作者:Thomas Fallon、Diane E. J. E. Robinson、Anthony C. Willis、Michael N. Paddon-Row、Michael S. Sherburn
DOI:10.1002/chem.200902190
日期:2010.1.18
Allene towards efficiency: Two new rings, six stereocentres and four CC bonds are generated in synthetically useful yields by double dehydro‐Diels–Alder reactions of readily available 1,5‐dien‐3‐ynes and alkenic dienophiles. Computational studies support a mechanism for this often highly stereoselective process involving two concerted cycloaddition events and a 1,2‐cyclohexadiene intermediate (see
丙二烯朝效率:两个新的环,六个立体中心和四号丙 C键中由容易得到的1,5-二烯-3-炔和亲二烯体alkenic双脱氢狄尔斯-阿尔德反应合成有用的产率生成。计算研究为这种经常具有高度立体选择性的过程提供了一种机制,该过程涉及两个协同的环加成反应和一个1,2-环己二烯中间体(请参见方案)。