EP1268391A1 - Verfahren zur herstellung von carbonsäurebenzylestern - Google Patents
Verfahren zur herstellung von carbonsäurebenzylesternInfo
- Publication number
- EP1268391A1 EP1268391A1 EP01917097A EP01917097A EP1268391A1 EP 1268391 A1 EP1268391 A1 EP 1268391A1 EP 01917097 A EP01917097 A EP 01917097A EP 01917097 A EP01917097 A EP 01917097A EP 1268391 A1 EP1268391 A1 EP 1268391A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- dibenzyl ether
- carried out
- carboxylic acid
- reaction
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical class C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims description 34
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 150000008064 anhydrides Chemical class 0.000 claims description 7
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 6
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims description 6
- 150000001735 carboxylic acids Chemical class 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims description 6
- 239000003377 acid catalyst Substances 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000004821 distillation Methods 0.000 claims description 4
- 229910015900 BF3 Inorganic materials 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 3
- 239000002841 Lewis acid Substances 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 150000007517 lewis acids Chemical class 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- QUKGYYKBILRGFE-UHFFFAOYSA-N benzyl acetate Chemical compound CC(=O)OCC1=CC=CC=C1 QUKGYYKBILRGFE-UHFFFAOYSA-N 0.000 description 40
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 27
- 229940007550 benzyl acetate Drugs 0.000 description 20
- 239000011541 reaction mixture Substances 0.000 description 16
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 235000011054 acetic acid Nutrition 0.000 description 9
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- -1 alkali metal acetates Chemical class 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 235000019260 propionic acid Nutrition 0.000 description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 2
- 229940073608 benzyl chloride Drugs 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- XYHKNCXZYYTLRG-UHFFFAOYSA-N 1h-imidazole-2-carbaldehyde Chemical compound O=CC1=NC=CN1 XYHKNCXZYYTLRG-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- WLJVXDMOQOGPHL-PPJXEINESA-N 2-phenylacetic acid Chemical compound O[14C](=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-PPJXEINESA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M 3-Methylbutanoic acid Natural products CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 229960004365 benzoic acid Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N beta-methyl-butyric acid Natural products CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229910000043 hydrogen iodide Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000010656 jasmine oil Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- WLJVXDMOQOGPHL-UHFFFAOYSA-N phenylacetic acid Chemical class OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/24—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran
Definitions
- the invention relates to a process for the preparation of carboxylic acid benzyl esters from dibenzyl ether.
- Benzyl acetate the main component of jasmine oil, is an important fragrance for the production of fragrance compositions and the starting product for the production of fruit ethers.
- Benzyl acetate has been reported several times. For example, the production of benzyl acetate by reacting benzyl alcohol with acetic acid has been known for a long time.
- Benzyl acetate can also be prepared by reacting benzyl chloride with alkali metal acetates, if appropriate in the presence of phase transfer reagents (Wang et al., Chem. Eng. Com un.
- DD-A5-286 577 describes the preparation of benzyl acetate by reacting dibenzyl ether with acetic anhydride.
- the drastic ones are disadvantageous
- the dibenzyl ether used in the process according to the invention is an unsubstituted or substituted dibenzyl ether which, for example, has one or more substituents from the series of branched or straight-chain C r C 6 alkyl, C r C 6 alkoxy, CN, CO (C r can carry C 6 ) -alkyl, NO 2 or halogen.
- substituents are methyl, methoxy or chlorine.
- An unsubstituted dibenzyl ether is particularly preferably used.
- Dibenzyl ether or dibenzyl ether / benzyl alcohol mixtures such as are obtained, for example, in the production of benzyl alcohol from benzyl chloride, can be used in the process according to the invention.
- Dibenzyl ether / benzyl alcohol mixtures of dibenzyl ether can be, for example, from 50 to 100% by weight, preferably from 60 to 100% by weight, particularly preferably from 70 to 100% by weight.
- the carboxylic acids used in the process according to the invention are straight-chain or branched alkyl, aryl or aralkyl carboxylic acids which are saturated or unsaturated and have 1 to 50 C atoms, preferably 2 to 30 C atoms, particularly preferably 2 to 10 C atoms Contain atoms.
- Lauric acid, myristic acid, stearic acid, oleic acid, acrylic acid, cinnamic acid, phenylacetic acid, benzoic acid or salicylic acid can be used.
- Particularly preferred carboxylic acids are acetic acid and propionic acid.
