New Reagents for the Synthesis of Arylmethyl Ethers and Esters
作者:Gregory Dudley、Philip Albiniak
DOI:10.1055/s-0029-1219531
日期:2010.4
developmentof new arylmethyl transfer (benzylation) reagents for protectingoxygen functional groups under relatively mild and neutral conditions.It begins with an investigation of organosiletanes as surrogatehydroxyl groups, which inspired siletane-functionalized benzyl ethersand forced us to confront the difficulties associated with the synthesisof benzyl ethers. The end result is a new series of neutral oxypyridiniumsalts
New Strategies for Protecting Group Chemistry: Synthesis, Reactivity, and Indirect Oxidative Cleavage of <i>para</i>-Siletanylbenzyl Ethers
作者:Sami F. Tlais、Hubert Lam、Sarah E. House、Gregory B. Dudley
DOI:10.1021/jo802229p
日期:2009.3.6
of arylmethyl etherprotectinggroups. The para-siletanylbenzyl (PSB) ether is electronically similar to the benzyl ether. Cleavage of the PSB ether is accomplished under mild conditions—involving alkaline hydrogen peroxide—that are unique among cleavage protocols for arylmethyl ethers. Furthermore, the PSB group affords the user new flexibility in the implementation of protectinggroup strategies that