Nickel Boride–Mediated Cleavage of 1,3-Dithiolanes: A Convenient Approach to Reductive Desulfurization

Abstract

1,3-Dithiolanes are rapidly cleaved by nickel boride, generating corresponding hydrocarbons in excellent yields. The hydrogenolysis is rapid at room temperature and does not require protection from the atmosphere. Mild reaction conditions, simple workup, and good yields of pure products are some of the major advantages of the procedure.

Keywords:

• Desulfurization
• 1,3-dithiolanes
• nickel boride
• reduction
• S,S acetals/ketals

ACKNOWLEDGMENTS

Financial assistance for the project by the University Grants Commission [Project No. F-32-203/2006 (SR)] and a junior research fellowship to D. M. by the Council of Scientific and Industrial Research are gratefully acknowledged.

Notes

^a The isolated product was identified as n-propyl benzene.