Branched Oligoarylsilanes and Method for Producing Same
Novel branched oligoarylsilanes of general formula (I) A method of preparation of branched oligoarylsilanes is that a compound of general formula (III) Y-Qk-Si?Arn—R)3 (III), where Y stands for a residue of boronic acid or
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Paragraph 0053; 0054
(2016/05/11)
A facile and efficient synthesis of aryltriethoxysilanes via sonochemical Barbier-type reaction
A series of aryltriethoxysilanes was synthesized from the reaction mixture of aryl bromide, Mg powder, 1,2-dibromoethane and tetraethyl orthosilicate in THF under ultrasound. This sonochemical Barbier-type reaction provides a simple and efficient method for preparation of aryltriethoxysilanes. The Hiyama cross-coupling reaction of phenyltriethoxysilane with bromobenzene was investigated under different palladium catalysts and Pd(PhCN)2Cl2 was found to be the best choice.
Lee, Adam Shih-Yuan,Chang, Yu-Ting,Chu, Shu-Fang,Tsao, Kuo-Wei
p. 7085 - 7087
(2007/10/03)
Improved synthesis of aryltriethoxysilanes via palladium(O)-catalyzed silylation of aryl iodides and bromides with triethoxysilane
The scope of the palladium-catalyzed silylation of aryl halides with triethoxysilane has been expanded to include aryl bromides. A more general Pd(0) catalyst/ligand system has been developed that activates bromides and iodides: palladium(O) dibenzylideneacetone (Pd(dba)2) is activated with 2-(di-tert-butylphosphino)biphenyl (Buchwald's ligand) (1:2 mol ratio of Pd/phosphine). Electronrich para- and meta-substituted aryl halides (including unprotected aniline and phenol derivatives) undergo silylation to form the corresponding aryltriethoxysilane in fair to excellent yield; however, ortho-substituted aryl halides failed to be silylated.
Manoso,DeShong
p. 7449 - 7455
(2007/10/03)
Synthesis of Arylsilanes via Palladium(0)-Catalyzed Silylation of Aryl Halides with Hydrosilane