Oxidative Cleavage of Silyl Ethers by an Oxoammonium Salt
作者:Nicholas Leadbeater、Jacob Loman、Vincent Pistritto、Christopher Kelly
DOI:10.1055/s-0035-1561498
日期:——
A method for the oxidativecleavage of silyl ethers to their corresponding carbonyl species mediated by an oxoammonium salt is described. The resulting aldehydes and ketones are obtained under mild reaction conditions with no observed overoxidation. For robust substrates, heating to reflux temperatures significantly reduces the reaction time.
One-Pot Bi(OTf)3-Catalyzed Oxidative Deprotection of tert-Butyldimethyl Silyl Ethers with TEMPO and Co-Oxidants
作者:Jean-Michel Vatèle、Bogdan Barnych
DOI:10.1055/s-0030-1260980
日期:2011.9
A sequential one-pot synthesis for the oxidation of primary and secondary tert-butyldimethylsilyl (TBDMS) ethers, using catalytic amounts of metal triflates and TEMPO in combination with PhIO or PhI(OAc)2 in THF or acetonitrile, is described. Acid-sensitive protecting groups such as methylidene, isopropylidene, acetals, and Boc are unaffected under the reaction conditions. Another feature of this procedure
Efficient and chemoselective cleavage of TBS ethers by a sub-stoichiometric amount of decaborane
作者:Yeon Joo Jeong、Ji Hee Lee、Eun Soo Park、Cheol Min Yoon
DOI:10.1039/b201794f
日期:2002.5.10
TBS ethers of aliphatic alcohols in THF–MeOH (or methanol) were deprotected chemoselectively to the corresponding alcohols using a sub-stoichiometric amount of decaborane at rt under nitrogen in high yields.
A Mild and Efficient Desilylation of <i>O</i>-<i>tert</i>-Butyldimethylsilyl Ethers Mediated by Chlorotrimethylsilane and Potassium Fluoride Dihydrate in Acetonitrile
作者:Wei-Dong Li、Yu Peng
DOI:10.1055/s-2006-932474
日期:——
Desilylation of O-tert-butyldimethylsilyl ethers was achieved by a reagent system consisting of chlorotrimethylsilane and potassium fluoridedihydrate in acetonitrile. This alternative desilylation procedure is chemoselective, generally effective and operationally simple, and should find practical applications in organic synthesis.