General Methodology for the Preparation of Unsymmetrical α-Linked Bisenones via Ligandless Cross-Coupling Reactions
作者:David R. Williams、Seth A. Bawel
DOI:10.1021/acs.orglett.7b00497
日期:2017.4.7
A stereocontrolled Stille cross-coupling reaction, involving the use of Pd2dba3, provides a general procedure for the synthesis of unsymmetrical α-linked bisenone systems. The transformation is achieved in the absence of phosphine ligands under conditions that promote the stabilization of “ligandless” palladium catalysis. The extension of these studies illustrates Suzuki–Miyaura reactions of 2-bor
涉及使用Pd 2 dba 3的立体控制的Stille交叉偶联反应为合成不对称的α-连接的Bisenone系统提供了一般步骤。在促进“无配体”钯催化作用稳定的条件下,在不存在膦配体的情况下完成转化。这些研究的扩展说明了2-硼基-2-环己烯-1-酮与碘化物和三氟甲磺酸酯伙伴的Suzuki-Miyaura反应,用于合成新型电子缺陷型1,3-二烯。