US2603662A - Process for producing substituted hydroxy aromatic compounds - Google Patents
Process for producing substituted hydroxy aromatic compounds Download PDFInfo
- Publication number
- US2603662A US2603662A US758987A US75898747A US2603662A US 2603662 A US2603662 A US 2603662A US 758987 A US758987 A US 758987A US 75898747 A US75898747 A US 75898747A US 2603662 A US2603662 A US 2603662A
- Authority
- US
- United States
- Prior art keywords
- tertiary
- nucleus
- aromatic compound
- hydroxy aromatic
- alkyl group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 26
- -1 hydroxy aromatic compounds Chemical class 0.000 title claims description 18
- 230000020335 dealkylation Effects 0.000 claims description 14
- 238000006900 dealkylation reaction Methods 0.000 claims description 14
- 150000001491 aromatic compounds Chemical class 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical class N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 description 32
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 18
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 11
- 125000003118 aryl group Chemical group 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 10
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 8
- 150000002989 phenols Chemical class 0.000 description 8
- 125000001424 substituent group Chemical group 0.000 description 8
- 238000006467 substitution reaction Methods 0.000 description 8
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- HOLHYSJJBXSLMV-UHFFFAOYSA-N 2,6-dichlorophenol Chemical compound OC1=C(Cl)C=CC=C1Cl HOLHYSJJBXSLMV-UHFFFAOYSA-N 0.000 description 4
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 230000002152 alkylating effect Effects 0.000 description 4
- 230000029936 alkylation Effects 0.000 description 4
- 238000005804 alkylation reaction Methods 0.000 description 4
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 230000006210 debutylation Effects 0.000 description 4
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006208 butylation Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- 150000002440 hydroxy compounds Chemical class 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- ICKWICRCANNIBI-UHFFFAOYSA-N 2,4-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C(C(C)(C)C)=C1 ICKWICRCANNIBI-UHFFFAOYSA-N 0.000 description 2
- BNHQYVCDRXORAW-UHFFFAOYSA-N 2,4-ditert-butyl-1-methylbenzene Chemical compound CC1=CC=C(C(C)(C)C)C=C1C(C)(C)C BNHQYVCDRXORAW-UHFFFAOYSA-N 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 150000001336 alkenes Chemical group 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- GGNQRNBDZQJCCN-UHFFFAOYSA-N benzene-1,2,4-triol Chemical compound OC1=CC=C(O)C(O)=C1 GGNQRNBDZQJCCN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 125000004181 carboxyalkyl group Chemical group 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 125000001188 haloalkyl group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000033444 hydroxylation Effects 0.000 description 2
- 238000005805 hydroxylation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000011987 methylation Effects 0.000 description 2
- 238000007069 methylation reaction Methods 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 229960004889 salicylic acid Drugs 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 229960003010 sodium sulfate Drugs 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 2
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 description 1
- MUVQKFGNPGZBII-UHFFFAOYSA-N 1-anthrol Chemical class C1=CC=C2C=C3C(O)=CC=CC3=CC2=C1 MUVQKFGNPGZBII-UHFFFAOYSA-N 0.000 description 1
- NVLHGZIXTRYOKT-UHFFFAOYSA-N 1-chloro-2,3-dimethylbenzene Chemical group CC1=CC=CC(Cl)=C1C NVLHGZIXTRYOKT-UHFFFAOYSA-N 0.000 description 1
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 1
- UMPSXRYVXUPCOS-UHFFFAOYSA-N 2,3-dichlorophenol Chemical compound OC1=CC=CC(Cl)=C1Cl UMPSXRYVXUPCOS-UHFFFAOYSA-N 0.000 description 1
- CWSNVVXDGQVVDZ-UHFFFAOYSA-N 2,4-ditert-butyl-6-chlorophenol Chemical compound CC(C)(C)C1=CC(Cl)=C(O)C(C(C)(C)C)=C1 CWSNVVXDGQVVDZ-UHFFFAOYSA-N 0.000 description 1
- WBHAUHHMPXBZCQ-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound COC1=CC=CC(C)=C1O WBHAUHHMPXBZCQ-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- IJALWSVNUBBQRA-UHFFFAOYSA-N 4-Isopropyl-3-methylphenol Chemical compound CC(C)C1=CC=C(O)C=C1C IJALWSVNUBBQRA-UHFFFAOYSA-N 0.000 description 1
- RETRALMQVUXTPQ-UHFFFAOYSA-N 4-tert-butyl-2,6-dichlorophenol Chemical compound CC(C)(C)C1=CC(Cl)=C(O)C(Cl)=C1 RETRALMQVUXTPQ-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- USVZHTBPMMSRHY-UHFFFAOYSA-N 8-[(6-bromo-1,3-benzodioxol-5-yl)sulfanyl]-9-[2-(2-chlorophenyl)ethyl]purin-6-amine Chemical compound C=1C=2OCOC=2C=C(Br)C=1SC1=NC=2C(N)=NC=NC=2N1CCC1=CC=CC=C1Cl USVZHTBPMMSRHY-UHFFFAOYSA-N 0.000 description 1
- 241001167018 Aroa Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- 201000005569 Gout Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 238000007065 Kolbe-Schmitt synthesis reaction Methods 0.000 description 1
- 101100491995 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) aro-1 gene Proteins 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- YDHWWBZFRZWVHO-UHFFFAOYSA-N [hydroxy(phosphonooxy)phosphoryl] phosphono hydrogen phosphate Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(O)=O YDHWWBZFRZWVHO-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003282 alkyl amino group Chemical group 0.000 description 1
- 150000001346 alkyl aryl ethers Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- IXWIAFSBWGYQOE-UHFFFAOYSA-M aluminum;magnesium;oxygen(2-);silicon(4+);hydroxide;tetrahydrate Chemical compound O.O.O.O.[OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] IXWIAFSBWGYQOE-UHFFFAOYSA-M 0.000 description 1
- IXEAJHDEEGBYNE-UHFFFAOYSA-N benzene-1,2-diol;2-methylprop-1-ene Chemical compound CC(C)=C.OC1=CC=CC=C1O IXEAJHDEEGBYNE-UHFFFAOYSA-N 0.000 description 1
- VXCZUTVNHFGJDL-UHFFFAOYSA-N benzene-1,4-diol 2-methylprop-1-ene Chemical compound C1(O)=CC=C(O)C=C1.C=C(C)C VXCZUTVNHFGJDL-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 108010057108 condensin complexes Proteins 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 150000002085 enols Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229910000286 fullers earth Inorganic materials 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- BLNWTAHYTCHDJH-UHFFFAOYSA-O hydroxy(oxo)azanium Chemical compound O[NH+]=O BLNWTAHYTCHDJH-UHFFFAOYSA-O 0.000 description 1
- 125000002346 iodo group Chemical group I* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- ULYZAYCEDJDHCC-UHFFFAOYSA-N isopropyl chloride Chemical compound CC(C)Cl ULYZAYCEDJDHCC-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000004780 naphthols Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- OQUKIQWCVTZJAF-UHFFFAOYSA-N phenol;sulfuric acid Chemical compound OS(O)(=O)=O.OC1=CC=CC=C1 OQUKIQWCVTZJAF-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- IOVGROKTTNBUGK-SJCJKPOMSA-N ritodrine Chemical compound N([C@@H](C)[C@H](O)C=1C=CC(O)=CC=1)CCC1=CC=C(O)C=C1 IOVGROKTTNBUGK-SJCJKPOMSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- HODRFAVLXIFVTR-RKDXNWHRSA-N tevenel Chemical compound NS(=O)(=O)C1=CC=C([C@@H](O)[C@@H](CO)NC(=O)C(Cl)Cl)C=C1 HODRFAVLXIFVTR-RKDXNWHRSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/02—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/14—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by addition reactions, i.e. reactions involving at least one carbon-to-carbon unsaturated bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/18—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by condensation involving halogen atoms of halogenated compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/62—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by introduction of halogen; by substitution of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic Table
- C07F3/10—Mercury compounds
- C07F3/12—Aromatic substances containing mercury
Definitions
- This invention relates to a process for producing substituted hydroxy aromatic compounds and-more particularly to a process for producing hydroxy, aromatic compounds bearing a substitu e t in p a position on the nucleus other than ⁇ the tom which eld-he tak ii, q PWPbfifi' t n-i s" 1 6 well known that the. orientation of enterlips suhstitueiit. into the nucleus of an, aromatic ton poundv dep nds:
- a :iurtherobjeot achieved by this invention: is pr vide. .8; process which yields essentially only one. isomer .of ;a. substituted 'hydroxyv aromatic compound to the substantial exclusion of other ,iso ners 1 which normally are formed von direct.
