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■ Microwave Mediated Synthesis of 3,4,4a,11a-Tetrahydro-5-phenyl/5-(4’-substituted phenyl)-2H-indeno[1,2-b]pyrano[3,2-e]pyran-6(5H)-ones

Som N. Dhawan, Mamta Sharma, Sunita Bajaj, Kusum Sharma, and Somesh Sharma*

*Department of Chemistry, Kurukshetra University, Kurukshetra-132119, Haryana, India

Abstract

Synthesis of 3,4,4a,11a-tetrahydro-5-phenyl/5-(4’-substituted phenyl)-2H-indeno[1,2-b]pyrano[3,2-e]pyran-6(5H)-ones have been reported under microwave conditions. The substrates for this being 2-benzylideneindane-1,3-dione (1) and 3,4-dihydro-2H-pyran (2); the product formation is governed by inverse Diels-Alder reaction conditions.