1-Trimethylsilyltetrazole, 1, has been synthesised from chlorotrimethylsilane and tetrazole in the presence of triethylamine as an auxiliary base. The structure of this compound has been determined in the crystalline phase by X-ray diffraction of a crystal grown in situ. The gas-phase structures of 1 and 1-trimethylsilyl-1,2,4-triazole, 2, have been determined by gas-phase electron diffraction ...

Hierarchically structured carbon-silica aerogel (CSA) composites were synthesized from cheap water glass precursors and granulated activated carbon via a post-synthesis surface modification with trimethylchlorosilane (TMCS) and a low-cost ambient pressure drying procedure. The resultant CSA composites possess micro/mesoporous structure and hydrophobic surface. The adsorption and desorption perf...

In this study, brush type and polymer stationary phases were prepared based on (S)-N-(1-phenylethyl) acrylamide, the polymeric phase demonstrated superior chiral recognition ability. The two synthesized by strategies, one was “grafting from” method, which obtained CSP initiating monomer polymerization surface of 3-methacrylatepropyl silica gel, other to”, fixed copolymer acrylamide trimethoxysi...

Z. Naturforsch. 54 b, 13-17 (1999); received June 1, 1998 Pyridine, 2-Silyl-pyridine, 2-Germyl-pyridine, 2-Stannyl-pyridine, Molecular Structure 5-Methyl-2-trimethylsilyl-pyridine (1) has recently been prepared via the “in situ” Grignard reaction of 1-bromo-5-methyl-pyridine with magnesium and trimethylchlorosilane in refluxing tetrahydrofuran (thf) and structurally characterized. 2-Trimethylge...

W a l t e r M a r i n g g e l e u n d A n t o n M e i l e r * Anorganisch-Chemisches Institut der Universität Göttingen, Lehrstuhl I I , Tammanstraße 4, D-3400 Göttingen Z. Naturforsch. 34b, 969-974 (1979); eingegangen am 11. April 1979 Sulfonamidoboranes, Sulfonamidosilanes, N M R ( 1 1B, i l l ) , MS The reaction of trimethylsilylsulfonamides with halodiorganylboranes leads to the correspondi...

tert-Butoxycarbonylaniline, orf/zo-Lithiation, Chlorophosphines The dilithium salt la formed by ortho-metallation of N-terf-butoxycarbonylaniline (BOCaniline) 1 with two equivalents of ter/-butyllithium reacts with the chlorophosphines Ph3_„PCl„ (n = 1 3) to yield the BOC protected ort/zo-aminophenylphosphines 2 4 in high yields. On deprotection of 2 4 with trimethylchlorosilane in the presence...

Durch Reaktion von Di-w-butylantimonbromid mit Magnesium und Trimethylchlorsilan in Tetrahydrofuran (THF) konnte Herbstmann [1] Di-nbutyl(trimethylsilyl)stibin herstellen. Im Rahmen unserer Untersuchungen zur Synthese von Dialkylund Diaryl(organometall)stibinen [2, 3] wollten wir prüfen, ob sich auf diesem Wege auch Dimethylund Diethyl(trimethylsilyl)stibin herstellen lassen. Bei der Umsetzung ...

Sol-gel synthesis of silica employing the co-precursor trimethylchlorosilane (TMCS) and precursor tetraethylorthosilicate (TEOS) was accomplished. The purpose this investigation to ascertain how pH affected properties synthetic silica. synthesized hydrophobic characterized using FTIR, TGA, GSA determine effect adjustment on functional group characters, thermal properties, pore morphology. ratio...

The 1,3-diaryl-imidazolium chlorides IPr.HCl (aryl = 2,6-diisopropylphenyl), IMes.HCl (aryl = 2,4,6-trimethylphenyl) and IXy.HCl (aryl = 2,6-dimethylphenyl), precursors to widely used N-heterocyclic carbene (NHC) ligands and catalysts, were prepared in high yields (81%, 69% and 89%, respectively) by the reaction of 1,4-diaryl-1, 4-diazabutadienes, paraformaldehyde and chlorotrimethylsilane in d...