CN103012092A - 一种选择性催化分子氧氧化水杨醇制备水杨醛的方法 - Google Patents
一种选择性催化分子氧氧化水杨醇制备水杨醛的方法 Download PDFInfo
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- CN103012092A CN103012092A CN2012105703076A CN201210570307A CN103012092A CN 103012092 A CN103012092 A CN 103012092A CN 2012105703076 A CN2012105703076 A CN 2012105703076A CN 201210570307 A CN201210570307 A CN 201210570307A CN 103012092 A CN103012092 A CN 103012092A
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- bromate
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- sodium
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- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 title claims abstract description 91
- SMQUZDBALVYZAC-UHFFFAOYSA-N salicylaldehyde Chemical compound OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 30
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 229910001882 dioxygen Inorganic materials 0.000 title claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 51
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- BSURNBPIYYGUGJ-UHFFFAOYSA-N Br(=O)(=O)O.Br Chemical compound Br(=O)(=O)O.Br BSURNBPIYYGUGJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 6
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims abstract description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 5
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 38
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical group [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 30
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical group [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 30
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methyl-cyclopentane Natural products CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 22
- 238000004821 distillation Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 17
- 238000010025 steaming Methods 0.000 claims description 17
- 238000005292 vacuum distillation Methods 0.000 claims description 17
- 235000010288 sodium nitrite Nutrition 0.000 claims description 15
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 12
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 6
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Inorganic materials [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 claims description 5
- 239000012046 mixed solvent Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 claims description 4
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004304 potassium nitrite Substances 0.000 claims description 4
- 235000010289 potassium nitrite Nutrition 0.000 claims description 4
- XWNSFEAWWGGSKJ-UHFFFAOYSA-N 4-acetyl-4-methylheptanedinitrile Chemical compound N#CCCC(C)(C(=O)C)CCC#N XWNSFEAWWGGSKJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004153 Potassium bromate Substances 0.000 claims description 3
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 claims description 3
- 229940094037 potassium bromate Drugs 0.000 claims description 3
