convenient and high yielding approach for the deprotection and scavenging of the p-methoxybenzyl (PMB) group in PMB ethers and PMB esters was developed using POCl3 as the reagent. 4-Methoxybenzyl chloride, a starting material used for the preparation of PMB ethers and esters was regenerated in the deprotection step. This mild and selective procedure tolerates several acid sensitive functional groups.
以POCl 3为试剂,开发了一种方便,高产的PMB醚和PMB酯中对甲氧基苄基(PMB)脱保护和清除的方法。在去保护步骤中再生了4-甲氧基苄基
氯,其是用于制备PMB醚和酯的原料。这种温和而选择性的程序可以耐受几个酸敏感的官能团。