Preparative method for carboxylic acids

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United States of America Patent

PATENT NO 10167246
APP PUB NO 20170369412A1
SERIAL NO

15532957

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Abstract

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A preparative method for carboxylic acids is disclosed in the present invention. The method is characterized in that: compounds (II) are reacted in the presence of hydrogen peroxide and base to produce target products (I), as represented by the following reaction scheme: wherein R1 is aryl, pyridyl, pyrimidyl, pyridazinyl, pyrazinyl, benzothienyl, benzofuranyl, quinolinyl, isoquinolinyl, thiadiazolyl, C1-6 alkyl, C3-6 cycloalkyl, C2-6 alkenyl, C2-6 alkynyl and hydrogen; R2 is alkoxycarbonyl, alkylaminocarbonyl, aminocarbonyl, alkylthiolcarbonyl, cyano, sulfonyl, sulfinyl, carbonyl, aldehyde, carboxyl, nitro, alkyl and hydrogen; R3 is alkoxycarbonyl, alkyl amido carbonyl, aminocarbonyl, cyano, sulfonyl, sulfinyl, carbonyl, carboxyl and nitro. The present invention has the following main benefits: cheap and readily available starting materials, safe processes, high yield, good quality, which facilitates industrial production.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG ZHUJI UNITED CHEMICALS CO LTD310052 NO 603 BIN KANG ROAD HANGZHOU ZHEJIANG BINJIANG DISTRICT HANGZHOU CITY ZHEJIANG PROVINCE 310052

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cai, Guoping Zhejiang, CN 3 0
Chen, Bangchi Zhejiang, CN 17 1
Lu, Jianxin Zhejiang, CN 28 132
Shi, Jieping Zhejiang, CN 4 100
Su, Yehua Zhejiang, CN 3 0
Yu, Xiaohua Zhejiang, CN 27 99
Zhang, Tianhao Zhejiang, CN 16 42

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