- the (oriented tertiary'alkyl,group" as used herein may-therefore be defined asa tert "rfy allgyl group which ispresent on"-the:1fii 'g position dictated by the orienting forces Qf fthe funalkylated "compound.
- a tertiary butyl group would enter the meta position thusio'rinn sta-n t es iarv t benzen r.
- the first step as an alkylation: step.
- the, i- A'cccrdi'n'g to a preferred embodiment of my process of my invention comprises either prepar.- invention; 1 -;use phenol or a substituted phenol ing or selecting a tertiary-alkylategi. aromatic V as a,.starting;materiall
- I may use other compound and treating this compound-toiorm a; 10. substituted 7.
- benzenes as represented by the substituted derivative, such that on removal of. formula,:,
- one or more of the tertiary alkyl groups there I l sulting compound will have substituents placed in relation to one another in a manner abnormal I to that which would result from direct substitution -in the unallrylated parent compound, or such tft cn'removalicfz'onebrmore'of the-tertiary i c sfl ns e sq ri a ma e m- -where Yisone of the substi 'ents as-listed bcve.
- Thearcmatic compoundsj which may, begus ti l f z Q jar m ct ma -be Tas starting'imatelials in accordance with the pros;- re i fl 'ec e i yq s i w h mammals- 'es's'bf this" invention fall' into three general '5 13' ag r qph a a a q efip containi classes, namely: (1) aromatic compounds conlzj P -ln0lecu1ein the presehde ';ta ining an hydroxyl radical, such as phenol, of smanQamounts f' d q si n a ht.
- the substituent'addedin the second step of myinvention is an alkyl group
- tertiary alkyl groups are more easily removed than primary or secondary groups.
- condensin agents may be used in the alkylation step including aluminum chloride, zinc chloride, zirconium tetrachloride, ferric chloride, boron tri-fiuoride, phosphoric acid, sulfuric acid, activated clays and the like.
- the second major step of my process comprises substituting on the aromatic nucleus in at least one of' the unoccupied positions of the alkylated aromatic compound produced in the first major step, an organic or inorganic radical depending upon the final product desired. Substitution is effected in a; conventional manner other metallo radicals, and the like.
- the replacement of hydrogen on the nucleus of an' aromaticcompound with a radical such as a halo, nitro, sulfo, and the like may be accomplished by a direct substitution. Substitution of certain radicals, however, may. require a more complex procedure.
- Equation VI substitution of an hydroxyl radical onth'e' nucleus of an aromatic "cofr'np'oun'cl such as toluene may require two separate reactions as illustrated hereinbelow by Equations VI, VII, and VIII.
- toluene may be; alkylated with isobutylene to give 4,6-ditert butyltoluene.
- the 4,6-di-tert-butyltoluene is then chlorinated, the chlorine going into the open ortho position.
- the chloro-derivative is then converted by hydrolysis to an hydroxy compound, andthe hydroxy compound is then dealkylatedto give o-cresol.
- Step 21 would consist of alkali fusion to form the hydroxyl radical.
- Step 3 would then be 'debutylation.
- 'An alternate procedure would be to perform a nitration in Step 2a.
- the nitroradical attached to Step 2a could then be-reduced in Step2b to give the amino derivative; the amino derivative could then be converted to a diazonium salt, and treated with alcohol to form a substituted phenol, which on dealkylation would yield o-cresol.
- this invention is usefully applied to the preparation of substituted aromatic hydroxy compounds such as phenols, naphthols, anthranols: and: other polynuclear' hydroxy compounds.
- Hydroxylation may be carried out according to conventional systems such as those hereinaboveset forth. In some instances hydroxylation followed .by. dealkylation may be broughtabout by a single operation, such as in high-temperature catalytic hydrolysis of tertiary butylated chlorinated aromatic compounds.
- the third major step of my process comprises dealkylating the substituted alkylated hydroxy aromatic compound produced according. to-the preceding steps oLmy invention.
- This step removes at least one 'of the tertiaryalkyl groups added in step one to produce an hydroxy aromatic compound bearing a substituent in a position on the nucleus other than the position which would be taken on direct, substitution without the aid of a tertiary alkyl blocking agent.
- the number of tertiary alkyl groups introduced into the nucleus of the aromatic compound depends? upon the nature of the final product desired; Likewise, in the dealkylation step, the number of tertiary alkyl groups that I split offwill depend upon the final product desired.
- Dealkylation may be readily effected by heating the substituted alkylated hydroxy aromatic'compound in the 'p'resence' of a dealkylation cataly'sflsuch as-sulfuric acid, alkyl sulfuric acid esters,-;tetra-phosphoric acid, sulfonic acids, activated clays, metal oxides, aluminum chloride,- or the molecular-compounds of aluminum chloride withphenols, alcohols and the like.
- a dealkylation cataly'sfl such as-sulfuric acid, alkyl sulfuric acid esters,-;tetra-phosphoric acid, sulfonic acids, activated clays, metal oxides, aluminum chloride,- or the molecular-compounds of aluminum chloride withphenols, alcohols and the like.
- a dealkylation cataly'sfl such as-sulfuric acid, alkyl sulfuric acid esters,-;tetra-phosphoric acid, sulfonic acids,
- dealkylation I am referring to a splitting off of the oriented tertiary alkyl group or groups added during the first step of my process.
- lDealkylationf in thecontemplated'manner does not split off such methyl, ethyl, or propyl or other primary or secondary alkyl groups as are present.
- dealkylation catalysts as used herein, I mean clays and metal oxides or those compounds, usually of an acidrnature, described hereinabove which when present even in relatively small amounts will cause a splittingpfi of the oriented tertiary alkylg-roups added in the first step without substantial decomposition of the original aromatic compound and'withoutafiecting any substituent added in the-second step of my process.
- Step 2a Phenate formation I I on ONs I j t- 4Hn 1 I I t 4H; I (Step 2b)Ko1be-Schmitt synthesis 5 I I ONa. 0H
- Example ;1 corresponds to the reaction illustrated .hereinabove by Equation .IV.
- reaction product was then washed several times .with 5 .per cent aqueous sodium bisulfite to ,remove dissolved chlorine and with per cent aqueous sodium bicarbonate .to remove any hydrogen chloride still present.
- the product was then dried with anhydrous sodium-sulfate and charged .to a fractionating-still havingia column equiualenttto .11'5 theoretical :plates. After removing the rcarbon tetrachloride at atmospheric ;,pressure, the aremainder was fractionated into .a-severalrfractions at.
- EXAMPLE 2 4-isopropyl-3-methylphenol Int s sflaskc pr v ded with an a tator-were placed jlfliiegrams :of macresol and 5.4 .srams .of concentrated sulfuric :acid. The; m cresol-sulfuriczacidmi-xture was maintained aha temperature .of ⁇ 70 C. and ,isobutylene was. introduced SIOWIYabGIOW thG surface ofthe solution. The additionof isobutylene to the :reactant mixture was continued vuntil .56 grams .of isobutylene had been absorbed.
- the neutralized product was then fractionated .at atmosphericpressurefthrougha 15. plate column. .
- the temperature. of the column was. increased to.,18.0 C. during ..which.time asmall amount of polymerized isobutylene ,was collected. ..The.distil-. lationsystemwas then allowed to ,cool and ,placed under -.,a pressure of;20. mm. of mercury.
- the neutralized product was then washed with water, dried, and fractionated'through aj15 plate columnat atmospheric pressure.