- 235000019396 potassium bromate Nutrition 0.000 claims description 3
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical group ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- XUXNAKZDHHEHPC-UHFFFAOYSA-M sodium bromate Chemical group [Na+].[O-]Br(=O)=O XUXNAKZDHHEHPC-UHFFFAOYSA-M 0.000 claims description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical class [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 10
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 150000002736 metal compounds Chemical class 0.000 abstract description 2
- 229910000510 noble metal Inorganic materials 0.000 abstract description 2
- VUZNLSBZRVZGIK-UHFFFAOYSA-N 2,2,6,6-Tetramethyl-1-piperidinol Chemical group CC1(C)CCCC(C)(C)N1O VUZNLSBZRVZGIK-UHFFFAOYSA-N 0.000 abstract 1
- 150000002826 nitrites Chemical class 0.000 abstract 1
- 229910052723 transition metal Inorganic materials 0.000 abstract 1
- 150000003624 transition metals Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 description 38
- SCHDBBKGIUZRCC-UHFFFAOYSA-L [Br-].[Na+].Br(=O)(=O)[O-].[Na+] Chemical compound [Br-].[Na+].Br(=O)(=O)[O-].[Na+] SCHDBBKGIUZRCC-UHFFFAOYSA-L 0.000 description 27
- 238000004587 chromatography analysis Methods 0.000 description 16
- 238000001035 drying Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 16
- 229920006395 saturated elastomer Polymers 0.000 description 16
- 239000011734 sodium Substances 0.000 description 16
- 238000005160 1H NMR spectroscopy Methods 0.000 description 15
- 238000003756 stirring Methods 0.000 description 15
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 14
- 239000003921 oil Substances 0.000 description 13
- CRWJEUDFKNYSBX-UHFFFAOYSA-N sodium;hypobromite Chemical compound [Na+].Br[O-] CRWJEUDFKNYSBX-UHFFFAOYSA-N 0.000 description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 8
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000007013 Reimer-Tiemann formylation reaction Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000010970 precious metal Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical group [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- CUBCNYWQJHBXIY-UHFFFAOYSA-N benzoic acid;2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC=C1.OC(=O)C1=CC=CC=C1O CUBCNYWQJHBXIY-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- UAVRLWYOSSWIMI-UHFFFAOYSA-L potassium sodium bromate bromide Chemical compound [Na+].Br(=O)(=O)[O-].[K+].[Br-] UAVRLWYOSSWIMI-UHFFFAOYSA-L 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 238000001308 synthesis method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- WPVXOOFOWPVFTK-UHFFFAOYSA-N (2-formylphenyl) nitrate Chemical compound [O-][N+](=O)OC1=CC=CC=C1C=O WPVXOOFOWPVFTK-UHFFFAOYSA-N 0.000 description 1
- HUJOGFUFUMBXPL-UHFFFAOYSA-N (2-methylphenyl) dihydrogen phosphate Chemical compound CC1=CC=CC=C1OP(O)(O)=O HUJOGFUFUMBXPL-UHFFFAOYSA-N 0.000 description 1
