Synthesis of bicyclic cyclopentanols by photoreductive cyclization of .delta.,.epsilon.-unsaturated ketones
作者:D. Belotti、J. Cossy、J. P. Pete、C. Portella
DOI:10.1021/jo00372a018
日期:1986.10
BELOTTI D.; COSSY J.; PETE J. P.; PORTELLA C., J. ORG. CHEM., 51,(1986) N 22, 4196-4200
作者:BELOTTI D.、 COSSY J.、 PETE J. P.、 PORTELLA C.
DOI:——
日期:——
Ketyl−Allene Cyclizations Promoted by Samarium(II) Iodide
作者:Gary A. Molander、Elizabeth Pollina Cormier
DOI:10.1021/jo047887s
日期:2005.4.1
Samarium(II) iodide has proven to be an effective reagent for intramolecular reductive coupling reactions. Previous investigations of intramolecular ketyl−olefin coupling reactions provided carbocycles in excellent yield and good diastereoselectivity. This method has been extended to ketyl cyclizations with allenes. Substrates leading to both carbocycles and heterocycles in a selective manner are explored