74121-32-7Relevant articles and documents
ELECTROACTIVE MATERIALS
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Page/Page column 101, (2016/05/19)
There is disclosed a compound having Formula (I), Formula (II), Formula (III), Formula (VIII), Formula (IX), or Formula (X) The variables are described in detail in the application.
SYNTHESIS AND TRANSFORMATIONS OF 2,7-DISUBSTITUTED BENZOTHIENOBENZOTHIOPHENES
Zherdeva, S. Yu.,Barudi, A.,Zheltov, A. Ya.,Stepanov, B. I.
, p. 383 - 390 (2007/10/02)
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.