- Thetemperature of the col-v ume wasjincreased'up to. 190? C; during which time a smallamount of tertiary butyl alcohol, water and polymerized isobutylene were collect-f ed.1:.'1fhe distillation system was then allowed' to cool and placed under a pressure of 20 mm. of mercury. Fractionation was then continued whereby therewas obtainedafsrnall'amount each v of unreacted phenol and of A-tert-butylphenol and. a large amount of 2.4-di-tert-buty1phenol.
- the product wasthen dried with anhydrous. sodium sulfate and charged to a distilling fiask where most of the carbon tetrachloride was removed by heating on a steam bath. After removing the carbon tetrachloride, the remainder of the product was fractionated through the column equivalent to '5 theoretical plates. The'fraction boiling at 148 to 151.2 C. at 20 mm. was determined to be 2,4-di-tert-butyl-6-chlorophenol.
- I claim:- e A'process for producing a substituted hydroxy aromatic'compou'n'd which comprises the ste'ps'of substituting at least one tertiary alkyl matic compound; and thereafter catalytically dealkylating the resulting sub stituted alkylated hydroxy aromatic compound at a dealkylation temperature below about 350 C. to remove at least one tertiary alkyl group introduced by the initial step of the process. 7 r 1 2.
- a process for producing a substituted phenol which comprises the'steps of substituting at least one tertiary alkyl group having from 4 to 12 carbon atoms on the nucleus of a penhol capable of exerting a directive influence upon the entering tertiary alkyl group; introducing atleast one substituent selected from the group consisting of primary alkyl, secondary alkyl, aryl, aralkyl, afcyl, alkenyl, haloalkyl, hydroxalkyl, alkylamino'alkyl.
- a process for producing asubstituted phenol which comprises the steps of substituting at least,
- a process for producing 2, 6-dichlorophenol which comprises alkylating phenol with isobutylene to form 4-tertiary-butylphenol, chlorinating. said -tertiary-butylphenol'to form the corre sponding 2,6gdichloror4-tertiary-butylphenol, and thereafter catalytically @dealkylating said 2,6-dichloro-4 tertiary-butylphenol at a dealkylation temperature below about 350 cto form 2,6-dichlorophenol.
- Y I 5 Aprocess for producing ortho-chlorophenol which comprises alkyla ting phenol with isobutylene to form '2,4-di-tertiary butylphenol, "ch10 rinating the resulting 2,4-di-tertiaiy butyiphndr to form "the corresponding ZA-di-tertiary-butyl fi-chlorophenol; and thereafter c'atalytically'de alkylating the resulting2,4-di-tertiary-butYl-6 chlorophenol at a dealkylation temperature below about 350 C. to form ortho-chlorophenol.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
..a.lrea y ,p esent n m eiwsl i n iv ndsl e n n. e
azot etionha rd h drolysi -t.
spru e-S then-thatot the pestv Anoth r object. achieved b Patented July 15, 1952 elocates} Q PRODUCING sUBSTI'rUIrED 1. ,HYZDROXY AROMATIC. CO1!POUNDS:
rarfassienor to a i a burgh; Pa.,.a'=corporationof llelaware. v
No Drawingg' Appllcationj Serial No. 758,9
. 5 Claims. 1
This invention relates to a process for producing substituted hydroxy aromatic compounds and-more particularly to a process for producing hydroxy, aromatic compounds bearing a substitu e t in p a position on the nucleus other than {the tom which eld-he tak ii, q PWPbfifi' t n-i s" 1 6 well known that the. orientation of enterlips suhstitueiit. into the nucleus of an, aromatic ton poundv dep nds:
upon "the suhstituent groups the'Qa-romatic nucleus'. f1 he o a mma iomiq eus 8 .11 those which directthene gt enhose lro 'setlesh si twocliisses, 1.,
toting substitjentkto themetal-positionand wh c dirseisiiii is e er n u fii n o \ottho and/zor para positions, Substitutionin he para orienting influence and substitution 1 Toiiho end/ Pare ms iion o r o n s s t me a me o-e ie iin influ nce has ng ven mn she by emp o n a bl in r u 5! was stituti n in either the ortho or t f s an obj ct ach eved by this invention to P vide an wessio roducme ydroxy aromatic communes bearin a substi u n ;.in-;a position nwthernu eu t e than th positi n wh lwbu donqrmal y taken on, ireot;sub tit.ution according,,.to a ,simpler and more .economica1 y thisvinventionpis to. pro ide? a p o ss for producing :hydmxy 81'0- maticrco npoundsin'which asubstituent is placed at a redetermined abnormal :position ion the :oromaticznuoleus; 1 1 o V A :iurtherobjeot achieved by this invention: is pr vide. .8; process which yields essentially only one. isomer .of ;a. substituted 'hydroxyv aromatic compound to the substantial exclusion of other ,iso ners 1 which normally are formed von direct.
substitut on-u. a
lacoomnli'sh these .:and oti 1er ooJects; which will becomeapparent ago-the description-proceeds, by employing atertiaryalkylgroupi as a:b1ock- ,inxagent. I have found 'that ztertiaryl ia'lkyl groups: or ir'om 1112012, carhonratoms are particu- .larlmoesirahlo iorwthepurpose of my invention.
tertiary allcr l. rou s m y be ea ily added 2 9 an aromatiohucleusowe oonl nnds w conditions-mam they; be a aqil r m ve r the :desired "s bstitution; has; teken zn eoerw or disturbing, oth r .rsubs f uenta 0 th ie-tic qnucleus.-: Acriticaliactor-w th sp t horro moval of a tertiary alkyl group from anarornatic nucleus-without affecting other huclepssubstituents-is;thatrthe aromatic nucleus musticonta n a hydroxyiradicalr H F Inacdordance :with my invention; the, tort my ,alkylgroup or- -groups aused for blocking mus be oriented alkyl groups, e., the. tertiary; ....:il l :g'roups mu'stloocupy at least one ofthe. positi n to which an entering substituent would, be directed if the tertiary alkyl group were not blocking that position. oriented tertiary alkyl group then is one wh h occupies a definite spatial" position relative o" some other gropp'or some other part of the; aromaticnucleus'. The (oriented tertiary'alkyl,group" as used herein may-therefore be defined asa tert "rfy allgyl group which ispresent on"-the:1fii 'g position dictated by the orienting forces Qf fthe funalkylated "compound. For example, in, "the a t t qn 2 aimeta di t n om und B ck e nitrobenjzen'e with iisobutylene, a tertiary" butyl group would enter the meta position thusio'rinn sta-n t es iarv t benzen r. t eas th ter iary' ty g ou w u d .ocoupy h orientegiff position with respectto thefnitro group 'wi the otherhandif t ertiaigy butyl ri- .nitrqsr ub' wou d f "rient'ed' tertian alkyl group.imetagnit' tiarvbutmbenzene ont i orient d f'e'nzer'ie juices filkylgrou -"f r jiln b rief, the process of myinventiofri inclu 's "lthefisiieps of lalkylating an iai omaticlcomp d capable oirexeritin'g a 'rective infiuenc" firstllent "hgiie't af alkyl' .the 'i1,i.l,cleus of, her" V to p undja d s ed' u s i lent; and Ithe oaikyla ing riei u s itutea a kt'la 'ediaromati q to g ve a substituted aromatic}. I
T e n -un process of. inventionth ialkylat' n, be omitted in certainiris cesr ,Eo ekaniple ma be; u -ala Jib? ;c leus followed l-by :dealkylatiom to: rem-ove the mer- .tiaryialltyl .groupiorzg'roupsiiwhich were; originally su tabl ails atedams at c r o e eu idsare-ave =By="-"an aromatic-compound apable Of exert- Where, an hydroxyl; radic T: i 2,603,662 i:
present. If, however, a suitably alkylated aroa methylation, hydrolysis, and deputylation as illusmatic compoundgisnot availiaible, itjmay be preft area; by; Equation k-helvuf ,If} toluene is pared according 'to 'any"meanskncwn'inthe" art, "chosen as the starting"'material for thepreparasuch as alkylation, rearrangement of a tertiary tion of o-cresol my'process may comprise the alkyl aryl ether, etc. For the purpose of illus- 6' steps of butylation, chlorination, hydrolysis, and tration of my invention I will hereinafter describe debut'ylation-as-illustrated by Equation VI below. the first step as an alkylation: step. Thus, the, i- A'cccrdi'n'g to a preferred embodiment of my process of my invention comprises either prepar.- invention; 1 -;use phenol or a substituted phenol ing or selecting a tertiary-alkylategi. aromatic V as a,.starting;materiall However, I may use other compound and treating this compound-toiorm a; 10. substituted 7. benzenes as represented by the substituted derivative, such that on removal of. formula,:,
one or more of the tertiary alkyl groups there I l sulting compound will have substituents placed in relation to one another in a manner abnormal I to that which would result from direct substitution -in the unallrylated parent compound, or such tft cn'removalicfz'onebrmore'of the-tertiary i c sfl ns e sq ri a ma e m- -where Yisone of the substi 'ents as-listed bcve. i nd b a fl t substantlal Furthermore;- more tliaiithe substitii'iit'nia be q -s i m 'w m d- 2 present onthe aromaticmucleiis provided t t -obtainedbydirectsubstitution in the unalkylated g least 'tWbC Q bhfDb t dhE into one pai t p 1 j of which anentering substituent will be oriented.
