2212-11-5Relevant articles and documents
Synthesis and properties of functionalized alkylalkoxysilanes
Lebedev,Minas’yan,Abramkin,Sheludyakov,Kuzmina,Lebedeva,Surikov,Rybakov
, p. 1859 - 1863 (2016/10/04)
A method of chloroalkylalkoxysilanes synthesis scalable to pilot production has been proposed. Morpholinotrialkoxysilanes have been prepared and studied as vulcanizing agents for low-molecular silicone rubbers. The reaction of N-morpholinomethyltrialkoxysilanes with triethanolamine has afforded N-[(silatranyl)-methyl]morpholine; it has been studied by X-ray analysis.
PREPARATION ET ESSAIS DE DEDOUBLEMENT ENZYMATIQUE D'ACETOXYMETHYL-ET HYDROXYMETHYLSILANES CHIRAUX
Aouf, N. E.,Djerourou, A. H.,Blanco, L.
, p. 207 - 216 (2007/10/02)
Various chirals acetoxymethyl- and hydroxymethylsilanes were synthesized from commercially available chlorosilanes.Several enzymatic-catalyzed hydrolyses or transesterifications have been attempted on these products.Key words: Esterases; lipases; silicium
Bis(pyrrolidiniomethyl)silicate Acetonitrile Solvate: Synthesis and Crystal and Molecular Structure of a Zwitterionic λ5-Spirosilicate
Tacke, Reinhold,Sperlich, Joerg,Strohmann, Carsten,Mattern, Guenter
, p. 1491 - 1496 (2007/10/02)
The zwitterionic spirocyclic bis-(pyrrolidiniomethyl)silicate (3) was synthesized and the crystal and molecular structure of its acetonitrile solvate 3*CH3CN investigated. 3 was prepared by reaction of trimethoxy(pyrrolidinomethyl)silane (8) or dimethoxy(methyl)(pyrrolidinomethyl)silane (9) with 2,3-dihydroxynaphthalene in acetonitrile.Reaction 9 -> 3 involves a remarkable Si-C cleavage with formation of CH4.The pentacoordinate silicon atom of 3*CH3CN is surrounded by 4 oxygen atoms and 1 carbon atom, the latter being in an equatorial position.The coordination polyhedron can be described as a distorted trigonal bipyramid (the structure is displaced by 20.5percent from the trigonal bipyramid towards the square pyramid).The crystal lattice of 3*CH3CN contains centrosymmetric dimers of 3, built up by intermolecular N-HO hydrogen bonds. Key Words: Spirosilicates, zwitterionic / Bond cleavage, Si-C