Synthesis of tetraaryl-p-benzoquinones by Suzuki–Miyaura cross-coupling reactions of tetrabromo-p-benzoquinone

I Ullah, RA Khera, M Hussain, A Villinger, P Langer

Index: Ullah, Ihsan; Khera, Rasheed Ahmad; Hussain, Munawar; Villinger, Alexander; Langer, Peter Tetrahedron Letters, 2009 , vol. 50, # 32 p. 4651 - 4653

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Citation Number: 17

Abstract

Transition metal-catalyzed cross-coupling reactions of polyhalogenated molecules are of considerable current interest. 15 Recently, we have reported the synthesis of aryl-substituted thiophenes, 16 pyrroles, 17 and selenophenes 18 based on regioselective Suzuki–Miyaura reactions of tetrabromothiophene, tetrabromo-N-methylpyrrole, and tetrabromoselenophene, respectively. Transition metal-catalyzed cross-coupling reactions of tetrabromo- and ...