Bu3SnH Assisted Radical Cyclization Towards the Synthesis of Pyrimidine-annulated Spirocyclic and [6,6] Fused Sulfur Heterocycles
K.C. Majumdar, P.K. Maji and S.K. ChattopadhayayAffiliation:
Department of Chemistry University of Kalyani, Kalyani-741235. W.B. India.
AbstractPyrimidine annulated sulfur heterocycles have been synthesized through tributyltin hydride-mediated radical reaction. This gave straight forward synthesis of tricyclic compound as well as spiro heterocyclic compounds. The reactions have been simple, straight forward and have been carried out in mild conditions.
5-exo-Cyclisation, , 6-endo Cyclization, AIBN, Pyrimidine, sulfur heterocycles, Tributyltin hydride, Radical reaction.
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