Enantioselective Synthesis of Phthalides and Isochromanones via Heck-Matsuda Arylation of Dihydrofurans
作者:Shivashankar Kattela、Emilio C. de Lucca、Carlos Roque D. Correia
DOI:10.1002/chem.201804958
日期:2018.12.3
In this communication, the enantioselective synthesis of phthalides and isochromanones is described through a new palladium‐catalyzed Heck–Matsuda arylation/NaBH4‐reduction/lactonization sequence of 2,3‐ and 2,5‐dihydrofurans in good overall yields and excellent enantioselectivities (up to 98:2 er). This expeditious synthesis of chiral Heck lactol intermediates allowed the diversification of the strategy