Title:
SYNTHESIS METHOD FOR HEXADECYL 3,5-DI-TERT-BUTYL-4-HYDROXYBENZOATE
Document Type and Number:
WIPO Patent Application WO/2023/123569
Kind Code:
A1
Abstract:
Provided is a synthesis method for hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, comprising the following steps: mixing 3,5-di-tert-butyl-4-hydroxybenzoic acid, tetramethyl ammonium bromide, and methylbenzene to prepare a 3,5-di-tert-butyl-4-hydroxybenzoic acid solution; mixing n-hexadecanol, 4-sulfocalix[6]arene, and methylbenzene to prepare an n-hexadecanol solution; and introducing the 3,5-di-tert-butyl-4-hydroxybenzoic acid solution and the n-hexadecanol solution into a micro-channel reactor at the same time, and carrying out a reaction to obtain the hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate. According to the method, the yield and the selectivity of the hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate can be effectively improved, meanwhile, the reaction condition is mild, the reaction time can be greatly shortened, and the reaction efficiency is improved.
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Inventors:
GUO JIAOYANG (CN)
Application Number:
PCT/CN2022/071953
Publication Date:
July 06, 2023
Filing Date:
January 14, 2022
Export Citation:
Assignee:
JIANGSU JIYI NEW MAT CO LTD (CN)
International Classes:
C07C67/08; C07C67/52; C07C67/54; C07C69/84
Domestic Patent References:
| WO2006054446A1 | 2006-05-26 |
Foreign References:
| CN105541613A | 2016-05-04 | |||
| CN102391124A | 2012-03-28 | |||
| CN110845331A | 2020-02-28 | |||
| US4528395A | 1985-07-09 | |||
| US20040082804A1 | 2004-04-29 |
Attorney, Agent or Firm:
NANJING JUJIANG INTELLECTUAL PROPERTY CO., LTD. et al. (CN)
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