Experimental and Theoretical Studies of a One-Flask Synthesis of 3H-1-Benzazepines from 2-Haloanilines and α,β-Unsaturated Ketones
作者:Keith Ramig、Edyta M. Greer、David J. Szalda、Rabail Razi、Fahima Mahir、Nataliya Pokeza、Wei Wong、Benjamin Kaplan、Joanne Lam、Ayesha Mannan、Christopher Missak、Dat Mai、Gopal Subramaniam、William F. Berkowitz、Prakash Prasad、Sasan Karimi、Ngai Hin Lo、Linas V. Kudzma
DOI:10.1002/ejoc.200901468
日期:2010.4
failure of unsaturated imine 12 to undergo cyclization may indicate that placement of an alkyl group at C3 of the benzazepines may not be possible. Isolation of by-products buttressed by a computational study verifies a postulated multi-step process for benzazepine formation: a [1,5] sigmatropic shift in fluoroimine 3, addition elimination to give carbocation 15, formation of the unstable 5H-1-benzazepine