Reductive cleavage of N-substituted 2-aryl-1,3-oxazolidines: generation of .alpha.-amino-substituted carbanions
摘要:
The behavior of several N-substituted 2-aryl-1,3-oxazolidines has been investigated under conditions of electron transfer from alkali metals in aprotic solvents. The reduction led to the regioselective cleavage of the benzylic carbon-oxygen bond, with formation of the corresponding N-substituted benzylamino alcohols in good yields. Investigation of the mechanism of this reductive cleavage, with the aid of labeling experiments, showed the intermediate formation of alpha-tertiary amino-substituted carbanions.
The Synthesis of Bis-quaternary Salts of Some 1,7-Phenanthroline Derivatives
作者:Alexander R. Surrey、Arthur J. Olivet、James O. Hoppe
DOI:10.1021/ja01648a046
日期:1954.10
Reductive cleavage of N-substituted 2-aryl-1,3-oxazolidines: generation of .alpha.-amino-substituted carbanions
作者:Ugo Azzena、Giovanni Melloni、Cristina Nigra
DOI:10.1021/jo00076a033
日期:1993.11
The behavior of several N-substituted 2-aryl-1,3-oxazolidines has been investigated under conditions of electron transfer from alkali metals in aprotic solvents. The reduction led to the regioselective cleavage of the benzylic carbon-oxygen bond, with formation of the corresponding N-substituted benzylamino alcohols in good yields. Investigation of the mechanism of this reductive cleavage, with the aid of labeling experiments, showed the intermediate formation of alpha-tertiary amino-substituted carbanions.