Silver(I)-Catalyzed Ring-Contractive Rearrangement: A New Entry to 5-Alkylidene-2-cyclopentenones
作者:Liang Zhao、Jinlian Wang、Hongyan Zheng、Yun Li、Ke Yang、Bin Cheng、Xiaojie Jin、Xiaojun Yao、Hongbin Zhai
DOI:10.1021/ol503176y
日期:2014.12.19
A novel silver(I)-catalyzed ring-contractive rearrangement of 5-substituted 6-diazo-2-cyclohexenones has been developed, providing a new and efficient access to 5-alkylidene-2-cyclopentenones. The AgOTf-catalyzed reaction proceeds through metal–carbenoid formation followed by endocyclic allyl [1,2] migration with excellent stereoselectivity and broad substrate scope.
已经开发了新颖的银(I)催化的5-取代的6-重氮-2-环己烯酮的环收缩重排,为获得5-亚烷基-2-环戊烯酮提供了新的有效途径。AgOTf催化的反应通过形成金属类固醇,然后以优异的立体选择性和较宽的底物范围进行环内烯丙基[1,2]迁移而进行。