Cyclization of .ALPHA.- and .BETA.-alkylthio-substituted amines possessing positively charged carbon at the nitrogen. A new synthetic method for thiazolidines, thiomorpholines and dihydro-1,4-benzothiazines.
Molybdenum(VI) and molybdenum(V) complexes with N,N'-dimethyl-N,N'-bis(2-mercaptophenyl)ethylenediamine. Electrochemical and electron paramagnetic resonance models for the molybdenum(VI/V) centers of the molybdenum hydroxylases and related enzymes
Molybdenum(VI) and molybdenum(V) complexes with N,N'-dimethyl-N,N'-bis(2-mercaptophenyl)ethylenediamine. Electrochemical and electron paramagnetic resonance models for the molybdenum(VI/V) centers of the molybdenum hydroxylases and related enzymes
作者:Dulal Dowerah、Jack T. Spence、Raghuvir Singh、Anthony G. Wedd、Graham L. Wilson、Frank Farchione、John H. Enemark、John Kristofzski、Michael Bruck
DOI:10.1021/ja00253a016
日期:1987.9
Cyclization of .ALPHA.- and .BETA.-alkylthio-substituted amines possessing positively charged carbon at the nitrogen. A new synthetic method for thiazolidines, thiomorpholines and dihydro-1,4-benzothiazines.
The present paper describes the finding that α- and β-alkylthio-substituted amines possessing a positively charged carbon such as =CHPh, CO2R and CH2SR at the nitrogen undergo cyclization in the presence of lithium diisopropylamide or sodium hydride leading to thiazolidines, thiomorpholines and dihydro-1, 4-benzothiazines.