Mild and efficient silylation of alcohols and phenols with HMDS using Bi(OTf)3 under solvent-free condition
作者:Santosh T. Kadam、Sung Soo Kim
DOI:10.1016/j.jorganchem.2009.04.001
日期:2009.7
A very efficient and mildsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) at rt is developed using Bi(OTf)3 as the catalyst. Primary, secondary and tertiary alcohols as well as phenols are excellently converted into corresponding TMS ethers in a very short reaction time. This procedure can also be applied to large scale silylation for industrial application.
Catalyst-free silylation of alcohols and phenols by promoting HMDS in CH<sub>3</sub>NO<sub>2</sub>as solvent
作者:Santosh T. Kadam、Sung Soo Kim
DOI:10.1039/b913398d
日期:——
An uncatalyzed method for the silylation of alcohols and phenols with HMDS in CH3NO2 at rt is developed. A diverse range of aromatic and aliphatic alcohols as well as phenols undergo the silylation in very short reaction time with excellent yield. The uncatalyzed reaction requires neither elevated temperature nor high pressure for the silylation.
Nafion® SAC-13: heterogeneous and reusable catalyst for the activation of HMDS for efficient and selective O-silylation reactions under solvent-free condition
作者:Gurusamy Rajagopal、Hanbin Lee、Sung Soo Kim
DOI:10.1016/j.tet.2009.04.025
日期:2009.6
hexamethyldisilazane (HMDS) for the efficient and selective silylation of alcohols. Primary, secondary, and tertiaryalcohols and phenols are efficiently converted to their corresponding silylethers in short reaction times (4–8 min) with excellent yield at rt under solvent-free condition. Simple and clean reactions, high yield of the products and efficient recycling of the catalyst are the salient features of
Room temperature silylation of alcohols catalyzed by metal organic frameworks
作者:Amarajothi Dhakshinamoorthy、Andrea Santiago-Portillo、Patricia Concepción、José R. Herance、Sergio Navalón、Mercedes Alvaro、Hermenegildo Garcia
DOI:10.1039/c7cy00834a
日期:——
The commercial Al(OH)(BDC) (BDC: 1,4-benzenedicarboxylic acid) metalorganicframework (Basolite A100) is a suitable heterogeneous catalyst for the silylation of benzylic and aliphatic alcohols by hexamethyldisilazane in toluene at roomtemperature. Al(OH)(BDC) is stable under the reaction conditions as evidenced by powder XRD and can be reused with minimal activity decrease.
Gold nanoparticles-catalyzed activation of 1,2-disilanes: hydrolysis, silyl protection of alcohols and reduction of tert-benzylic alcohols
作者:Charis Gryparis、Manolis Stratakis
DOI:10.1039/c2cc35116a
日期:——
Gold nanoparticles supported on TiO2 catalyze under mild conditions the activation of a series of 1,2-disilanes towards hydrolysis and alcoholysis, with concomitant evolution of H2 gas. For the case of tert-benzyl alcohols, the main or only pathway is reduction to the corresponding alkanes.