METHOD OF PRODUCING HIGH-PURITY LONG-CHAIN CYCLOHEXENONE ALCOHOL Russian patent published in 2020 - IPC C07C45/42 C07C249/16 C07C49/713 C07C49/753 C07C251/84 C07C311/49 

Abstract RU 2729186 C2

FIELD: chemical or physical processes.

SUBSTANCE: present invention relates to a method of producing a long-chain cyclohexenone alcohol represented by formula I, where A is C10-18alkylene, R1, R2 and R3 are each independently methyl, and the method includes the following steps: (1a) a condensation reaction of a crude product of a long-chain cyclohexenone III and hydrazine or derivative thereof R4NHNH2, where R4 is or , R5 is 4-methylphenyl or amino, to obtain compound II, and (1b) hydrolysis of compound II in the presence of an acidic substance to obtain compound I

.

Invention also relates to intermediate compounds and use thereof for producing a compound of formula I.

EFFECT: present invention enables to obtain alcohol of formula I of high degree of purity.

22 cl, 2 tbl, 32 ex

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RU 2 729 186 C2

Authors

Zhang Jian

Jiang Dehui

Shen Xiaojun

Dates

2020-08-05Published

2017-01-22Filed