Aerobic oxidative deprotection of benzyl-type ethers under atmospheric pressure catalyzed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)/tert-butyl nitrite
作者:Zhenlu Shen、Lili Sheng、Xiaochu Zhang、Weimin Mo、Baoxiang Hu、Nan Sun、Xinquan Hu
DOI:10.1016/j.tetlet.2013.01.045
日期:2013.3
efficient protocol for the oxidative deprotection of benzyl-type ethers has been developed. The reaction was performed with catalytic amounts of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and tert-butyl nitrite (TBN) under atmospheric pressure of O2. Under the optimal reaction conditions, a variety of p-methoxybenzyl (PMB), p-phenylbenzyl (PPB), and benzyl (Bn) ethers can be deprotected to their
已经开发了一种用于苄基型醚的氧化脱保护的简便而有效的方案。在O 2的大气压下,用催化量的2,3-二氯-5,6-二氰基-1,4-苯醌(DDQ)和亚硝酸叔丁酯(TBN)进行反应。在最佳反应条件下,各种对-甲氧基苄基(PMB),对-苯基苄基(PPB)和苄基(Bn)醚可以优异的转化率和选择性脱保护为相应的醇。