land. other u s it te f mi P 1 h? j same-11s ceral character} 7 t will hefrecogriiae dthat the,abovelist;does fnot'includeall ofth'e'radicals whiclifexert a a v 40 recti'v'e influence n substitutionlreactions; This V The P T- am Step. pi 11m; process comprises :listfis given bv wayioi.eiamiiie only anus-not i t??? i ix r l fi 191 7 9 ena e" .Q "intendedto mposeaiiy limitations an the scope 'f l s' dlrectlve WF iuPQ I fi ribr-jthis 'inventidm; -51 1 mg flvtl alk l oup- The mber of ter ary i ,0,t1i r,a biiiatietom ouii capable or exerting FYl f p ,m lc yi th n q s'f i' fih ajdirectiveliniiuenceuponaivfirstentering ter- 45 m at FQ Pd'dPD S'uQOQ the} atureof 'tiaiy alkyl grciipl'are naph halene; insane, anhe-fi al p du s d- F rbxamplqinfthe Hthfa'cene, 'fiuor'eneIphenanthrene; and 'the like. PEP 'F V- n -d mo henol from jliheno'l. :stiu ther cqmlioufndscapable fofl j'er zertingfan Q t'lfipfim y' y-t bl ck-jt e posit fi jt ius orienting infiuencefuponenteringftertiaryfalkyl V lrl j9 -'tg r y -alm er0up.'- -In"the jgrdups u iit o't ie ciass or netrocycl sssuchas '5 'Preparatwn: tr9PP i f om frzh nql it raii, i'ophe efii t'ri'ma dump ne.1ndole.be riwould fib 9k 6-pq' ibi 'f =tionsthus'requiring three-tertiary alkyl-gro'ups;
Thearcmatic compoundsjwhich may, begus ti l f z Q jar m ct ma -be Tas starting'imatelials in accordance with the pros;- re i fl 'ec e i yq s i w h mammals- 'es's'bf this" invention fall' into three general '5 13' ag r qph a a a q efip containi classes, namely: (1) aromatic compounds conlzj P -ln0lecu1ein the presehde ';ta ining an hydroxyl radical, such as phenol, of smanQamounts f' d q si n a ht. cr esoli naphthol,"etc., and substituted derivatives 9 v 9 1 a es' mereiy' undeflhat' and 'bi'these; (2) aromatic compounds containing a pressure; other means o bbtainihg'thfllkylated a u t at em cbnvertible t an 60 ccmpoun'dimay be 'employed w'ifliolltdeviating jdroxyl radical, such as chlorobenzene, omand o the j t of $1115 n n lkyl pachlorotoluen e chloroxylene etc and aro- 1 connected t0 thearomatic Ilnatic compounds not containing an hydroxyl fi 8 3 9 S n I h e fo nd that' tertiary alkyl 'radical or a radical that can be directly converted g s f e yj i m t into an hydroxyl radical, such as toluene, xylene, 6 bthellisubstituentsi n the? arcmatic 'nucleus naphthalene, anthracene, etc. 'flThe procedural f fi 1a "9 i f r s cqnda alkyl Qs QDS 'lv aturallyawill va y depending upon the groups. 1 particular material chosen. 7 Examples 8 'W kyPgmups which "'lIi phenol is chosenas the-startingmat ri l o Fc we tettiary but, tertiary thb brepar'ationof 2,6-dich1biOPh n01 my p og 11 rl gbutyl, trnsobutyl; and the likes lnlacccrdance may comprise "the steps {of butylaticn, chlorinafwlth e e eii folmzofzmyinventionz-l emvtion; and debutylatibn asillustrate'd by Equaticn 1931 a? er iary butyl-1gr0lip i i v y below; If;h1orobe'nz en is chbseni as "the .easilyigemoved' 'to'form isobutylne whichicanbe starting material for? the. preparation of o-cresol -recoverediand used-tiagain for alkylatiori purposes. *myl'miocessimayicemprise the steps'of butylatio'n, 7'5 =Fu'rthern'iore; iisoloutyl'ene its'elt is inexpen'sive and is readily available-inrefinerygases-such as those resulting from cracking-operations.
When the substituent'addedin the second step of myinvention is an alkyl group, it is important to choose as an alkylatingmaterial"in'the first step a tertiary alk yl'group that is more easily removed than the alkyl group put on in the second step. Usually tertiary alkyl groups are more easily removed than primary or secondary groups. For example; ifja normal amyl radical is added to an aromatic nucleus in the second step of my invention, I prefer to employ trimethylethylene or isobutylene as my alkylating material in the-first step. Various condensin agents may be used in the alkylation step including aluminum chloride, zinc chloride, zirconium tetrachloride, ferric chloride, boron tri-fiuoride, phosphoric acid, sulfuric acid, activated clays and the like.
The second major step of my process comprises substituting on the aromatic nucleus in at least one of' the unoccupied positions of the alkylated aromatic compound produced in the first major step, an organic or inorganic radical depending upon the final product desired. Substitution is effected in a; conventional manner other metallo radicals, and the like. The replacement of hydrogen on the nucleus of an' aromaticcompound with a radical such as a halo, nitro, sulfo, and the like may be accomplished by a direct substitution. Substitution of certain radicals, however, may. require a more complex procedure. For example, the substitution of an hydroxyl radical onth'e' nucleus of an aromatic "cofr'np'oun'cl such as toluene may require two separate reactions as illustrated hereinbelow by Equations VI, VII, and VIII. "As exemplified by Equation VI, toluene may be; alkylated with isobutylene to give 4,6-ditert butyltoluene. The 4,6-di-tert-butyltoluene is then chlorinated, the chlorine going into the open ortho position. The chloro-derivative is then converted by hydrolysis to an hydroxy compound, andthe hydroxy compound is then dealkylatedto give o-cresol. Instead of chlorination in Step 20., I might have sulfonated. In this case, Step 21) would consist of alkali fusion to form the hydroxyl radical. Step 3 would then be 'debutylation. 'An alternate procedure would be to perform a nitration in Step 2a. The nitroradical attached to Step 2a could then be-reduced in Step2b to give the amino derivative; the amino derivative could then be converted to a diazonium salt, and treated with alcohol to form a substituted phenol, which on dealkylation would yield o-cresol.
It is therefore to be understood that in using the term substitution I am referring to a replacement of hydrogen on an aromatic nucleus by an organic or inorganic radical regardless of the number of separate reactions involved in adding a particular radical. I
As mentioned. above if the particular starting out in: a continuous nucleus. Accordingly, this invention is usefully applied to the preparation of substituted aromatic hydroxy compounds such as phenols, naphthols, anthranols: and: other polynuclear' hydroxy compounds. Hydroxylation may be carried out according to conventional systems such as those hereinaboveset forth. In some instances hydroxylation followed .by. dealkylation may be broughtabout by a single operation, such as in high-temperature catalytic hydrolysis of tertiary butylated chlorinated aromatic compounds.