- WDCYWAQPCXBPJA-UHFFFAOYSA-N 1,3-dinitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1 WDCYWAQPCXBPJA-UHFFFAOYSA-N 0.000 description 1
- NUGOTBXFVWXVTE-UHFFFAOYSA-N 2-hydroxy-3-nitrobenzaldehyde Chemical compound OC1=C(C=O)C=CC=C1[N+]([O-])=O NUGOTBXFVWXVTE-UHFFFAOYSA-N 0.000 description 1
- IHFRMUGEILMHNU-UHFFFAOYSA-N 2-hydroxy-5-nitrobenzaldehyde Chemical compound OC1=CC=C([N+]([O-])=O)C=C1C=O IHFRMUGEILMHNU-UHFFFAOYSA-N 0.000 description 1
- KYNSBQPICQTCGU-UHFFFAOYSA-N Benzopyrane Chemical compound C1=CC=C2C=CCOC2=C1 KYNSBQPICQTCGU-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 229940073608 benzyl chloride Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
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- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000003963 dichloro group Chemical group Cl* 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
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- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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- JRTYPQGPARWINR-UHFFFAOYSA-N palladium platinum Chemical class [Pd].[Pt] JRTYPQGPARWINR-UHFFFAOYSA-N 0.000 description 1
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- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
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- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
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- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明涉及一种选择性催化分子氧氧化水杨醇制备水杨醛的方法,属于催化剂技术领域。以水杨醇为原料,使用的催化剂由以下部分组成:(A)2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO)、4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基或4-乙酰基2,2,6,6-四甲基哌啶-N-氧自由基;(B)溴化盐-溴酸盐组合;(C)亚硝酸盐;(D)硫酸、盐酸、硝酸或磷酸,在空气气氛中,10~80℃下进行催化氧化反应。本发明具有以下优点:(1)反应条件温和,催化活性高,反应效率高,产物选择性高。(2)催化体系避免了过渡金属尤其是贵金属化合物的使用,成本低,安全方便,污染小。(3)使用的无机组分溴化盐-溴酸盐组合和亚硝酸盐,价廉易得,反应后处理容易进行。
Description
技术领域
本发明涉及水杨醛的制备方法,尤其涉及一种选择性催化分子氧氧化水杨醇制备水杨醛方法。
背景技术
水杨醛(Salicylaldehyde),又名为邻羟基苯甲醛,是一种用途较广的精细化工产品,广泛用于农药、医药、整合剂的生产;低浓度的水杨醛具有很强的抑制细菌活性的能力,可用于防腐剂;在塑料树脂行业可作为稳定剂;在香料行业中用于合成香豆素而被广泛应用于肥皂、洗涤剂、调合香料、糖果和烟草工业中;水杨醛可与多种金属形成螯合剂,在电镀工业水杨醛作为一种增亮剂和均化剂;在石油工业中,水杨醛的许多加成物可提高燃料油、汽油和石油的高温稳定性。水杨醛与硝酸反应制得的3-硝基水杨醛、5-硝基水杨醛、3、5-二硝基水杨醛等硝基水杨醛类都是染料的中间体;水杨醛及其衍生物是吲哚啉、苯并吡喃类有机感光材料的原料,并可合成耐久的毛发整理剂。
天然的水杨醛主要存在于从绣绒菊柚植物中分离出的香精油中,远远满足不了人类的需求。目前,合成水杨醛的方法较多,从原料的角度来看,主要分为以下几种:
(1)以苯酚为原料的Reimer-Tiemann法;
(2)以邻甲酚为原料的合成法;
(3)以水杨酸为原料的电化学法;
(4)以水杨醇为原料的合成法。
传统的Reimer-Tiemann法(Chem.Review.1960,(60):1969-1984),以苯酚为原料,在碱性介质中苯酚电离成负子,在氯仿的作用下,首先形成氯苄,然后迅速水解成醛,经盐酸酸化,再经水蒸气蒸馏挥发出水杨醛。该法操作简单,原料易得,但是反应收率降低,氯仿,碱消耗量大,含酚废水不易处理是此反应的严重缺点。尽管Reimer-Tiemann法改进的方案层出不穷,如改用甲醇(US3365500)或二醇,胺,芳烃的混合物(JP4303829)作反应介质;提高反应压力和温度(US432992);在反应体系中加入相转移催化剂(EP747276,EP68725)等,但仍存在产率低、成本高、副产物多的缺点。
以邻甲酚为原料制备水杨醛多采用将侧链氯化后水解得到产品的方法。有光气法、三氯氧磷氯化法(US3641158,US3314998)、甲醛法(DE2923805,EP77279)等。光气法存在危险大、环境不友好的缺点,故在工业上使用较少。而三氯氧磷法是邻甲酚与三氯氧磷在氧化镁存在下,进行酯化反应,生成三(邻甲基苯基)磷酸酯。在热引发下,通入氯气,进行侧链二氯代,生成三(邻二氯次甲基苯基)磷酸酯。最后将二氯代物水解得到水杨醛。粗产品经减压蒸馏得到纯品。但该方法存在三氯氧磷酯化程度不易控制,生产成本较高,消耗的POCl3和C12对设备造成腐蚀,较大的环境污染问题。甲醛法工艺简单,反应流程短。但存在的缺点是甲醛需过量,反应过程中的催化剂SnCl2和SnCl4或者是金属铬,锆,钛化合物毒性大,易造成重金属污染,且需大量的有机胺作助催化剂以及需有机溶剂,造成了产品分离的难度。