- the process according to the invention is preferably carried out with removal of the formed
- Water performed The removal of the water by distillation or by passing an inert gas such as nitrogen is suitable.
- Dehydrating agents for example zeolites, aluminum oxides or clays, are preferably used to remove the water formed.
- the water formed is particularly preferably removed by reacting the reaction in the presence of the corresponding anhydride of the carboxylic acid used as dehydrating Funds.
- Very particularly preferred anhydrides are acetic anhydride and propionic anhydride.
- strong inorganic acids such as, for example, sulfuric acid, hydrogen chloride, hydrogen bromide, hydrogen iodide, hydrofluoric acid, perchloric acid or are preferably used as homogeneous acid catalysts
- Phosphoric acid strong organic acids such as trifluoroacetic acid, methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, 4-toluenesulfonic acid, chlorosulfonic acid or trifluoromethanesulfonic acid and Lewis acids such as boron trifluoride, aluminum chloride, zinc chloride, tin chloride, titanium chloride or iron chloride.
- Preferred homogeneous acidic catalysts are sulfuric acid, trifluoromethanesulfonic acid, 4-toluenesulfonic acid and boron trifluoride.
- the homogeneous acid catalyst is preferably used in an amount of 10 -5 to 1 equivalents, particularly preferably 10 " 4 to 1 equivalents, very particularly preferably 5 x 10" 4 to 1 equivalents, based on dibenzyl ether.
- the temperature at which the process according to the invention is carried out is preferably 15 to 200 ° C., particularly preferably 25 to 190 ° C., very particularly preferably 30 to 180 ° C.
- the pressure required is then at least equal to the vapor pressure of the reaction mixture. It can be up to about 50 bar, preferably up to 25 bar.
- the process according to the invention is preferably carried out with thorough mixing of the reactants.
- Intensive mixing can be achieved in various ways known to those skilled in the art, for example by stirring, nozzles, baffles, static mixers, pumps, turbulent flows in narrow tubes and by ultrasound.
- the process according to the invention is preferably carried out under a conventional protective gas such as nitrogen, helium or argon.
- the process according to the invention can be carried out batchwise, continuously or partially continuously.
- the process according to the invention gives benzyl carboxylates in good yields with high conversion and good selectivity.
- the method according to the invention can be carried out in a simple manner without high expenditure on equipment.
- the starting materials with the catalyst can be placed in a reaction vessel.
- the reaction preferably takes place with thorough mixing and the presence of inert gas.
- the workup can be carried out by adding a water-immiscible solvent, preferably toluene, to the reaction mixture. After separation of the organic phase, which contains the reaction product, this can be separated by distillation.
- Example 2 was carried out analogously to Example 1. 60.0 g (1.0 mol)
- Example 3 was carried out analogously to Example 1.
- the reaction temperature was 120 ° C.
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 67 to
- Example 4 was carried out analogously to Example 1. 90.0 g (1.5 mol) of acetic acid and 0.5 g of trifluoromethanesulfonic acid were used. The reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 52 to
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 83 to 3.
- Example 6 was carried out analogously to example 5. 15.0 g (0.25 mol)
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 32 to
- Example 7 was carried out analogously to example 5. 6.0 g (0.1 mol) of acetic acid were used, the reaction time was 3 hours. The reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 75 to Example 8
- Example 8 was carried out analogously to example 5. 0.1 g of trifluoromethanesulfonic acid was used, the reaction temperature was 25 ° C.
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 77 to 5.
- Example 9 was carried out analogously to example 5. 0.5 g of boron trifluoride diethyl etherate was used.
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 74 to
- Example 10 was carried out analogously to example 5. There were 37.0 g (0.5 mol) of propionic acid, 65.1 g (0.5 mol) of propionic anhydride and 0.5 g of conc. Sulfuric acid used, the reaction time was 7 hours.
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 73 to 15.
- Example 11 was analogous to Example 1 but with a mixture of 79.3 g (0.4 mol)
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 68 to
- Example 12 was carried out analogously to Example 11 but with 0.5 g of trifluoromethanesulfonic acid.
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 75 to
- Example 13 was carried out analogously to example 5 but without a catalyst.
- the reaction mixture contained benzyl acetate and dibenzyl ether in a ratio of 1 to 94.
- Example 14 was carried out analogously to example 5.
- the reaction temperature was 110 ° C, the reaction time 4 hours.