The third major step of my process comprises dealkylating the substituted alkylated hydroxy aromatic compound produced according. to-the preceding steps oLmy invention. This step removes at least one 'of the tertiaryalkyl groups added in step one to produce an hydroxy aromatic compound bearing a substituent in a position on the nucleus other than the position which would be taken on direct, substitution without the aid of a tertiary alkyl blocking agent. As pointed out in the first'major step above, the number of tertiary alkyl groups introduced into the nucleus of the aromatic compound depends? upon the nature of the final product desired; Likewise, in the dealkylation step, the number of tertiary alkyl groups that I split offwill depend upon the final product desired. Dealkylation may be readily effected by heating the substituted alkylated hydroxy aromatic'compound in the 'p'resence' of a dealkylation cataly'sflsuch as-sulfuric acid, alkyl sulfuric acid esters,-;tetra-phosphoric acid, sulfonic acids, activated clays, metal oxides, aluminum chloride,- or the molecular-compounds of aluminum chloride withphenols, alcohols and the like. Inthe case of clays or metal oxides good results have been obtained by contacting the material tobe dealkylated with the heated body of clay or metal-oxide. advantageously conducted at atmospheric pressure, although 'superatmospheric pressures and. sub-atmospheric pressures may be used in some instances. V
It will be understood that in using the term dealkylation I am referring to a splitting off of the oriented tertiary alkyl group or groups added during the first step of my process. lDealkylationf in thecontemplated'manner does not split off such methyl, ethyl, or propyl or other primary or secondary alkyl groups as are present. By the term dealkylation catalysts as used herein, I mean clays and metal oxides or those compounds, usually of an acidrnature, described hereinabove which when present even in relatively small amounts will cause a splittingpfi of the oriented tertiary alkylg-roups added in the first step without substantial decomposition of the original aromatic compound and'withoutafiecting any substituent added in the-second step of my process.
The process of my'invention is commercially attractive-inthati-the tertiary alkyl blocking group may be recovered and used over and over. Thus tertiary olefins, usually of high purity, may be recovered and recycled to the alkylation step. Accordingly, my invntion'may readily be carried manner withwa distinct advantage. -zii'-.-
- Thdrollowingrequations: liaisin -insurm- Dealkylation is cipies'vdf my invention are not to be construed as limiting the same.;-- These equattions'indicate thev essential chemical; reactions which-take/plaQe and do not necessarily indicate all of the actual steps that would be used in preparing and isolating the compounds mentioned. I
- 'E QUATIONI-"' I f4-isdmom'Jl m-Ic resol I 90 13 CaHaV cm smmpylepe) CH:
F C4 s Ha (isobutylene) (Step 2)-Condensation v I I (formaldehyde) (Step 3) Debutylation, V ,s I Li.
I b i -'(3 Inethyl42-hpdroxyphenyl)hiethiine Direct condensetion' of ro-cresol' with formaldehyde would produce a mixture of bis-('3-methy1- 'z-hydroxyphenyl) methane, bis+(3-methy1-4-hy- 8 s droxyphenyl) methane, and 2,4-dihydroxy-3,3'- dimethyl diphenyimethahe.
I EQUATION III I o-Hydrozcybenzoi'c acid (salicylic acid) (Step 1)Butylation 0 I OH I I r I 10 j, +i-ciHa (is butylene) I I t- 4H0.
(Step 2a)Phenate formation I I on ONs I j t- 4Hn 1 I I t 4H; I (Step 2b)Ko1be-Schmitt synthesis 5 I I ONa. 0H
7 COONa CO; -v I t-4H9 II I t- 4H9 V (Step 2c)Acidification I I 1 11 I OH I oo0i a oooH .7 I 1 'L s, t- 4119 t-(hHn Y if (Step 3)Debutylati0n I 1 CI H OH I o I 40 r v -OOOH COOH I t- 4Hs v.
I t I I (isobutylene) t- 4H o-hydroxybenzoie acid Q I (salicylic acid) Nori' n ally the Kolbe-Schmitt synthesis with phe- .nol itself yields a mixture of 0- and p-hydrox'ybenzoic acid.
r EQUATION IV I 2,6-dichlorophenol I (Step 1)Butylation in OH 1-0411; t (isobutylene) s 111w (Step 2)-Ch1orination I OH I *ze-diemtropnenol- 08362 I n AI I I 12 Direct monocvmofinya'tionidrthoxylene would give v. y r I f v;, v a, mixture of 31am: .IrChIQ TO. qrthoxylene leading OH (Step 3 I {:I: I I to the formation ov namfiifml 2,3- and 3,4- I I II II I II I I ylphe oL I HO EQUATION IX allq e (Step 1)Butylatio'1i t-C4H9 catechol 0H 0H Zl- C 4H3 (isobutylene) Direct monochlorinationof phenol would give a mixture of 2- and 4-ch1oropheno1 which upon 4; I hydrolysis would give a, mixture of catechol and (isobutylene) hydroquinone.
" EQUATION x1 o-CresoZ I (ste 1)Butylatiou t -olm" formation of 2,4-dlchlorophenol which upon hy- 4 drolysis would yield a, 1,2,4-trihydroxy benzene.
n; I I I OH EQUATION x 1 v0.11, om -om V +2i-C4Ha I Catechol (isobutylene) (Step 1)-Butylation OH D II I I I I,I OH -C4Ho o-creosol Direct methylation of chlorobenzene would lead to the formation of a mixture of 0- and p-cresol. 2 l-C4Hol I (mbutym?) EQUATION XII t- 4H. o-C'hlorophemol A H (Step 2q)--Chlorination I I (Step 2)-Ch'lorination OH on I 0 OH I eel H. I 01 41.11. 12-0411! 01 t-C4H9 I 66 I t-C4HI III I t- 4H: I 4H t- 4H9 V gstep zpl -Ilydmlysis (Step 3)Debut ylation 113 Direct i-mono chlorination of ;phenol wields i-aemix ture'pf -;,-2 .and-zei-chlorophenol.
Equations I, II, Iv, v, xand anrdliustratel paring .certain specific compounds I according to the process of -.my:invention.
Example =;1 corresponds to the reaction illustrated .hereinabove by Equation .IV.
.Example ,2 corresponds :to .the reaction 1llu s-- trated hereinabove by Equation 1.
- -ExampleB .corresponds {to the reaction jillustratedihereinabove .by Equation .XII.
;2;6+dichlorophenol .Irito .-a -fla'sk provided with an agitator were mascara grams .of phenol and. 4.7. grams of concentratedsulfuric acid. Thephenol-sulfuric acid mixture wasmaintained at a-temperatu-re of 70 C. ,and :isobutylene .-.was introduced slowly below the .surface of the, solution. The addition-of isobutylene to. the reactant mixture wasqcontinued until v5 6;grams ,of .isobutylene had-been"absorbed. The produc'tthus obtained .was washed several timeswithwatenand then refluxed iwithaai-small amount .of..alcoholic;KOH to .neutralize the .remaining acidic bodies. After washing'ag-ain'with water, the neutralized product .was fractionated at atmospheric vpressure through .a .15 .plate column. ,The temperature was-increased-unto 180 C. .during .Whichtime a small amount of polymetizedisobutylene was collected. The "distil- :lationsystem wasthenallowedito cool-and placed under .a..pressure-of 20..mm...of mercury. .Fractionation was then continued whereby there was obtained a small amount of .unreacted phenol boiling .at 85 .C. and a large amountof -4-tertbutylphenolboilingat 130 .to, 13 1 C. at..20 mm. pressure. ".This product had a ,melting 'point of 99C.
