SYNTHESIS OF TETRAHYDROBENZO[b]PYRAN DERIVATIVES USING SODIUM TRIFLUOROMETHANE SULPHONATE AS AN EFFICIENT CATALYST

A Shekhar, D Dey, D Deo Pathak
2011 Int. J. Chem. Sci   unpublished
An efficient and convenient approach to the synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran derivatives using sodium trifluoromethanesulphonate as a catalyst is described. This method provides several advantages such as neutral conditions, high yields and simple work procedure.
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