- the mixture was neutralized with sodium carbonate, filtered and the reaction mixture was separated by distillation.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10015659 | 2000-03-29 | ||
| DE10015659A DE10015659A1 (de) | 2000-03-29 | 2000-03-29 | Verfahren zur Herstellung von Carbonsäurebenzylestern |
| PCT/EP2001/003141 WO2001072682A1 (de) | 2000-03-29 | 2001-03-19 | Verfahren zur herstellung von carbonsäurebenzylestern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1268391A1 true EP1268391A1 (de) | 2003-01-02 |
Family
ID=7636870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01917097A Withdrawn EP1268391A1 (de) | 2000-03-29 | 2001-03-19 | Verfahren zur herstellung von carbonsäurebenzylestern |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6800780B2 (de) |
| EP (1) | EP1268391A1 (de) |
| JP (1) | JP2003528843A (de) |
| AU (1) | AU2001244211A1 (de) |
| DE (1) | DE10015659A1 (de) |
| WO (1) | WO2001072682A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10141830A1 (de) * | 2001-08-27 | 2003-03-20 | Bayer Ag | Verfahren zur Herstellung von Carbonsäurebenzylestern |
| DE10218243A1 (de) * | 2002-04-24 | 2003-11-06 | Bayer Ag | Verfahren zur Herstellung von Benzylalkoholen |
| DE10226040A1 (de) * | 2002-06-12 | 2003-12-24 | Bayer Ag | Verfahren zur Herstellung von Carbonsäurebenzylestern |
| DE10243200A1 (de) * | 2002-09-18 | 2004-04-08 | Bayer Ag | Verfahren zur Herstellung von Carbonsäurebenzylestern |
| JP5124260B2 (ja) * | 2007-12-21 | 2013-01-23 | 東京応化工業株式会社 | 化合物の製造方法 |
| US11300390B1 (en) | 2018-03-05 | 2022-04-12 | Dynamic Structures And Materials, Llc | Control surface deployment apparatus and method of use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2030835A (en) | 1934-10-26 | 1936-02-11 | Union Carbide & Carbon Corp | Preparation of esters |
| US2197798A (en) | 1935-09-04 | 1940-04-23 | Jr Henry B Gans | Method of producing esters |
| US3510511A (en) | 1966-06-06 | 1970-05-05 | Rhone Poulenc Sa | Process for the production of organic esters |
| JPS63150245A (ja) | 1986-12-12 | 1988-06-22 | Idemitsu Kosan Co Ltd | カルボン酸エステルの製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE286577C (de) |
-
2000
- 2000-03-29 DE DE10015659A patent/DE10015659A1/de not_active Withdrawn
-
2001
- 2001-03-19 WO PCT/EP2001/003141 patent/WO2001072682A1/de not_active Ceased
- 2001-03-19 EP EP01917097A patent/EP1268391A1/de not_active Withdrawn
- 2001-03-19 US US10/239,718 patent/US6800780B2/en not_active Expired - Fee Related
- 2001-03-19 JP JP2001570597A patent/JP2003528843A/ja active Pending
- 2001-03-19 AU AU2001244211A patent/AU2001244211A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2030835A (en) | 1934-10-26 | 1936-02-11 | Union Carbide & Carbon Corp | Preparation of esters |
| FR794715A (fr) | 1934-10-26 | 1936-02-24 | Carbide & Carbon Chem Corp | Procédé de fabrication d'esters organiques |
| US2197798A (en) | 1935-09-04 | 1940-04-23 | Jr Henry B Gans | Method of producing esters |
| US3510511A (en) | 1966-06-06 | 1970-05-05 | Rhone Poulenc Sa | Process for the production of organic esters |
| JPS63150245A (ja) | 1986-12-12 | 1988-06-22 | Idemitsu Kosan Co Ltd | カルボン酸エステルの製造方法 |
Non-Patent Citations (2)
| Title |
|---|
| CLARK G.S.: "Benzyl Acetate", PERFUMER & FLAVORIST, vol. 14, September 1989 (1989-09-01) - October 1989 (1989-10-01), pages 25,26,28 - 30,32,34, XP002956776 |
| See also references of WO0172682A1 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030125578A1 (en) | 2003-07-03 |
| JP2003528843A (ja) | 2003-09-30 |
| DE10015659A1 (de) | 2001-10-04 |
| WO2001072682A1 (de) | 2001-10-04 |
| US6800780B2 (en) | 2004-10-05 |
| AU2001244211A1 (en) | 2001-10-08 |
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