SYNTHESIS AND TRANSFORMATIONS OF 2,7-DISUBSTITUTED BENZOTHIENOBENZOTHIOPHENES
A new method was developed for the synthesis of 2,7-disubstituted benzothienobenzothiophenes by the reaction of 4,4'-disubstituted 2,2'-stilbenedisulfonyl chloride with hydriodic acid and subsequent treatment of the reaction products with perbromopyridinium bromide.From 2,7-dinitrobenzothienobenzothiophene a series of new derivatives containing various electron-donating and electron-withdrawing substituents were obtained.
Zherdeva, S. Yu.,Barudi, A.,Zheltov, A. Ya.,Stepanov, B. I.
p. 383 - 390
(2007/10/02)
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