A PTC ASSISTED THIONATION: SYNTHESIS OF 2H-1,4- BENZOXAZINE-3(4H)-THIONES & 2h-1,4-BENZOTHIAZINE- 3(4H)-THIONES

S. Srinivas Rao DR. Krishnan Laboratories, Plot No. 99, Prashantnagar, Kukutpally, Hyderabad, 500 072, India

K. S. Chowdary DR. Krishnan Laboratories, Plot No. 99, Prashantnagar, Kukutpally, Hyderabad, 500 072, India

A. Prashant DR. Krishnan Laboratories, Plot No. 99, Prashantnagar, Kukutpally, Hyderabad, 500 072, India

V. S. H. Krishnan DR. Krishnan Laboratories, Plot No. 99, Prashantnagar, Kukutpally, Hyderabad, 500 072, India

Abstract

A facile method for the conversion of 2H-1,4-benzoxa/thiazine-3(4H)-ones to their respective thiones under PTC (P₂S₅/K₂CO₃/TEBA) conditions is reported.

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A PTC ASSISTED THIONATION: SYNTHESIS OF 2H-1,4- BENZOXAZINE-3(4H)-THIONES & 2h-1,4-BENZOTHIAZINE- 3(4H)-THIONES

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A PTC ASSISTED THIONATION: SYNTHESIS OF 2H-1,4- BENZOXAZINE-3(4H)-THIONES & 2h-1,4-BENZOTHIAZINE- 3(4H)-THIONES

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