title: Catalyst-dependent divergent synthesis of pyrroles from 3-alkynyl imine derivatives: a noncarbonylative and carbonylative approach.
abstract: A novel Ru(0)- and Rh(I)-catalyzed noncarbonylative and carbonylative cycloisomerization of readily available 3-alkynyl imine derivatives has been developed to provide 3,4-fused or nonfused pyrrole derivatives efficiently in moderate to excellent yields. The key steps involve the formation of a ruthenium carbenoid intermediate or a rhodacycle intermediate, respectively. In these reactions, CO can serve as a ligand or a reagent.
authors: State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Linglin Lu, Shanghai 200032 (China).
authors: Gen-Qiang
authors: GQ
authors: Chen
authors: Xiao-Nan
authors: XN
authors: Zhang
authors: Yin
authors: Y
authors: Wei
authors: Xiang-Ying
authors: XY
authors: Tang
authors: Min
authors: M
authors: Shi
keywords: CC bond activation; pyrrole synthesis; rhodium; ring expansion; ruthenium