Several low oxidation state aluminum-containing cluster anions, LAlH- and LAln- (n = 2-4, L = N[Si(Me)3]2), were produced via reactions between aluminum hydride cluster anions, AlxHy-, and hexamethyldisilazane (HMDS). These clusters were characterized by mass spectrometry, anion photoelectron spectroscopy, and density functional theory (DFT) based calculations. Agreement between the experimenta...

We proposed and demonstrated a “refreshable microfluidic channel.” This channel was constructed between two stacked glass slides with a 100 m thick spacer. Each surface of the slides was frosted by being ground with an abrasive and made hydrophobic due to the treatment with 1,1,1,3,3,3-hexamethyldisilazane. A line was drawn on the surface using dimethyl sulfoxide (DMSO) as the ink. Because this...

Trimethylsilylation of alcohols and phenols were carried out under solvent-free conditions with hexamethyldisilazane (HMDS) using LaCoO3 perovskite. LaCoO3 as an efficient catalyst accelerated this reaction under milder condition. The advantages of this method are evident regarding, easy separation, low cost and low catalyst loading, lack of pollution, easy work-up, and selective protection of ...

metalloporphirins; cu(tpp), mn(tpp)cl, co(tpp), fe(tpp)cl, zn(tpp) and mn(obp)cl catalyze region and chemoselective silylation of hydroxyl groups with hmds. fe(tpp)cl is the most effective catalyst and silylation occurs immediately in its presence at room temperature.

Sulfuric acid ([3-(3-silicapropyl)sulfanyl]propyl]ester (SASPSPE) is employed as a recyclable catalyst for the silylation of hydroxyl groups. A good range of primary, secondary alcohols and phenolic hydroxyl groups were effectively converted into their corresponding trimethylsilyl ethers with hexamethyldisilazane in the presence of catalytic amounts of SASPSPE at room temperature with short rea...

Abbreviations : HMDS, 1,1,1,3,3,3-hexamethyldisilazane; TMCS, trimethylchlorosilane; cholesterol, Cholest-5-en-3b-ol; oxysterols, cholesterol oxidation products; 7-ketocholesterol, cholest-5-en-3b-ol-7-one; cholestanetriol, cholestan-3b,5a,6b-triol; a-epoxycholesterol, cholestan-5a,6a-epoxy-3b-ol; 25-hydroxycholesterol, cholest-5-en-3b,25-diol; 7a-hydroxycholesterol, Cholest-5-en-3b,7a-diol; 7b...