水杨酸电解还原可制得水杨醛,控制反应条件可使羧基有选择地进行阴极还原而得到醛基。该法电流效率和转化率不高,且阴极电解液组成复杂,必须在反应体系中加入添加剂(CN101008086A),以提高电流效率和转化率。该法因对环境污染小、副反应少、产品纯度高、工艺简单等特点使其已用于工业生产,并有了一定规模,但是其缺点是投资大,能耗大,经济效益不好。
以水杨醇为原料制取水杨醛的方法主要有水杨醇催化氧化法。传统催化剂为钯系、铂系催化剂,该系列催化剂催化效率高,副反应少,但贵金属催化剂用量大,从文献报道看,对该法的改进主要集中于催化剂的优选方面,其中,较为重要的是:美国专利(US4026950)报道,钯铂系列催化剂的催化氧化效率高,并指出在该催化剂体系中加入金属钇作为助催化剂可以提高催化氧化反应速度和产物收率(96%)。美国专利(US2864748)报道用铬、铁等非贵重金属作催化剂,水杨醛收率56%,但副产物多。日本专利(JP5561)报道用铅、铋、银等金属的无机盐作催化剂,产率达76%,但重金属催化剂的流失对环境污染很大。德国专利(DE4104835A)报道在二甲基亚砜或二甲基甲酰胺溶剂中以钒作催化剂,产率89%,但反应中需耗用大量的反应溶剂。中科院大连化物所也曾报道(CN89105025.6)以非贵重金属锰、铜的有机化物作反应过程的催化剂,产率可达97%。
发明内容
本发明的目的在于克服现有水杨醛制备方法中产率低、成本高、副产物多、污染严重等技术问题,而提供一种选择性催化分子氧氧化水杨醇制备水杨醛的方法。
本发明的目的技术方案为:一种选择性催化分子氧氧化水杨醇制备水杨醛的方法,其具体步骤如下:
水杨醇:A:B:C:D依摩尔比1:0.01:(0.01~0.1):(0.01~0.1):(0.015~0.15),溶于混合溶剂中,在空气或氧气气氛下10~80℃反应7~24小时,用气相色谱分析产物组成,反应结束后,反应混合物用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏即得到产物水杨醛;其中A,B,C,D为催化剂组分,A为2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO)或其衍生物;B为溴化盐-溴酸盐组合;C为亚硝酸盐;D为硫酸、盐酸、硝酸或磷酸。
优选催化剂组分A为2,2,6,6-四甲基哌啶-N-氧自由基、4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基或4-乙酰基2,2,6,6-四甲基哌啶-N-氧自由基。
优选溴化盐-溴酸盐组合中溴化盐与溴酸盐的摩尔比为3~5:1;其中溴化盐为溴化钠或溴化钾;溴酸盐为溴酸钠或溴酸钾。
优选亚硝酸盐为亚硝酸钠或亚硝酸钾。
优选混合溶剂为有机溶剂与水的混合物,有机溶剂与水的体积比为1:(0.1~0.5);其中有机溶剂为1,2-二氯乙烷,二氯甲烷,氯仿,乙腈,四氢呋喃,乙酸乙酯,苯,甲苯,二甲苯,氟苯或氯苯中的一种;混合溶剂的用量一般为水杨醇质量的8~15倍。
优选A:B:C:D的摩尔比为1:(4~8):(4~8):(6~12),最优选A:B:C:D的摩尔比为1:(5~8):(5~8):(4.5~7.5)。
本发明的选择性催化分子氧氧化水杨醇制备水杨醛的方法,水杨醇与催化剂组分依摩尔比水杨醇:A:B:C:D=1:0.01:(0.01~0.1):(0.01~0.1):(0.015~0.15)。
有益效果:
(1)反应条件温和,催化活性高,反应效率高,反应选择性好;
(2)用空气或氧气作为氧化剂,符合绿色化学的要求;
(3)催化体系避免了过渡金属化合物尤其是贵金属化合物的使用,成本低,安全方便,污染小;
(4)使用的无机组分溴化盐-溴酸盐组合和亚硝酸盐,价廉易得,反应后处理容易进行。
具体实施方式
实施例1
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.048:0.08:0.075,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.021g(0.2mmol)NaBr,0.0063g(0.04mmol)NaBrO3,5ml 1,2-二氯乙烷,0.5ml水,滴加0.018ml浓硫酸,搅拌5分钟,然后加入0.0276g(0.4mmol)NaNO2,在空气气氛下25℃反应7小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.59g,产率:96%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例2
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:盐酸的摩尔比为1:0.01:0.04:0.08:0.06,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.016g(0.16mmol)NaBr,0.0063g(0.04mmol)NaBrO3,5ml二氯甲烷,1ml水,滴加0.014ml盐酸,搅拌15分钟,然后加入0.0276g(0.4mmol)NaNO2,在氧气气氛下10℃反应12小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.56g,产率:91%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例3
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.01:0.1:0.015,其中溴化钠-溴酸钠组合的摩尔比为3:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.0039g(0.0375mmol)NaBr,0.0019g(0.0125mmol)NaBrO3,5ml乙腈,0.5ml水,滴加0.004ml浓硫酸,搅拌10分钟,然后加入0.035g(0.5mmol)NaNO2,在空气气氛下80℃反应15小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.53g,产率:87%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例4
