Synthetic Pathway of [2,4-Dichloro-6-(3,5-dichloro-2-hydroxybenzamido)phenoxy]acetic Acid

被引：0
|
作者：
Dudarev, V. G. [1 ]
Vasendin, M. I. [1 ]
Moskvin, A. V. [1 ]
机构：
[1] St Petersburg State Chem & Pharmaceut Univ, St Petersburg 197022, Russia
来源：
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY | 2024年 / 60卷 / 07期
关键词：
salicylanilides; reduction of nitro group; alkylation of nitrophenols; interphase catalysis; acylation; protecting groups; SALICYLANILIDES; DERIVATIVES; INHIBITORS;
D O I：
10.1134/S1070428024070029
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
ynthetic route of 3,5-dichlorosalicylic acid anilide containing the carboxymethoxy group in the aniline fragment in ortho-position to amide group has been suggested. The obtained intermediate (2,4-dichloro-6-nitrophenoxy)-N,N-dimethylacetamide has been reduced into the amine and acylated with 3,5-dichloro-2-hydroxybenzoyl chloride, and then protective N,N-dimethylamide group has been selectively hydrolyzed in an alkaline medium. Without protection of the carboxyl group, the reaction with 3,5-dichloro-2-hydroxybenzoyl chloride has afforded mainly 6,8-dichloro-2H-1,4-benzoxazin-3(4H)-one.
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收藏
页码：1157 / 1163
页数：7
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