Palladium-Catalyzed Insertion of α-Diazoesters into Vinyl Halides To Generate α,β-Unsaturated γ-Amino Esters
作者:Romas Kudirka、Sean K. J. Devine、Christopher S. Adams、David L. Van Vranken
DOI:10.1002/anie.200805483
日期:2009.5.4
As easy as 1, 2, 3: A palladium‐catalyzed three‐component coupling generates α,β‐unsaturated γ‐amino acids in a single step (see scheme). The reaction is believed to involve migration of a vinyl substituent to a highly electrophilic palladium carbene. Unlike previous synthetic approaches, this synthesis provides access to γ‐amino acids with non‐natural side chains.
就像1,2,3一样简单:钯催化的三组分偶联在一个步骤中生成α,β-不饱和γ-氨基酸(请参见方案)。认为该反应涉及乙烯基取代基向高亲电性钯卡宾的迁移。与以前的合成方法不同,该合成方法可获取具有非天然侧链的γ-氨基酸。