Direct access to furan and cyclopropane derivatives via palladium-catalyzed C–H activation/alkene insertion/annulation
作者:Xu Zhang、Mengfan Chang、Xuefeng Xu、Qiang Zhao
DOI:10.1039/d4cc01964d
日期:——
effective palladium-catalyzed C–H activation/alkene insertion/annulation has been reported for the synthesis of furans and cyclopropanes from cyclic 1,3-diketones or 1,3-indandione and diverse alkenes, resulting in moderate to good yields. This protocol demonstrates excellent selectivity and is well-compatible with a wide range of alkene substrates, exhibiting exceptional regioselectivities, high efficiency
Palladium-catalyzed oxidative difunctionalization of enol ethers with 1,3-dicarbonyl compounds to construct trisubstituted furans in one step under mild conditions is described. The reaction is thought to proceed through a C-C bond formation along with a C-O bond closing the ring structure. Oxygen is the sole oxidant regenerating the Pd(II) catalyst.
RAMADAS, S. R.;KRISHNA, M. VIJAYA, PHOSPH. AND SULFUR, 1983, 15, N 3, 311-315