The reaction of the anion of benzothiazole-2-thiol (MBT) with activated olefins in the presence of sodium hydride with Michael reaction acceptors produced 3-substituted benzothiazoline-2-thiones. Similarly, the Mannich reaction of MBT anion with formaldehyde and primary or secondary amines produced the N-(or 3-) substituted benzothiazoline-2- thiones. Possible mechanisms and supporting nmr, ir, and uv data are discussed. The N ...
