A Facile Mild Deprotection Protocol for 1,3-Dithianes and 1,3-Dithiolanes with 30% Hydrogen Peroxide and Iodine Catalyst in Aqueous Micellar System
作者:Nemai Ganguly、Sujoy Barik
DOI:10.1055/s-0028-1088023
日期:2009.4
A simple clean expeditious protocol for the deprotection of 1,3-dithianes and 1,3-dithiolanes has been developed using 30% aqueous hydrogen peroxide activated by iodine catalyst (5 mol%) in water in the presence of sodium dodecyl sulfate (SDS) under essentially neutral conditions. The method showed tolerance for a number of phenol protecting groups such as allyl, benzyl, TBDMS, TBDPS ethers, phenolic
在十二烷基硫酸钠(SDS)存在下,使用30%的碘催化剂活化的过氧化氢水溶液(5 mol%),已经开发出一种简单,清洁,快速的脱保护1,3-二硫杂环戊烷和1,3-二硫杂环戊烷的方法。在基本上中立的条件下。该方法显示出对许多酚保护基团的耐受性,例如烯丙基,苄基,TBDMS,TBDPS醚,酚醛乙酸酯和苯甲酸酯,以及氨基保护的BOC,Cbz氨基甲酸酯,没有任何可检测的过氧化。 1,3-二硫烷-1,3-二硫杂环戊烷-碘-30%过氧化氢-十二烷基硫酸钠(SDS)