Hypervalent organoantimony compounds 12-ethynyl-tetrahydrodibenz [c, f][1, 5] azastibocines: Highly efficient new transmetallating agent for organic halides

…, Y Tobiyasu, S Yasuike, K Yamaguchi, H Seki…

Index: Kakusawa, Naoki; Tobiyasu, Yoshinori; Yasuike, Shuji; Yamaguchi, Kentaro; Seki, Hiroko; Kurita, Jyoji Journal of Organometallic Chemistry, 2006 , vol. 691, # 13 p. 2953 - 2968

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Citation Number: 27

Abstract

Extremely efficient and high-speed ethynylation of acyl chlorides, aryl iodides and bromides was demonstrated by palladium-catalyzed cross-coupling reaction of Nt-butyl-Sb-ethynyl-5, 6, 7, 12-tetrahydrodibenz [c, f][1, 5] azastibocine under mild conditions. Optimization and generalization of the hypervalent antimony-mediated coupling reaction are presented in detail. Single-crystal X-ray analysis of the N-methyl-1, 5-azastibocine revealed that the ...

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