SH aminobenzaldehyde and the dihydrochloride salts of these two derivatives were shown to be identical by ir, nmr, and melting point. Thus the product from the silver nitrate mediated reaction of isobutylene sulfide and methylamine was assigned structure 5, ie, the isomer derived from amine attack at the least substituted carbon atom. 6 By analogy mercaptoethylamines 2, 3, and 4 were assigned structures shown in Table I.
