作者:Ian T. Crouch、Timothy Dreier、Doug E. Frantz
DOI:10.1002/anie.201101820
日期:2011.6.27
were synthesized by the title reaction (see scheme; Tf=trifluoromethanesulfonyl). Preliminary studies support a mechanistically distinct pathway that involves an initial β‐hydride elimination from a cationic vinyl palladium(II) intermediate, a subsequent regiospecific hydropalladation of the corresponding allene intermediate, and a final β‐hydride elimination.
染成二烯:通过标题反应合成了1,3-二烯(参见方案; Tf =三氟甲磺酰基)。初步研究支持了一种机理上截然不同的途径,该途径涉及从阳离子乙烯基钯(II)中间体中初步消除β-氢化物,随后对相应的异戊烯中间体进行区域特异性加氢钯化以及最终消除β-氢化物。