In the search for agents that offer chemical protection against radiation effects in animal tissue much interest has centered around 2-aminoethanethiol, its derivatives, and other amin0thiols.~~ 3 This paper reports the synthesis of a number of 2-mercaptoethylated amines and amino alcohols via thiolethylation with ethylene sulfide. Several routes are available for the synthesis of 2-aminoethanethiols starting with S-blocked compounds ...