A Highly Efficient Synthesis of 1-Alkylidene-1,3-Dihydroisobenzofurans and 3-Alkylidene Isobenzofuran-1 (3H)-ones(phthalides) through Palladium-Copper Catalysis using Acetylenic Carbinols als Synthons - Khan, M Wahab; Kundu, Nitya G (Synlett, 1999)