Chemoselective Protection of Hydroxyl Groups and Deprotection of Silyl Ethers
作者:Babasaheb P. Bandgar、Suhas P. Kasture
DOI:10.1007/s007060170051
日期:2001.9
Trimethylsilylation of alcohols and phenols is carried out using hexamethyldisilazane and LiClO4 under microwave irradiation and neutral conditions. The deprotection of silyl ethers is carried out similarly using natural kaolinitic clay and a few drops of water.
Silylation of Alcohols and Phenols Using Hexamethyldisilazane Catalyzed by <i>N,N</i>’-Diiodo-<i>N,N</i>’-1,2-ethanediyl Bis(<i>p</i>-toluenesulfonamide) Under Solvent-Free and Microwave Conditions
作者:Ramin Ghorbani-Vaghei、Seyedeh Mina Malaekehpoor
DOI:10.1080/10426500902849581
日期:2010.2.23
N,N′-Diiodo-N,N′-1,2-ethanediyl bis(p-toluenesulfonamide) (NIBTS) is an effective catalyst for the silylation of alcohols and phenols using hexamethyldisilazane undersolvent-free and microwave conditions. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.
Efficient and practical protocol for silylation of hydroxyl groups using reusable lithium perchlorate dispread in silica gel under neutral condition
作者:Najmedin Azizi、Rozbeh Yousefi、Mohammad R. Saidi
DOI:10.1016/j.jorganchem.2005.11.005
日期:2006.2
for the trimethylsilylation of a wide variety of alcohols, including primary, allylic, benzylic, secondary, hindered secondary, tertiary, and phenols with hexamethyldisilazane on the surface of silica gel dispersed with LiClO4 in room temperature at few minutes in excellent yields under neutral conditions is reported. This procedure also allows the excellent selectivity under LP-SiO2 system for silylation
Electron-deficient vanadium(IV) tetraphenylporphyrin: A new, highly efficient and reusable catalyst for chemoselective trimethylsilylation of alcohols and phenols with hexamethyldisilazane
nadium(IV) trifluoromethanesulfonate, [VIV(TPP)(OTf)2], in the trimethylsilylation of alcohols and phenols with hexamethydisilazane (HMDS) is reported. This new V(IV) catalyst was used as an efficientcatalyst for silylation of not only primary alcohols but also sterically hindered secondary and tertiaryalcohols with HMDS. Trimethylsilylation of phenols with HMDS was also performed to afford the desired
Use of Silylated Formiates as Hydrosilane Equivalents
申请人:Commissariat a l'Energie Atomique et aux Energies Alternatives
公开号:US20210292345A1
公开(公告)日:2021-09-23
The present invention relates to a method for preparing organic compounds of formula (I) by reaction between a silylated formiate of formula (II) and an organic compound in the presence of a catalyst and optionally of an additive.
The invention also relates to use of the method for preparing organic compounds of formula (I) for the preparation of reagents for fine chemistry and for heavy chemistry, as well as in the production of vitamins, pharmaceutical products, adhesives, acrylic fibres, synthetic leathers, and pesticides.