Polystyrene-Gallium Trichloride Complex: A Mild, Highly Efficient, and Recyclable Polymeric Lewis Acid Catalyst for Chemoselective Silylation of Alcohols and Phenols with Hexamethyldisilazane
作者:Ali Rahmatpour、Ali Vakili、Setare Azizian
DOI:10.1002/hc.21109
日期:2013.11
(HMDS) for the efficientsilylation of alcohols and phenols at room temperature. In this heterogeneous catalytic system, primary, secondary, and tertiaryalcohols as well as phenols were converted to their corresponding trimethylsilyl ethers with short reaction times and high yields under mild reaction conditions. The heterogenized catalyst is of high reusability and stability in the silylation reactions
Cross-linked poly(4-vinylpyridine/styrene) copolymer-supported bismuth(III) triflate: an efficient heterogeneous catalyst for silylation of alcohols and phenols with HMDS
作者:Sang-Hyeup Lee、Santosh T. Kadam
DOI:10.1002/aoc.1809
日期:2011.8
Cross‐linked poly(4‐vinylpyridine/styrene) copolymer‐supported bismuth(III) triflate (30P/S‐Bi) effectively activates hexamethyldisilazane (HMDS) for the silylation of alcohols and phenols. By the use of this heterogeneous catalytic system, a wide range of alcohols as well as phenols are converted into their corresponding trimethylsilyl ethers in high yield under mild reaction conditions. The catalyst was reused
作者:Shuai Pu、Ai Gui Zhang、Shao Feng Zhang、Yu Liang Wang
DOI:10.14233/ajchem.2015.17094
日期:——
C6 acetylenic alcohols are important intermediates in the synthesis of Vitamin A and carotenoids. New synthesis methods of the C6 acetylenic alcohols and their four derivatives are reported. These designed synthesis methods are useful improvement to the present methodologies. Structures of these compounds are confirmed by 1H NMR, IR and mass spectra analysis.
Silylation of hydroxyketones by silicon chlorine derivatives
作者:F. S. Mukhametov、R. M. Eliseenkova、�. E. Korshin
DOI:10.1007/bf00958277
日期:1990.9
The reaction of 3-methyl-3-hydroxy-2-butanone (an alpha-hydroxyketone) with dimethyldichlorosilane gave 2,2,4,4-tetramethyl-5-methylene-1,3,2-dioxasilolane. The silylation of beta-hydroxyketones leads to acyclic mono- and bis(gamma-ketoalkoxy)silanes.
Van Martin; Murray, Desmond H.; Pratt, Norman E., Journal of the American Chemical Society, 1990, vol. 112, # 19, p. 6965 - 6978
作者:Van Martin、Murray, Desmond H.、Pratt, Norman E.、Zhao, Yun-Bo、Albizati, Kim F.