High Pressure Diels-Alder Reactions of 2-Vinyl-3,4-Dihydronaphthalene. Synthesis of Cyclopenta- and IndenoPhenanthrenones

Article abstract of DOI:10.1016/0040-4020(95)00504-2

A new shorter synthesis of 2-vinyl-3,4-dihydro-naphthalene has been described.The Diels-Alder reactions of this diene with 4-acetoxy-2-cyclopenten-1-one, 3-bromoindan-1-one and inden-1-one under high pressure conditions are reported.A two step synthesis of cyclopenta- and indenophenanthrenones is discussed.Structure analysis by 1H and 13C NMR spectroscopy is presented.