2,3,5,6-tetramethylmorpholine. V. Mechanism study of cyclization of 3,3′-iminobis-2-butanols
作者:Sven Hernestam、Gillis Stenvall
DOI:10.1002/jhet.5570170230
日期:1980.3
The mechanism of cyclization of 3,3′-iminobis-2-butanols to 2,3,5,6-tetramethylmorpholines in sulfuric acid is studied. Contrary to our prior suggestions, the ring closure seems to be exclusively a normal S N 2-type substitution. The partial inversion before the cyclization is discussed.