R. Anacardio et al., PALLADIUM-CATALYZED SELECTIVE CARBONYLATION OF VINYL TRIFLATES IN THEPRESENCE OF 2-IODOPHENOLS - A NEW ROUTE TO 3-SPIRO-FUSED BENZOFURAN-2(3H)-ONES, Synthesis, (7), 1995, pp. 831-836
A convenient synthesis of 3-spiro-fused benzofuran-2(3H)-ones via pall
adium-catalyzed chemoselective carbonylation of vinyl triflates in the
presence of omicron-iodophenols, followed by regioselective intra-mol
ecular Heck reaction, is described.