Short chain N-alkyl thiamorpholines were first prepared by HT Clarke2 and by Lawson and Reid, 3 by the condensation of mustard gas with primary amines. The preparation of N- cetylthianiorpholine and a number of quaternary ammonium salts (“invert soaps”) derived from it were described 'in a recent publication.* This work has now been extended to include N-alkyl-thiamorpholines having alkyl chains containing 12, 14, 16 and 18 carbons, ...
