摘要:
1,2-, 1,3- or 1,4-bis(3-aminopropyldimethylsilyl)benzene is prepared by effecting hydrosilylation reaction between N,N-bis(trimethylsilyl)allylamine and 1,2-, 1,3- or 1,4-bis(dimethylsilyl)benzene in the presence of a platinum catalyst, followed by detrimethylsilylation reaction. The process is simple and inexpensive to synthesize the end compound in high yields without forming isomers.
摘要:
A hydroxyl group-containing compound is silylated by reacting it with an organohydrosilane compound in the presence of a ruthenium complex catalyst having carbonyl groups as ligands. Silylation takes place in a short time while the amount of the catalyst is minimized.
摘要:
Disclosed is a novel organosilicon-containing derivative of pullulan of which an organopolysiloxane moiety having a silethylene linkage is bonded to the glucose residue of pullulan through a urethane linkage. Different from conventional organopolysiloxane-modified pullulans, the inventive derivative is stable against attack of water and exhibits unique properties as a combination of the properties inherent in pullulan and in silicones. The organosilicon-containing pullulan of the invention can be easily prepared under mild reaction conditions by reacting an isocyanato group-containing organopolysiloxane with the glucosic hydroxy groups of pullulan.
摘要:
Disclosed are a conductive thienyl derivative monomolecular film covalently bonded to a substrate surface and method of manufacturing the same, and a silicon compound comprising 3-thienyl groups (thiophene derivative) used for forming the conductive monomolecular film and a method of manufacturing the same. A monomolecular ultrathin film comprising 3-thienyl groups and silicon groups is formed in the invention. The silicon compound used for forming the film is provided by reacting .omega.-(3-thienyl)-1-alkene compound to a monosilane derivative compound, in which three out of four hydrogen atoms of monosilane are replaced with halogen or alkoxy groups, in the presence of a transition metal catalyst. A substrate is dipped and held in a nonaqueous solution of the above-noted compound, thus chemically bonding the monomolecular film to the substrate surface. Furthermore, a thienyl derivative ultrathin film is formed by the electrolytic or catalytic polymerization of the monomolecular film.
摘要:
A method for preparing a tertiary hydrocarbon-silyl compound comprises the step of reacting a grignard reagent represented by the general formula: R.sup.1 MgX.sup.1 (wherein R.sup.1 represents a tertiary hydrocarbon group and X.sup.1 is a halogen atom) with a silicon atom-containing compound represented by the general formula: X.sup.2.sub.m R.sup.2.sub.n SiH.sub.4-m-n (wherein X.sup.2 is a halogen atom and may be identical to or different from X.sup.1 ; R.sup.2 is a monovalent hydrocarbon group; m is 1, 2 or 3; and n is 0, 1 or 2, provided that m+n is not more than 3 and that if n is 2, R.sup.2 's may be identical to or different from one another) in an aprotic inert organic solvent in the presence of a copper compound and/or a quaternary ammonium salt. According to this method, the tertiary hydrocarbon-silyl compounds can industrially efficiently and rapidly produced in high yields.
摘要:
A silane compound represented by the following general Formula (I) is described: ##STR1## wherein R.sup.1 is an alkyl group with 1 to 4 carbon atoms;A is oxygen atom (--O--), carboxyl group ##STR2## or an alkylsilylene group ##STR3## wherein each R.sup.2 and R.sup.3 is an alkyl group with 1 to 4 carbon atoms;x is a halogen atom, or an alkoxyl group;m is an integer from 1 to 8;n is an integer from 0 to 2;p is an integer from 5 to 25; andq is an integer from 0 to 2.The silane compound is useful as a coating agent for various base materials, to provide lubricity, in addition to stain-proofing property.
摘要:
A composition comprising iodotrimethylsilane in admixture with a polysiloxane is shelf stable for a long time and effective in various organic synthetic reactions.