A new route to 3,4-dihydro-2H-1-benzopyrans substituted at 3-position via palladium-catalysed reactions

Synthesis of (±) homoisoflavanone and corresponding homoisoflavane

“…However, to date, only a few synthetic methods for the preparation of homoisoflavanes have been documented [21]. Moreover, to the best of our knowledge, the straightforward approach to homoisoflavanes from homoisoflavonoids, a family of compounds that could be synthesized conveniently, had never been reported.…”