作者:Kevin Cariou、Emily Mainetti、Louis Fensterbank、Max Malacria
DOI:10.1016/j.tet.2004.06.151
日期:2004.10
1,6 Enyne systems flanked with an acetate group at the propargyl position undergo tandem PtCl2-catalyzed–thermal [3,3] rearrangements leading to trienes. The scope of the transformation has been delineated by varying the nature of the alkynyl substituent R. For R=alkyl or phenyl, a direct 1,3-migration of the acetate group is proposed leading to an allenyl ester intermediate that undergoes a subsequent
1,6在炔丙基位置上带有乙酸酯基团的Enyne系统经历了串联的PtCl 2催化–热[3,3]重排,生成三烯。通过改变炔基取代基R的性质来描述转化的范围。对于R =烷基或苯基,提出了乙酸酯基团的直接1,3-迁移,导致烯丙基酯中间体经历随后的[3]。 ,3]重新排列。