Thermal 1,3-Trityl Migrations in Diels−Alder Domino Reactions of 1-Trityl-4-vinyl-1<i>H</i>-imidazoles
作者:Lynsey J. Cotterill、Ross W. Harrington、William Clegg、Michael J. Hall
DOI:10.1021/jo100416c
日期:2010.7.2
migrations, in disagreement with previously published reports. These migrations are a key step in several highly diastereoselective domino reaction sequences (Diels−Alder, [1,3]-H shift, [1,3]-trityl migration and Diels−Alder, [1,3]-H shift, [1,3]-trityl migration, Michael reaction) leading to architecturally complex molecules.
在热条件下,三苯甲基咪唑已显示出受空间驱动的N→N三苯甲基迁移,这与先前发表的报告不同。这些迁移是几个高度非对映选择性的多米诺骨牌反应序列(Diels-Alder,[1,3] -H移位,[1,3]-三苯甲基迁移和Diels-Alder,[1,3] -H移位,[ 1,3]-三苯甲基迁移,迈克尔反应)导致结构复杂的分子。