57044-58-3Relevant articles and documents
Highly efficient and chemoselective trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) catalyzed by reusable electron-deficient [TiIV(salophen)(OTf)2]
Yadegari, Maryam,Moghadam, Majid,Tangestaninejad, Shahram,Mirkhani, Valiollah,Mohammadpoor-Baltork, Iraj
experimental part, p. 332 - 338 (2012/03/12)
In the present work, highly efficient trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) catalyzed by high-valent [Ti IV(salophen)(OTf)2] is reported. Under these conditions, primary, secondary and tertiary alcohols as well as phenols were silylated in short reaction times and high yields. It is noteworthy that this method can be used for chemoselective silylation of primary alcohols in the presence of secondary and tertiary alcohols and phenols. The catalyst was reused several times without loss of its catalytic activity.
Rapid and efficient trimethylsilyl protection of hydroxyl groups catalyzed by niobium(V) chloride
Hou, Jun-Tao,Chen, Hong-Li,Zhang, Zhan-Hui
experimental part, p. 88 - 93 (2011/04/22)
An efficient and convenient procedure for the trimethylsilylation of a wide variety of alcohols, including primary, benzylic, secondary, and phenols with hexamethyldisilazane, has been developed. The reactions were carried out at room temperature in the presence of a catalytic amount of niobium(V) chloride and afforded the corresponding trimethylsilyl ethers in high to excellent yields in short time. Copyright Taylor & Francis Group, LLC.
Formation et stabilite des carbenoides monohalogenes β-ethers
Tarhouni, R.,Kirschleger, B.,Villieras, J.
, p. C1 - C3 (2007/10/02)
The β-alkoxy monohalogenated carbenoids, C6H5CH(OSiMe3)CHXLi, can be obtained by bromine-lithium exchange from the corresponding bromohaloether in the presence of s-butllithium in a mixture of THF/ether/pentane at -130 deg C.The stability of the carbenoid (α-elimination and β-elimination) is described and discussed.