REACTION OF 2-MERCAPTOBENZOTHIAZOLE WITH DIAMINES. SYNTHESIS OF O-AMINOBENZENETHIOL
Heating of 2-mercaptobenzothiazole in an excess of hydrazine, ethylenediamine or propylenediamine leads to o-aminobenzenethiol.Moreover, with ethylenediamine, ethylenethiourea is isolated as secondary product.Successive addition-elimination steps rationalize these results. Key words: 2-mercaptobenzothiazole; o-aminobenzenethiol; hydrazine; diamines.