straightforward procedure for the synthesis of HFIP esters-containing 2H-benzopyrans has been established through palladium-catalyzed one-pot cyclization/carbonylation reaction of substituted propargyl ethers with HFIP by using formic acid as the CO precursor. A diverse set of 2H-benzopyrans have been formed with HFIP esters as attractive functional groups in moderate to excellent yields. This protocol features
通过使用
甲酸作为 CO 前体,取代的
炔丙基醚与 HFIP 进行
钯催化一锅环化/羰基化反应,建立了一种有效且简单的合成含 2H-苯并
吡喃 HFIP 酯的方法。以 HFIP 酯作为有吸引力的官能团,以中等至优异的产率形成了多种 2H-苯并
吡喃。该协议具有广泛的底物范围和不操作有毒 CO 气体的特点。