Synthesis of tetrachloroisophthalic and-terephthalic aldehydes and stable bis (nitrile oxides) based on them

LI Belen'kii, GP Gromova, BV Lichitskii…

Index: Belen'kii; Gromova; Lichitskii; Krayushkin Russian Chemical Bulletin, 1997 , vol. 46, # 1 p. 101 - 104

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Abstract

Abstract A new route for the synthesis of 2, 4, 5, 6-tetrachloroisophthalic and 2, 3, 5, 6- tetrachloroterephthalic aldehydes from the corresponding tetrachlorobenzenes was developed. The method involves dichloromethylation of the initial compounds with chloroform in the presence of aluminum chloride and subsequent hydrolysis of the resulting 1, 3-bis (dichloromethyl)-2, 4, 5, 6-tetrachlorobenzene and 1, 4-bis (dichloromethyl)-2, 3, 5 ...