Atom-Economical Synthesis of <i>N</i>-Heterocycles via Cascade Inter-/Intramolecular C−N Bond-Forming Reactions Catalyzed by Ti Amides
作者:Hao Shen、Zuowei Xie
DOI:10.1021/ja101796k
日期:2010.8.25
Direct and efficient catalytic reactions with excellent regioselectivity for the preparation of a series of substituted isoindoles, isoquinolines, and imidazoles are reported. Reaction of C(6)H(4)(2-CN)C[triple bond]C-R with an array of amines, catalyzed by 10 mol % of [sigma:eta(1):eta(5)-(OCH(2))(Me(2)NCH(2))C(2)B(9)H(9)]Ti(NMe(2)) (1), gives a series of substituted isoindoles in very high yields