Zinc triflate: A mild and efficient catalyst for deprotection of tetrahydropyranyl ethers
作者:R. Srinivasulu、P. V. V. Satyanarayana、K. Ravi Kumar
DOI:10.1134/s1070363213120384
日期:2013.12
Treatment of tetrahydropyranyl (THP) ethers with zinc triflate in methanol provides a simple and efficient process for deprotection of these ethers and the parent alcohols are obtained in excellent yields.
A direct catalytic substitution of various allylic and benzylic alcohols with synthetically useful, but acid-sensitive Boc, Bus, and Dios protected amine nucleophiles, which have not been well utilized for Lewis acid catalysis, with various functionalities (OTBS, OTHP, etc.) was efficiently catalyzed by 1 mol% of Au(III) under mild conditions.