REACTIONS OF 2-MERCAPTO-8H-CYCLOHEPTA[d]THIAZOL-8-ONE WITH ALKYL HALIDES AND ACETYLENIC COMPOUNDS

Abstract

The reactions of 2-mercapto-8H-cyclohepta[d]thiazol-8-one (1) with alkyl halides and relared halogeno-compounds gave 2-S-substituted 8H-cyclohepta[d]thiazol-8-ones 3a–g in good yields. In the presence of sodium hydride, 3-N-substituted compounds 4a, e were also isolated as minor products, besides the products 3a, e. The reactions with acetylenic compounds gave 2-S-ethenyl-substituted products 6a–c.

Key Words:

• 2-mercapto-8H-cyclohepta[d]thiazol-8-one
• alkyl halide
• reactive acetylene
• substitution reaction