Convergent, high-yield, regioselective synthesis of substituted benzoquinones from maleoylcobalt complexes and alkynes

LS Liebeskind, JP Leeds, SL Baysdon…

Index: Liebeskind, Lanny S.; Leeds, James P.; Baysdon, Sherrol L.; Iyer, Suresh Journal of the American Chemical Society, 1984 , vol. 106, # 21 p. 6451 - 6453

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Citation Number: 32

Abstract

studies with phthaloylcobalt complexes directed at eliminating the need for AgBF4 in this chemistry, we discovered that the simple expedient of treating the bis (tripheny1phosphine) cobalt complexes with 1 equiv of dimethylglyoxime in pyridine at room temperature gave very high yields of dimethylglyoxime complexes which reacted