A novel and efficient Pd-catalyzed intermolecular [3 + 2] carbocyclization of alkynols and electron-deficient alkynes for the synthesis of halo-cyclopentadienes (Cps) has been developed. The present protocol employs simple propargyl alcohols as the C3 group to participate in the cyclization reaction, providing a highly convenient and atom-economical entry to the halo-cyclopentadiene framework.
开发了一种新颖且高效的Pd催化的分子间[3 + 2]碳环化反应,涉及炔醇和缺电子
炔烃,用于合成卤代
环戊二烯(Cps)。该方案采用简单的炔丙基醇作为C3组分参与环化反应,为卤代
环戊二烯骨架提供了一种极为方便且原子经济的合成途径。