620986-95-0

Upstream product

• 622-97-9 1-ethenyl-4-methylbenzene 
• 766-97-2 4-n-methylphenylacetylene 
• 4186-14-5 1-(2-(trimethylsilyl)ethynyl)toluene 
• 106-38-7 para-bromotoluene 

Downstream Products

• 139016-20-9 (S)-1-(4-methylphenyl)-1,2-ethanediol 
• 179914-05-7 (R)-1-(4-methylphenyl)-1,2-ethanediol 

Relevant academic research and scientific papers

Trichlorosilyl groups containing organochlorosilanes and their preparation methods by the double-silylation of olefins with trichlorosilane

The present invention provides organosilicon compounds containing two trichlorosilyl groups and their preparation methods. Organosilicon compounds of formula II are prepared by reacting linear chain or cyclic olefins of formula I with trichlorosilane in the presence of quaternary organophosphonium salt as a catalyst.R1—HC=CH—R2??(I) 1In formulas I and II, R1 and R2 may be identical or different and represent a hydrogen atom, a linear or a cyclic C1-C8 alkyl, a linear or a cyclic C1-C8 alkenyl, benzyl, phenyl, a C1-C8 alkyl substituted phenyl group, two functional groups between R1 and R2 may be covalently bonded to form a C4-C8 ring with or without a carbon-carbon double bond.

Asymmetric synthesis of 1-aryl-1,2-ethanediols from arylacetylenes by palladium-catalyzed asymmetric hydrosilylation as a key step

Double hydrosilylation of arylacetylenes with trichlorosilane catalyzed first by platinum and second by a chiral monophosphine-palladium complex generated the corresponding 1,2-bis(silyl)-1-arylethanes, the oxidation of which with hydrogen peroxide gave 1-aryl-1,2-diols of high enantiomeric purity (94-98% ee) in high yields. Copyright