Oxalyl chloride, (0.5 equiv) was found to cleave the PMB group from alkyl, aryl PMB ethers, and esters to give corresponding alcohol and acid in good yields. This method offers simple and efficient protocol for the selective deprotection of PMB ether and ester in DCE at ambient temperature.
发现
草酰氯(0.5当量)可将PMB基团从烷基,芳基PMB醚和酯中裂解出来,从而以高收率得到相应的醇和酸。该方法为环境温度下DCE中PMB醚和酯的选择性脱保护提供了简单有效的方案。