Selective Mono-to Perarylations of Tetrabromothiophene by a Cyclobutene-1, 2-diylbisimidazolium Preligand

…, M Nieger, N Rautzenberg, A Schmidt

Index: Rahimi, Alireza; Schmidt, Andreas Synlett, 2010 , # 9 p. 1327 - 1330

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Citation Number: 19

Abstract

(Cyclobut-1-ene-1, 2-diyl) bis (1-methylimidazolium) tetrafluoroborate is applied as preligand in palladium-catalyzed cross-coupling reactions starting from tetrabromothiophene for the synthesis of mono-, bi-, tri-, and tetraaryl-substituted thiophenes