Platinum(II)-Catalyzed Generation and [3+2] Cycloaddition Reaction of α,β-Unsaturated Carbene Complex Intermediates for the Preparation of Polycyclic Compounds
作者:Kodai Saito、Hideyuki Sogou、Takuya Suga、Hiroyuki Kusama、Nobuharu Iwasawa
DOI:10.1021/ja108586d
日期:2011.2.2
Pt(II)-catalyzed generation of unsaturated carbene complex intermediates from various propargyl ether derivatives based on electrophilic activation of alkynes was realized. These in situ generated unsaturated carbene complexes undergo [3+2] cycloaddition reaction with various vinyl ethers, leading to efficient formation of indoles, naphthols, and benzofuran fused with a five-membered ring in high yields
基于炔烃的亲电活化,实现了 Pt(II) 催化从各种炔丙基醚衍生物生成不饱和卡宾配合物中间体。这些原位生成的不饱和卡宾配合物与各种乙烯基醚发生 [3+2] 环加成反应,从而以高产率有效形成与五元环稠合的吲哚、萘酚和苯并呋喃。