1112-55-6Relevant academic research and scientific papers
Method for synthesizing tetravinyl silane
-
Paragraph 0017-0025, (2021/11/26)
The invention discloses a method for synthesizing tetravinyl silane, which comprises the following steps of: one. The mixed organic solvent comprises first organic solvent and second organic solvent, first organic solvent is tetrahydrofuran, second organic solvent is an organic solvent immiscible with water. The reaction temperature is controlled to 30 °C - 35 °C by dropwise adding vinyl magnesium chloride dropwise. After completion of the reaction, the reaction is quenched with a weak acidic aqueous solution. After the quenching reaction is complete, the organic layer is directly rectified to obtain the product. The method has the advantages that the operation steps are simple, the reaction steps are few, the purification is easy, and the purity of the obtained tetravinyl silane is high.
METHOD FOR PRODUCING TETRAALKENYLSILANE
-
Paragraph 0023, (2020/06/27)
PROBLEM TO BE SOLVED: To provide an efficient method for producing a tetraalkenylsilane with improved production efficiency per unit volume of a reactor. SOLUTION: Provided is a method for producing a tetraalkenylsilane represented by general formula (3), comprising reacting an alkenyl trihalosilane represented by general formula (1) (in the formula, X represents a halogen atom and n represents an integer of 0 to 16. The same holds for general formulas (2) and (3)) with a Grignard compound represented by general formula (2). SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
Side products in the syntheses of vinylsilanes and vinylsiloxanes using vinylmagnesium chloride
Zhun
, p. 1746 - 1748 (2007/10/03)
Impurity of moisture in the solvent (tetrahydrofuran) alters the, normal scheme of formation of vinylmagnesiumm chloride and gives rise to several unexpected products: benzene, toluene, and methyl chloride. Side products forming in alkali hydrolysis of trivinylsilane and hydrochlorination of tetravinylsilane were isolated and identified.
Silaethenes, XV. Pyrolysis of 1-Methyl-1-vinyl-1-silacyclobutane and 1,1-Divinyl-1-silacyclobutane - Follow-up Reactions of the Silaethenes Me(Vi)Si=CH2 and Vi2Si=CH2
Grobe, Joseph,Ziemer, Harald
, p. 1193 - 1202 (2007/10/02)
The pyrolysis of the silacyclobutanes Vi(Me)Si(CH2)3 (VMS) and Vi2Si(CH2)3 (V2S) at 700-800 deg C and 1E-1 - 1E-2 mbar leads to the intermediates Vi(Me)Si=CH2 and Vi2Si=CH2, which undergo isomerisation to siliranes followed by cleavage to give allene and the corresponding silylenes Me(H)Si: and Vi(H)Si: respectively.Copyrolyes of these silacyclobutanes with dienes (2,3-dimethyl-1,3-butadiene or isoprene) yield silacyclopentene derivatives (4, 14 and 20).The formation of these products supports the proposed mechanism.The simultaneous existence of silaethenes and silylenes in the gas phase is proven by the presence of the disilacyclobutanes 13 and 17, respectively, in the reaction mixtures.Using isoprene as the quenching reagent for Vi(Me)Si=CH2 the two isomeric silacyclohexenes 15 and 16 are formed in low yield, in addition to almost equal amounts of 13 and 14 (eq. (6)).