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.1:0.01:0.09,其中溴化钠-溴酸钠组合的摩尔比为4:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.039g(0.375mmol)NaBr,0.019g(0.125mmol)NaBrO3,5ml乙酸乙酯,1ml水,滴加0.022ml浓硫酸,搅拌20分钟,然后加入0.0035g(0.05mmol)NaNO2,在空气气氛下50℃反应11小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.54g,产率:88%,1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例5
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钾:硫酸的摩尔比为1:0.01:0.08:0.08:0.12,其中溴化钠-溴酸钾组合的摩尔比为4:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.033g(0.32mmol)NaBr,0.014g(0.08mmol)KBrO3,5ml四氢呋喃,0.5ml水,滴加0.029ml浓硫酸,搅拌8分钟,然后加入0.034g(0.4mmol)KNO2,在氧气气氛下20℃反应9小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.55g,产率:91%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例6
投料比如下:水杨醇:4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基:溴化钠-溴酸钠组合:亚硝酸钠:硝酸的摩尔比为1:0.01:0.019:0.08:0.03,其中溴化钠-溴酸钠组合的摩尔比为3:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.014g(0.05mmol)4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基,0.011g(0.073mmol)NaBr,0.0038g(0.024mmol)NaBrO3,5ml苯,0.5ml水,滴加0.007ml硝酸,搅拌16分钟,然后加入0.0276g(0.4mmol)NaNO2,在空气气氛下30℃反应10小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.54g,产率:88%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例7
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钾-溴酸钾组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.03:0.05:0.045,其中溴化钠-溴酸钠组合的摩尔比为4:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.014g(0.12mmol)KBr,0.005g(0.03mmol)KBrO3,5ml甲苯,0.5ml水,滴加0.006ml浓硫酸,搅拌10分钟,然后加入0.017g(0.25mmol)NaNO2,在空气气氛下15℃反应17小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.53g,产率:87%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例8
投料比如下:水杨醇:4-乙酰基2,2,6,6-四甲基哌啶-N-氧自由基:溴化钾-溴酸钠组合:亚硝酸钠:磷酸的摩尔比为1:0.01:0.06:0.04:0.09,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.01g(0.05mmol)4-乙酰基2,2,6,6-四甲基哌啶-N-氧自由基,0.03g(0.26mmol)KBr,0.0068g(0.049mmol)NaBrO3,5ml氟苯,0.5ml水,滴加0.005ml磷酸,搅拌20分钟,然后加入0.014g(0.5mmol)NaNO2,在空气气氛下60℃反应9小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.54g,产率:89%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例9
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.04:0.03:0.06,其中溴化钠-溴酸钠组合的摩尔比为4:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.016g(0.16mmol)NaBr,0.0063g(0.04mmol)NaBrO3,5ml氯苯,0.5ml水,滴加0.014ml浓硫酸,搅拌18分钟,然后加入0.01g(0.15mmol)NaNO2,在空气气氛下40℃反应20小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛0.55g,产率:90%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例10
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.06:0.05:0.09,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.025g(0.24mmol)NaBr,0.0076g(0.048mmol)NaBrO3,5ml二甲苯,0.5ml水,滴加0.022ml浓硫酸,搅拌15分钟,然后加入0.017g(0.25mmol)NaNO2,在空气气氛下35℃反应10小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛:0.58g,产率:95%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例11
