Synthesis of multi-substituted dihydrofurans <i>via</i> palladium-catalysed coupling between 2,3-alkadienols and pronucleophiles
作者:Hirokazu Tsukamoto、Kazuya Ito、Takayuki Doi
DOI:10.1039/c8cc02589d
日期:——
Multi-substituted dihydrofurans were obtained from a palladium-catalysed coupling reaction between 2,3-alkadienols and ketones bearing an electron-withdrawing group at the α-position. Methanol as a solvent was essential for the initial dehydrative substitution to suppress the competitive hydroalkylation of the diene moiety. The substitution would be followed by intramolecular hydroalkoxylation under