A remarkably simple α-oximation of aldehydes via organo-SOMO catalysis
作者:Patrizia Gentili、Silvia Pedetti
DOI:10.1039/c2cc31566a
日期:——
A novel α-oximation reaction of unactivated aldehydes has been achieved in excellent yields by reaction with NaNO2âFeCl3 couple and in the presence of pyrrolidine as organocatalyst.
Enantioselective Intramolecular Aldehyde α-Alkylation with Simple Olefins: Direct Access to Homo-Ene Products
作者:Robert J. Comito、Fernanda G. Finelli、David W. C. MacMillan
DOI:10.1021/ja4047312
日期:2013.6.26
A highly selective method for the synthesis of asymmetricallysubstituted carbocycles and heterocycles from unactivated aldehyde-olefin precursors has been achieved via enantioselective SOMO-catalysis. Addition of a catalytically generated enamine radical cation across a pendent olefin serves to establish a general asymmetric strategy toward the production of a wide range of formyl-substituted rings
Mn(III)-based oxidative free radical cyclizations of unsaturated 2-cyclohexenones and aldehydes
作者:Barry B Snider、Eugenia Y Kiselgof
DOI:10.1016/0040-4020(96)00234-7
日期:1996.4
Oxidative free-radical cyclizations of unsaturated 2-cyclohexenones 9a, 9b, 17, and 24 with Mn(OAc)3 afford unsaturated α′-keto radicals such as 10 that cyclize to afford bicyclic products. The major process with 2-cyclohexenone 27 is conjugate addition of acetate to form β-acetoxy α-keto radical 37. Unsaturatedaldehydes 45, 57a, and 57b are oxidized to radicals that cyclize to give cyclopentane- and