136.3 grams 1 of 4-tert-buty1phenol made in accordance with'the aboveprocedure, together'with ZOO-.grams v.of carbon tetrachloride were .placed in a flask excludedfromlight. The carbon; tetrachloridesolution of 4-.tert-.butylphenol:was maintainediat a temperature. of .about C. rand .chlorine was (introduced .below the surface of the solution. .The addition .of chlorine :to the :reactant mixture was continued :until 595.8 ,grams of:ch1orine were, absorbed. The. reaction product was then washed several times .with 5 .per cent aqueous sodium bisulfite to ,remove dissolved chlorine and with per cent aqueous sodium bicarbonate .to remove any hydrogen chloride still present. The product :was then dried with anhydrous sodium-sulfate and charged .to a fractionating-still havingia column equiualenttto .11'5 theoretical :plates. After removing the rcarbon tetrachloride at atmospheric ;,pressure, the aremainder was fractionated into .a-severalrfractions at. a pressure of 20 ;-m of .:.;mercury -;1usin ar mzl-refluxaratio- .Thafractioniho n iatzraoato 152 :10; at; '20 :mm. wasrdetermined to be ;;-2 ,6 -d ichlor-4 tert*butylpheno1. fIhe, z oadichlor 4-tert-butylpheno1obtained-as above ;-was -:theridealkylated by passing it;- in. a molten :state through a Pyr x tube smoked with 15 to .130 --mesh ,Attapulgus clay maintained :at. a temperature between about 275iand 350' C. -;A white: crystalline; material melting-at 64" to 65.5 C. was obtained. Thismaterial-wasdetermined to be 2,6-dichlorophenol.
EXAMPLE 2 4-isopropyl-3-methylphenol Int s sflaskc pr v ded with an a tator-were placed jlfliiegrams :of macresol and 5.4 .srams .of concentrated sulfuric :acid. The; m cresol-sulfuriczacidmi-xture was maintained aha temperature .of {70 C. and ,isobutylene was. introduced SIOWIYabGIOW thG surface ofthe solution. The additionof isobutylene to the :reactant mixture was continued vuntil .56 grams .of isobutylene had been absorbed. The :product thus obtained :was washed several times with 10 .per cent aqueous sodium :hydroxide -and refluxed with a .small amountv of :alcoholic KOH to insure :complete neutralization. of the .acidcatalyst'. The neutralized product was then fractionated .at atmosphericpressurefthrougha 15. plate column. .The temperature. of the column was. increased to.,18.0 C. during ..which.time asmall amount of polymerized isobutylene ,was collected. ..The.distil-. lationsystemwas then allowed to ,cool and ,placed under -.,a pressure of;20. mm. of mercury. F 'rac tionationiwas then continued whereby therewas obtaineda.smallamount of unreacted .m -cresol distilling overiat .10 1-.C. and I a large. amount of gge rigbuty1+3emethylphenol boiling at;129 to 1180.4 grams of 6-tert butylr3:methylphenol made in accordance with the above procedure, together .with 79.0 grams of isopropyl chloride and'iZOO 111.15., ,of carbon ,disulfide were vplaced in a 'Bmeck' flask equipped with a stirrer and a reflux-condenser. While maintaining the ,tem perature of thecontents in the flask at 2'7" -C. 25'6.-.grams of zirconium tetrachloride were added ."in .increments .of 11.65 ,grams' at 510 minute intervals.- .The product obtained by this .reaction was added to ,anice-water mixture and .an oilylayer separated out. "This layer was washed severaltimes with 10 per cent-aqueous sodium bicarbonate tto remove any hydrogen chloride that mightibe present. The product was'then dried-withanhydrous sodium sulfate and charged to 'a fractionating still having a column equivalent to 1'5 theoretical "plates. After removing the carbon disulfide" at atmospheric pressure, the remainder was fractionated into 2 fractions at a pressureof 2O"mm.- of mercury. 'TIhe 'first'iraction boiling between 136.8 and 144.4";0. fiat 201mm. 'wasnmaide 111p -:mainly of pdi-isopropyl-m- I cresols. The :second fraction boiling :between l5l'.2 ;;and A157,.0-tC-..ati-20:;mm. solidification-cooling. L'I'hisr-latter,fractionzwasprecrystallizedrfrom petroleum-ether :until :a. solid "having -a ..constant melting :point was obtained. Thisisolid"'was --a white crystalline :materialwhich .melted sharply at 115;to 116 10. :and-wasidentified as .6- tert-butyl4@isopropyl+3emethylphenoL.
: II1 carrying-gout the :debutylation "step, 220:6
E AMP 3 o-C'lorop enol Into a flask provided with an agitator were placed 100!) grams of phenol and 50 grams of concentratedsulfuric acid. The phenol-sulfuric acid mixture was maintained at atemperature; of 7 0 "C, and isobutylene was'intro'duced slow ly' below the surface of the solution. The addition of isob'utylene was continued until 96]. grams of isobutylene had been absorbed. "The product thus obtained was refluxed with potassidm' "h'yd'roxide' dissolved in absolute alcohol toneutralize the'acid catalyst. The neutralized productwas then washed with water, dried, and fractionated'through aj15 plate columnat atmospheric pressure. Thetemperature of the col-v ume wasjincreased'up to. 190? C; during which time a smallamount of tertiary butyl alcohol, water and polymerized isobutylene were collect-f ed.1:.'1fhe distillation system was then allowed' to cool and placed under a pressure of 20 mm. of mercury. Fractionation was then continued whereby therewas obtainedafsrnall'amount each v of unreacted phenol and of A-tert-butylphenol and. a large amount of 2.4-di-tert-buty1phenol. 103.2 grams of 2,4-di-tert-butylphen'ol made in accordance with the above procedure; together with 300 mls. of carbon tetrachloride were placed in a3-neck flask equipped with a stirrer, a reflux condenser and a thermometer. The carbon tetrachloride solution of 2,4di- -tert-butylphenol was maintained at a temperature between about 3 and 6 C. and chlorinevwas introduced below the surface of the solution. The addition of chlorine to the reactant mixture was continued, until 16.2 grams of chlorine were absorbed. The reaction product was then washed with per. cent aqueous sodium hydroxide and withfwater to remove any hydrogen chloride that might be present. The product wasthen dried with anhydrous. sodium sulfate and charged to a distilling fiask where most of the carbon tetrachloride was removed by heating on a steam bath. After removing the carbon tetrachloride, the remainder of the product was fractionated through the column equivalent to '5 theoretical plates. The'fraction boiling at 148 to 151.2 C. at 20 mm. was determined to be 2,4-di-tert-butyl-6-chlorophenol.
The 2A-di-tert-butyl-G-chlorophenol obtained as above was then dealkylated by contacting it With'fullers earth maintained'at a temperature of about 275 C.- Isobutylene was liberated and i a liquid boiling between 174.5" and 175.8" C. was
collected. "This liquid was determined to consist mainly of o-chlorophenol. There was no evi f dence of'any p'-chlorophenol being formed.
While I have described my inventionherein with respect to various specific examples, it is 'to be understoodthat my invention is'no't limited to '16 the details of such examples, but may be variously practiced and embodied within the scope of the claims hereinafter made.
I claim:- e 1. A'process for producing a substituted hydroxy aromatic'compou'n'd which comprises the ste'ps'of substituting at least one tertiary alkyl matic compound; and thereafter catalytically dealkylating the resulting sub stituted alkylated hydroxy aromatic compound at a dealkylation temperature below about 350 C. to remove at least one tertiary alkyl group introduced by the initial step of the process. 7 r 1 2. A process for producing a substituted phenol which comprises the'steps of substituting at least one tertiary alkyl group having from 4 to 12 carbon atoms on the nucleus of a penhol capable of exerting a directive influence upon the entering tertiary alkyl group; introducing atleast one substituent selected from the group consisting of primary alkyl, secondary alkyl, aryl, aralkyl, afcyl, alkenyl, haloalkyl, hydroxalkyl, alkylamino'alkyl. carboxyalkyl, amino, amido, carbonyl, fiuoro, chlorofbromo, iodo, nitro, sulfo,hydroxy1, mer; capto, cyano, andmercuro radicals'into the,.nu-. cleus of the resulting alkylated phenol; and thereafter catalytically dealkylating the resulting substituted alkylated phenol at a dealkylation'teinperature below about 350?" C. to produce a sub stituted phenol and a free tertiary olefin having from 4 to 12 carbon atoms.
