Zirconium(IV) Chloride Catalyzed New and Efficient Protocol for the Selective Cleavage of <i>p</i>-Methoxybenzyl Ethers
作者:Gangavaram V. Madhava Sharma、Ch Govardhan Reddy、Palakodety Radha Krishna
DOI:10.1021/jo026897v
日期:2003.5.1
of p-methoxybenzyl (PMB) ethers and esters has been developed by use of 20 mol % of zirconium(IV) chloride as Lewis acid in acetonitrile. The present method is very fast, and the conditions are tolerable to a variety of acid/base-sensitive protecting groups and substrates such as carbohydrates, terpenes, and amino acids. The products are obtained in good to high yields.