18156-83-7Relevant academic research and scientific papers
Synthesis of cycloaliphatic substituted silane monomers and polysiloxanes for photocuring
Dworak,Soucek
, p. 9402 - 9417 (2007/10/03)
A synthetic scheme was developed to prepare cationically polymerizable methyl, cyclopentyl, and cyclohexyl substituted polysiloxanes. Initially, the desired cycloalkene and dichlorosilane were reacted at high pressure (approximately 250 psi) and high temp
Process for preparing alkylhydrogenchlorosilanes
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, (2008/06/13)
Alkylhydrogenchlorosilanes of formula I: wherein R are identical or different alkyl radicals, x is 1 or 2 and y is 1 or 2 and the sum of x and y is equal to 3, are prepared by comproportionating alkylchlorosilanes of formula II: wherein R denotes identical or different alkyl radicals, a is 1 or 2 and n is 2 or 3 and the sum of a and n is equal to 4 with hydrogenchlorosilanes of formula III: wherein R denotes identical or different alkyl radicals, b is 0, 1, 2 or 3 and c is 1, 2, 3 or 4 and the sum of b and c is equal to or smaller than 4, in the presence of a catalyst saturated with a hydrogen halide.
SILICIUMVERBINDUNGEN MIT STARKEN INTRAMOLEKULAREN STERISCHEN WECHSELWIRKUNGEN. XXIV. CYCLOHEXYLSUBSTITUIERTE DISILANE: DARSTELLUNG UND REAKTIONEN VON DISILENYL-RADIKALANIONEN, 2,3:5,6-DIBENZO-7,8-DISILABICYCLOOCTA-2,5-DIENEN UND EINES CYCLOTETRASILANS
Weidenbruch, Manfred,Thom, Karl-Ludwig
, p. 177 - 186 (2007/10/02)
Treatment of 1,2-di-t-butyl-1,2-dicyclohexyl-1,2-dichlorodisilane (5b) with excess lithium yields the long-lived radical anion t-Bu(Cy)Si=Si(Cy)t-Bu-., which has been characterized by its ESR spectra.Reaction of 5 as well as 1,1,2,2-tetracyclohexyl-1,2-dihalodisilanes (6) with lithium in the presence of anthracene gives 7,8-tetraorganyl-2,3:5,6-dibenzo-7,8-disilabicycloocta-2,5-dienes which can be cleaved photochemically forming the corresponding cyclotetrasilanes.In the presence of phenylacetylene 5 and 6 react with lithium to give the 1,2-bis(phenilethynyl)-substituted disilanes and 3,4,5,6-tetra-t-butyl-3,4,5,6-tetracyclohexyl-2-phenyl-3,4,5,6-tetrasilacyclohexen-1, respectively.The latter compound is also obtained by phenylacetylene insertion into 1,2,3,4-tetra-t-butyl-1,2,3,4-tetracyclohexylcyclotetrasilane.
Novel disubstituted dichlorosilane and method for producing same
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, (2008/06/13)
Novel disubstituted dichlorosilane compounds which have two different specified substituents and are necessary as monomers for preparing special silicone resin are provided and a method for producing same without accompaniment of by-product production is