3. A process for producing asubstituted phenol which comprises the steps of substituting at least,
one tertiary butyl'group on the nucleus of a phenol capable of exerting a directive influence upon the entering tertiary butyl group; introducingfat least one substituent selected from the group consisting of primary alkyl, secondary alkyl; aryl, aralkyl; 'acyl, alkenyl, haloalkyl, hydro xy alkyl, alkylaminoalkyh carboxyalkyl, amino. amido, carbonyl, fluoro, chloroi bromo iod o, nitro, sulfoghydroxyl, mercapto, cyano, and mercuro radicals into the nucleus of the resulting alkylatedi phenol; and thereafter catalytically dealkylating the resulting substituted alkylated phenol at a dealkylation temperature below about 350C. to remove at least one tertiary butyl group introducedby the initial step or theprocess.
A process for producing 2, 6-dichlorophenol which comprises alkylating phenol with isobutylene to form 4-tertiary-butylphenol, chlorinating. said -tertiary-butylphenol'to form the corre sponding 2,6gdichloror4-tertiary-butylphenol, and thereafter catalytically @dealkylating said 2,6-dichloro-4 tertiary-butylphenol at a dealkylation temperature below about 350 cto form 2,6-dichlorophenol. Y I 5 Aprocess for producing ortho-chlorophenol which comprises alkyla ting phenol with isobutylene to form '2,4-di-tertiary butylphenol, "ch10 rinating the resulting 2,4-di-tertiaiy butyiphndr to form "the corresponding ZA-di-tertiary-butyl fi-chlorophenol; and thereafter c'atalytically'de alkylating the resulting2,4-di-tertiary-butYl-6 chlorophenol at a dealkylation temperature below about 350 C. to form ortho-chlorophenol.
The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date Niederl Mar. 9, 1937 Number 18 Name Date Kyrides June 13, 1939 Driesbach et a1 Mar. 12, 1940 Mills Nov. 19, 1940 Stevens et a1 July 21, 1942 Stevens et a1 Sept. 29, 1942 Olin July 9, 1946
Claims (1)
1. A PROCESS FOR PRODUCING A SUBSTITUTED BYDROXY AROMATIC COMPOUND WHICH COMPRISES THE STEPS OF SUBSTITUTING AT LEAST ONE TERTIARY ALKYL GROUP HAVING FROM 4 TO 12 CARBON ATOMS ON THE NUCLEUS OF AN HYDROXY AROMATIC COMPOUND CAPABLE OF EXERTING A DIRECTIVE INFLUENCE UPON THE ENTERING TERTIARY ALKYL GROUP; INTRODUCING AT LEAST ONE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALKYL, SECONDARY ALKYL, ARYL, ARALKYL, ACYL, ALKENYL, HALOALKYL, HYDROZYALKYL, AKLYLAMINOALKYL, CARBOXALKYL, AMINO, AMIDO, CARBONYL, FLUORO, CHLORO, BROMO, IODO, NITRO SULFO, HYDROXYL, MERCAPTO, CYANO, AND MERCURO RADICALS INTO THE NUCLEUS OF THE RESULTING ALKYLATED HYDROXY AROMATIC COMPOUND; AND THEREAFTER CATALYTICALLY DEALKYLATING THE RESULTING SUBSTITUTED ALKYLATED HYDROXY AROMATIC COMPOUND AT A DEALKYLATION TEMPERATURE BELOW 350* C. TO REMOVE AT LEAST ONE TERTIARY ALKYL GROUP INTRODUCED BY THE INITAL STEP OF THE PROCESS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US758987A US2603662A (en) | 1947-07-03 | 1947-07-03 | Process for producing substituted hydroxy aromatic compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US758987A US2603662A (en) | 1947-07-03 | 1947-07-03 | Process for producing substituted hydroxy aromatic compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
US2603662A true US2603662A (en) | 1952-07-15 |
Family
ID=25053938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US758987A Expired - Lifetime US2603662A (en) | 1947-07-03 | 1947-07-03 | Process for producing substituted hydroxy aromatic compounds |
Country Status (1)
Country | Link |
---|---|
US (1) | US2603662A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2739171A (en) * | 1951-05-02 | 1956-03-20 | Universal Oil Prod Co | Production of dihydroxy diaryl ethers |
US2767231A (en) * | 1953-03-30 | 1956-10-16 | Sun Oil Co | Separation of polyalkyl aromatic hydrocarbons |
US2807639A (en) * | 1955-05-11 | 1957-09-24 | Dow Chemical Co | 2-halo-4, 6-ditertiaryalkyl phenol esters |
US2831817A (en) * | 1956-08-22 | 1958-04-22 | Ethyl Corp | 3, 6-diisopropyl catechol antioxidant |
US2877210A (en) * | 1957-07-03 | 1959-03-10 | Hercules Powder Co Ltd | 2, 2'-methylenebis |
US3075832A (en) * | 1958-07-30 | 1963-01-29 | Ethyl Corp | Stabilized compositions |
US3123644A (en) * | 1964-03-03 | Dealkylation of nuclear polyalkyl | ||
DE1192206B (en) * | 1962-01-05 | 1965-05-06 | Geigy Ag J R | Process for the preparation of 1- (p-oxyphenyl) -aethyl-carbonyl (-2-) compounds |
US3454654A (en) * | 1967-05-02 | 1969-07-08 | Great Lakes Carbon Corp | Stabilized 2,4-dibromophenol and its production |
US3465047A (en) * | 1965-12-28 | 1969-09-02 | Sumitomo Chemical Co | Process for producing 2,6-xylenol |
US3465048A (en) * | 1966-03-08 | 1969-09-02 | Sumitomo Chemical Co | Method for preparing 2,6-xylenol |
US3530132A (en) * | 1966-02-10 | 1970-09-22 | Ciba Ltd | Water-insoluble anthraquinone dyestuffs |
US3538099A (en) * | 1965-05-17 | 1970-11-03 | Ciba Ltd | 8-quinolyl- and 8-quinaldyl carbamates |
US3692846A (en) * | 1969-09-04 | 1972-09-19 | Dow Chemical Co | Rearrangement and disproportionation of lower alkyl phenols |
US4076690A (en) * | 1975-03-10 | 1978-02-28 | Ciba-Geigy Corporation | Phosphonates, process for their manufacture and organic materials stabilized therewith |
US4152529A (en) * | 1977-11-16 | 1979-05-01 | Uop Inc. | Dealkylation of halogenated alkyl substituted phenols |
US4228311A (en) * | 1979-06-08 | 1980-10-14 | Conoco, Inc. | Selective dealkylation of 4-tertiary-alkyl-2,5-xylenol |
FR2469391A1 (en) * | 1979-11-08 | 1981-05-22 | Sumitomo Chemical Co | RESORCINOL DERIVATIVES AND THEIR PREPARATION |
US4690902A (en) * | 1984-02-18 | 1987-09-01 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Method, reagent and kit for the determination of nitrate ions |
US4774368A (en) * | 1987-05-21 | 1988-09-27 | Ethyl Corporation | Process for making meta-alkyl phenols |
DE102007035515A1 (en) | 2007-07-28 | 2009-01-29 | Lanxess Deutschland Gmbh | dialkylphenols |
EP2524906A1 (en) | 2011-05-20 | 2012-11-21 | LANXESS Deutschland GmbH | Method for producing para-thymol |
EP3009417A1 (en) | 2014-10-13 | 2016-04-20 | LANXESS Deutschland GmbH | Improved method for producing para-thymol |
CN108046998A (en) * | 2017-12-25 | 2018-05-18 | 武汉桀升生物科技有限公司 | A kind of preparation method of 3 methyl 4 isopropyl phenol |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2073316A (en) * | 1935-02-18 | 1937-03-09 | Rohm & Haas | Para-tertiary-octyl-nitrophenols |
US2161826A (en) * | 1934-05-28 | 1939-06-13 | Monsanto Chemicals | Alkyl phenol and method of manufacturing same |
US2193760A (en) * | 1937-01-18 | 1940-03-12 | Dow Chemical Co | Method for manufacturing alkyl phenols |
