6221-88-1Relevant academic research and scientific papers
Alkoxide-Induced Succinate Ester Formation from Alcohols and Bis(trimethylsilyl) 1,2-Bisketene
Egle, Ian,Lai, Wing-Yan,Moore, Patrick A.,Renton, Paul,Tidwell, Thomas T.,Zhao, Da-Chuan
, p. 18 - 25 (1997)
Reaction of the 1,2-bisketene (Me3SiC=C=O)2 (1) with alcohols (ROH) catalyzed by LiOR gives rapid and efficient conversion to mixtures of the meso and dl succinates (Me3SiCHCO2R)2 (4). There is a chan
Alum: An efficient catalyst for trimethylsilylation of alcohols and phenols with hexamethyldisilazane
Yang, Xiaojuan,Liang, Jinying
experimental part, p. 228 - 230 (2012/08/07)
A highly convenient method for the trimethylsilylation of alcohols and phenols via treatment by hexamethyldisilazane in the presence of alum as a catalyst has been developed. A wide variety of hydroxyl groups were selectively protected in CH3CN under mild conditions.
Melamine-trisulfonic-acid-catalyzed trimethylsilylation of alcohols and phenols
Wu, Liqiang,Sun, Pengli,Yan, Fulin
experimental part, p. 2055 - 2060 (2011/11/30)
A highly convenient method for the trimethylsilylation of alcohols and phenols via treatment by hexamethyldisilazane in the presence ofmelamine trisulfonic acid as a catalyst has been developed. A wide variety of hydroxyl groups were selectively protected under solvent-free conditions. Copyright Taylor & Francis Group, LLC.
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.
Catalyst-free silylation of alcohols and phenols by promoting HMDS in CH3NO2 as solvent
Kadam, Santosh T.,Kim, Sung Soo
supporting information; experimental part, p. 94 - 98 (2010/05/18)
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 ex
Facile method for trimethylsilylation of alcohols using hexamethyldisilazane and ammonium thiocyanate under neutral conditions
Jadhav, Vrushali H.,Kumar, K. S. Ajish,Chaudhari, Vinod D.,Dhavale, Dilip D.
, p. 1363 - 1370 (2008/02/01)
A highly efficient method for trimethylsilylation of primary, secondary, tertiary, allylic, and a variety of sugar-derived alcohols using hexamethyldisilazane in the presence of a catalytic amount of ammonium thiocyanate under neutral conditions is reported. Copyright Taylor & Francis Group, LLC.
Deoxygenative dimerization of benzylic and allylic alcohols, and their ethers and esters using lanthanum metal and chlorotrimethylsilane in the presence of a catalytic amount of iodine and copper(I) iodide
Nishino, Toshiki,Nishiyama, Yutaka,Sonoda, Noboru
, p. 635 - 641 (2007/10/03)
Benzylic and allylic alcohols were deoxygenatively dimerized by a treatment with lanthanum metal and chlorotri-methylsilane in the presence of a catalytic amount of iodine, giving the corresponding coupling products, alkanes, in moderate-to-good yields. This dimerization reaction was dramatically accelerated by the addition of a catalytic amount of copper(I) iodide. Similarly, ethers and esters were deoxygenatively dimerized by La/Me3SiCl/cat.I2/cat.CuI system in the presence of a catalytic amount of H2O.
Liquid-Crystalline D-Glucose Dialkyl Acetals and Dodecyl D-Glucofuranosides
Tietze, Lutz F.,Boege, Kai,Vill, Volkmar
, p. 1065 - 1068 (2007/10/02)
Two new systems of liquid crystalline glucose derivatives 5a-d, 6a, b are prepared, studied and compared with reference compounds.The α- and β-D-dodecyl glucofuranosides 6a, b show smectic A phases.The clearing points of the furanosides are of the same magnitude as those of the pyranosides.The alkyl glucose acetals 5a-d show columnar discotic phases.The clearing points are about 30 deg C lower than those of the corresponding thioacetals. - Key Words: Acetals / Amphiphiles / Carbohydrates / Glucosides / Liquid crystals
A Novel Regioselective Desulfation Method Specific to Carbohydrate 6-Sulfate Using Silylating Reagents
Takano, Ryo,Matsuo, Masayoshi,Kamei-Hayashi, Kaeko,Hara, Saburo,Hirase, Susumu
, p. 1577 - 1580 (2007/10/02)
Sulfated primary alcohols and methyl α-D-galactopyranoside 6-sulfate were converted into desulfated and trimethylsilylated alcohols and galactoside, respectively, by treating their pyridinium salts with N,O-bis(trimethylsilyl)acetamide (BTSA) or N,O-bis(trimethylsilyl)trifluoroacetamide (BTSTFA) in pyridine.Sulfated secondary alcohols and methyl galactoside 2-, 3-, and 4-sulfates did not have their sulfates eliminated under similar conditions, indicating that the reaction was specific to the primary hydroxyl groups.Methyl α-galactoside 2-sulfate was preparatively obtained by the BTSA treatment of methyl α-galactoside 2,6-disulfate, that the method is applicable to regioselective desulfation on a preparative scale.
NUCLEOPHILIC CLEAVAGES OF ESTERS AND ETHERS WITH PHENYLTELLUROTRIMETHYLSILANE
Sasaki, Kazuaki,Aso, Yoshio,Otsubo, Tetsuo,Ogura, Fumio
, p. 453 - 456 (2007/10/02)
The title tellurosilane 1 reacted with esters and ethers in the presence of catalytic zinc iodide under very mild conditions, giving the corresponding products with C-telluration and O-silylation via nucleophilic cleavages of the C-O bonds.
