A simple and efficient procedure for the synthesis of N-sulfinylaldimines (sulfinimines) from sulfinamides and aldehydes is described. The reaction was carried out in the presence of t-BuOK or NaOH. The method is applicable for the synthesis of optically active sulfinimines. (c) 2007 Elsevier Ltd. All rights reserved.
Asymmetric Synthesis of Aziridinyl Phosphonates Using Darzens-Type Reaction of Chloromethyl Phosphonate to Chiral Sulfinimines
作者:Dae Young Kim、Ki Hyung Suh、Jin Seok Choi、Joo Yang Mang、Sung Keun Chang
DOI:10.1080/00397910008087297
日期:2000.1
Darzens-type reaction of chloromethyl phosphonate with (S)-(+)-N-sulfinimines gave (Ss, 2S, 3R)-diethyl 3-aryl-2-N-(p-toluenesulfinyl)aziridinyl-phosphonate (3) in good yields.
Lewis Acid Catalyzed Condensation between Glycine Iminoester Enolates and <i>p</i>-Tolylsulfinimines
作者:Alma Viso、Roberto Fernández de la Pradilla、Ana García、Marta Alonso、Carlos Guerrero-Strachan、Isabel Fonseca
DOI:10.1055/s-1999-2898
日期:——
In the presence of Lewis acids, p-tolylsulfinimines react with glycine iminoester enolates to produce, after cyclization of open-chain intermediates, enantiopure N-sulfinylimidazolidines with good stereoselectivity. The predominant facial outcome of the process is opposite to most known examples involving enolates and sulfinimines. Two of these adducts have been easily transformed into novel non-symmetrical differentially protected vicinal diamines.
A simple and efficient procedure for the synthesis of N-sulfinylaldimines (sulfinimines) from sulfinamides and aldehydes is described. The reaction was carried out in the presence of t-BuOK or NaOH. The method is applicable for the synthesis of optically active sulfinimines. (c) 2007 Elsevier Ltd. All rights reserved.