投料比如下:水杨醇:4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基:溴化钠-溴酸钠组合:亚硝酸钾:硫酸的摩尔比为1:0.01:0.07:0.05:0.075,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.014g(0.05mmol)4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基,0.017g(0.16mmol)NaBr,0.005g(0.032mmol)NaBrO3,5ml1,2-二氯乙烷,0.5ml水,滴加0.18ml浓硫酸,搅拌15分钟,然后加入0.021g(0.25mmol)KNO2,在空气气氛下40℃反应10小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛:5.7g,产率:94%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例12
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.05:0.05:0.075,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.017g(0.16mmol)NaBr,0.005g(0.032mmol)NaBrO3,5ml 1,2-二氯乙烷,2.5ml水,滴加0.18ml浓硫酸,搅拌15分钟,然后加入0.017g(0.25mmol)NaNO2,在空气气氛下40℃反应10小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛:5.7g,产率:94%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例13
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.05:0.07:0.09,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在50ml锥形瓶中加入0.62g(5mmol)水杨醇,0.0078g(0.05mmol)TEMPO,0.017g(0.16mmol)NaBr,0.005g(0.032mmol)NaBrO3,5ml氯仿,0.5ml水,滴加0.022ml浓硫酸,搅拌20分钟,然后加入0.024g(0.35mmol)NaNO2,在空气气氛下70℃反应10小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛:0.58g,产率:95%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例14
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.05:0.08:0.075,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在250ml锥形瓶中加入6.2g(50mmol)水杨醇,0.078g(0.5mmol)TEMPO,0.21g(2mmol)NaBr,0.063g(0.4mmol)NaBrO3,50ml1,2-二氯乙烷,5ml水,滴加0.18ml浓硫酸,搅拌10~30分钟,然后加入0.276g(4mmol)NaNO2,在空气气氛下常温反应7~24小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛:5.8g,产率:95%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
实施例15
投料比如下:水杨醇:2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO):溴化钠-溴酸钠组合:亚硝酸钠:硫酸的摩尔比为1:0.01:0.05:0.08:0.075,其中溴化钠-溴酸钠组合的摩尔比为5:1:
在1L锥形瓶中加入62g(0.5mol)水杨醇,0.078g(5mmol)TEMPO,0.21g(20mmol)NaBr,0.063g(4mmol)NaBrO3,500ml 1,2-二氯乙烷,50ml水,滴加1.8ml浓硫酸,搅拌20~60分钟,然后加入2.76g(40mmol)NaNO2,在空气气氛下常温反应7~24小时,用气相色谱分析产物组成。反应结束后,反应液用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏,收集84~86℃左右的馏分。得产物水杨醛:57g,产率:93%。ESI-MS=122.09;1HNMR(400MHz,CDCl3,TMS,δppm):11.01(s,1H),9.90(s,1H),7.57~7.51(m,1H),7.26~7.22(m,1H),7.04~6.98(m,1H),6.84~6.82(d,J=7.6Hz,1H);IR(KBr)cm-1:3419.54(-OH),1657.47(-CHO),1267.85(-CH2-)。
Claims (5)
1.一种选择性催化分子氧氧化水杨醇制备水杨醛的方法,其具体步骤如下:水杨醇:A:B:C:D依摩尔比1:0.01:(0.01~0.1):(0.01~0.1):(0.015~0.15),溶于混合溶剂中,在空气或氧气气氛下10~80℃反应7~24小时,反应结束后,反应混合物用饱和Na2S2O3溶液洗,酸化后经萃取,干燥,然后进行常压蒸馏,蒸除溶剂,再改用减压蒸馏装置进行蒸馏即得到产物水杨醛;其中A,B,C,D为催化剂组分,A为2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO)或其衍生物;B为溴化盐-溴酸盐组合;C为亚硝酸盐;D为硫酸、盐酸、硝酸或磷酸。
2.根据权利要求1所述的方法,其特征在于催化剂组分A为2,2,6,6-四甲基哌啶-N-氧自由基、4-苯甲酰基-2,2,6,6-四甲基哌啶-N-氧自由基或4-乙酰基2,2,6,6-四甲基哌啶-N-氧自由基。
3.根据权利要求1所述的方法,其特征在于溴化盐-溴酸盐组合中溴化盐与溴酸盐的摩尔比为3~5:1;其中溴化盐为溴化钠或溴化钾;溴酸盐为溴酸钠或溴酸钾。
4.根据权利要求1所述的方法,其特征在于亚硝酸盐为亚硝酸钠或亚硝酸钾。
5.根据权利要求1所述的方法,其特征在于:所述的混合溶剂为有机溶剂与水的混合物,有机溶剂与水的体积比为1:(0.1~0.5);其中有机溶剂为1,2-二氯乙烷,二氯甲烷,氯仿,乙腈,四氢呋喃,乙酸乙酯,苯,甲苯,二甲苯,氟苯或氯苯中的一种。
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CN111393272A (zh) * | 2020-04-21 | 2020-07-10 | 惠泽化学科技(濮阳)有限公司 | 一种3’-甲基苯丙酮的合成方法 |
CN112778108A (zh) * | 2021-01-14 | 2021-05-11 | 惠泽化学科技(濮阳)有限公司 | 一种4-取代基环己酮的合成方法 |
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