US2221807A (en) * | 1934-10-29 | 1940-11-19 | Dow Chemical Co | Tertiary alkyl halo-phenols |
US2290603A (en) * | 1939-12-27 | 1942-07-21 | Gulf Research Development Co | Recovery of phenols and olefins |
US2297588A (en) * | 1942-03-07 | 1942-09-29 | Gulf Research Development Co | Separation of phenols and alkylated products thereof |
US2403748A (en) * | 1943-12-29 | 1946-07-09 | Sharples Chemicals Inc | Manufacture of 2, 6, di-halo phenols |
-
1947
- 1947-07-03 US US758987A patent/US2603662A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2161826A (en) * | 1934-05-28 | 1939-06-13 | Monsanto Chemicals | Alkyl phenol and method of manufacturing same |
US2221807A (en) * | 1934-10-29 | 1940-11-19 | Dow Chemical Co | Tertiary alkyl halo-phenols |
US2073316A (en) * | 1935-02-18 | 1937-03-09 | Rohm & Haas | Para-tertiary-octyl-nitrophenols |
US2193760A (en) * | 1937-01-18 | 1940-03-12 | Dow Chemical Co | Method for manufacturing alkyl phenols |
US2290603A (en) * | 1939-12-27 | 1942-07-21 | Gulf Research Development Co | Recovery of phenols and olefins |
US2297588A (en) * | 1942-03-07 | 1942-09-29 | Gulf Research Development Co | Separation of phenols and alkylated products thereof |
US2403748A (en) * | 1943-12-29 | 1946-07-09 | Sharples Chemicals Inc | Manufacture of 2, 6, di-halo phenols |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123644A (en) * | 1964-03-03 | Dealkylation of nuclear polyalkyl | ||
US2739171A (en) * | 1951-05-02 | 1956-03-20 | Universal Oil Prod Co | Production of dihydroxy diaryl ethers |
US2767231A (en) * | 1953-03-30 | 1956-10-16 | Sun Oil Co | Separation of polyalkyl aromatic hydrocarbons |
US2807639A (en) * | 1955-05-11 | 1957-09-24 | Dow Chemical Co | 2-halo-4, 6-ditertiaryalkyl phenol esters |
US2831817A (en) * | 1956-08-22 | 1958-04-22 | Ethyl Corp | 3, 6-diisopropyl catechol antioxidant |
US2877210A (en) * | 1957-07-03 | 1959-03-10 | Hercules Powder Co Ltd | 2, 2'-methylenebis |
US3075832A (en) * | 1958-07-30 | 1963-01-29 | Ethyl Corp | Stabilized compositions |
DE1192206B (en) * | 1962-01-05 | 1965-05-06 | Geigy Ag J R | Process for the preparation of 1- (p-oxyphenyl) -aethyl-carbonyl (-2-) compounds |
US3247240A (en) * | 1962-01-05 | 1966-04-19 | Geigy Ag J R | Process for the preparation of carbonyl compounds containing a hindered phenol group |
US3538099A (en) * | 1965-05-17 | 1970-11-03 | Ciba Ltd | 8-quinolyl- and 8-quinaldyl carbamates |
US3465047A (en) * | 1965-12-28 | 1969-09-02 | Sumitomo Chemical Co | Process for producing 2,6-xylenol |
US3530132A (en) * | 1966-02-10 | 1970-09-22 | Ciba Ltd | Water-insoluble anthraquinone dyestuffs |
US3465048A (en) * | 1966-03-08 | 1969-09-02 | Sumitomo Chemical Co | Method for preparing 2,6-xylenol |
US3454654A (en) * | 1967-05-02 | 1969-07-08 | Great Lakes Carbon Corp | Stabilized 2,4-dibromophenol and its production |
US3692846A (en) * | 1969-09-04 | 1972-09-19 | Dow Chemical Co | Rearrangement and disproportionation of lower alkyl phenols |
US4076690A (en) * | 1975-03-10 | 1978-02-28 | Ciba-Geigy Corporation | Phosphonates, process for their manufacture and organic materials stabilized therewith |
US4152529A (en) * | 1977-11-16 | 1979-05-01 | Uop Inc. | Dealkylation of halogenated alkyl substituted phenols |
US4228311A (en) * | 1979-06-08 | 1980-10-14 | Conoco, Inc. | Selective dealkylation of 4-tertiary-alkyl-2,5-xylenol |
FR2469391A1 (en) * | 1979-11-08 | 1981-05-22 | Sumitomo Chemical Co | RESORCINOL DERIVATIVES AND THEIR PREPARATION |
US4690902A (en) * | 1984-02-18 | 1987-09-01 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Method, reagent and kit for the determination of nitrate ions |
US4774368A (en) * | 1987-05-21 | 1988-09-27 | Ethyl Corporation | Process for making meta-alkyl phenols |
DE102007035515A1 (en) | 2007-07-28 | 2009-01-29 | Lanxess Deutschland Gmbh | dialkylphenols |
US20100331579A1 (en) * | 2007-07-28 | 2010-12-30 | Lanxess Deutschland Gmbh | Dialkyl phenols |
US8519193B2 (en) | 2007-07-28 | 2013-08-27 | Lanxess Deutschland Gmbh | Dialkyl phenols |
EP2524906A1 (en) | 2011-05-20 | 2012-11-21 | LANXESS Deutschland GmbH | Method for producing para-thymol |
WO2012159991A1 (en) | 2011-05-20 | 2012-11-29 | Lanxess Deutschland Gmbh | Method for producing parathymol |
EP3009417A1 (en) | 2014-10-13 | 2016-04-20 | LANXESS Deutschland GmbH | Improved method for producing para-thymol |
WO2016058978A1 (en) | 2014-10-13 | 2016-04-21 | Lanxess Deutschland Gmbh | Improved method for preparing para-thymol |
CN108046998A (en) * | 2017-12-25 | 2018-05-18 | 武汉桀升生物科技有限公司 | A kind of preparation method of 3 methyl 4 isopropyl phenol |
CN108046998B (en) * | 2017-12-25 | 2020-09-25 | 武汉桀升生物科技有限公司 | Preparation method of 3-methyl-4-isopropyl phenol |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2603662A (en) | Process for producing substituted hydroxy aromatic compounds | |
US5304688A (en) | Process for the preparation of bishydroxy aromatic compounds | |
US2683751A (en) | Phenol production | |
US2923745A (en) | Ortho alkylation of phenols | |
US4052466A (en) | Process for the preparation of bisphenol-a | |
US2247402A (en) | Aralkyl phenol and method of making it | |
US2507506A (en) | Method and intermediates for production of alkenyl aromatic compounds | |
US2008032A (en) | Method of producing substituted phenols | |
US2204339A (en) | Alkylated phenols and a process of producing them | |
GB2137195A (en) | Preparation of meta-isopropylphenol | |
US2694729A (en) | Process of preparing 2, 2', 4, 4'-tetrahydroxybenzophenone | |
US1955080A (en) | Method of preparing anhydrous alkali metal phenoxides | |
US4009212A (en) | Method for the preparation of meta dihydroxybenzenes | |
US2125310A (en) | Method of alkylating phenols | |
US3032595A (en) | Ortho-alkylation of phenols | |
US3116336A (en) | Alkylation process | |
US3035098A (en) | Method for chlorinating alkylidenebisphenols | |
GB1344965A (en) | Process for the production of thymol | |
US2193760A (en) | Method for manufacturing alkyl phenols | |
Bachmann et al. | The Pinacol—Pinacolone Rearrangement. VII. The Rearrangement of 9, 10-Diaryl-dihydrophenanthrenediols1 | |
US2748161A (en) | Method of forming phthalaldehydic acid from pentachloroxylene | |
Cullinane et al. | Titanium tetrachloride as a catalyst in the Friedel–Crafts reaction. Part III. Alkylation | |
US2726270A (en) | Method for the preparation of tertiary alkyl phenols | |
US3150171A (en) | Production of aromatic carboxylic acids from aralkyl halides | |
US2835707A (en) | Process for making meta-chlorophenol |