摘要:
A saccharide residue-functional organopolysiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bond. Also, a method of preparing the saccharide residue-functional organopolysiloxane, comprising condensing a saccharide residue-functional metal thiolate compound wherein the metal is an alkali metal atom or alkaline-earth metal atom, and an organopolysiloxane containing groups having the formula —R2Q wherein R2 is C2 to C10 alkylene, and Q is a group selected from halogen atoms, C1 to C10 alkylsulfonate groups, and C6 to C20 arylsulfonate groups.
摘要:
A saccharide residue-functional organopolycarbosiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bond. Also, a method of preparing the saccharide residue-functional organopolycarbosiloxane, comprising condensing a saccharide residue-functional metal thiolate compound wherein the metal is an alkali metal atom or alkaline-earth metal atom, and an organopolycarbosiloxane containing groups having the formula —R2Q wherein R2 is C2 to C10 alkylene, and Q is a group selected from halogen atoms, C1 to C10 alkylsulfonate groups, and C6 to C20 arylsulfonate groups.
摘要:
A saccharide residue-functional organopolycarbosiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bond. Also, a method of preparing the saccharide residue-functional organopolycarbosiloxane, comprising condensing a saccharide residue-functional metal thiolate compound wherein the metal is an alkali metal atom or alkaline-earth metal atom, and an organopolycarbosiloxane containing groups having the formula —R2Q wherein R2 is C2 to C10 alkylene, and Q is a group selected from halogen atoms, C1 to C10 alkylsulfonate groups, and C6 to C20 arylsulfonate groups.
摘要:
A saccharide residue-functional organopolysiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bond. Also, a method of preparing the saccharide residue-functional organopolysiloxane, comprising condensing a saccharide residue-functional metal thiolate compound wherein the metal is an alkali metal atom or alkaline-earth metal atom. and an organopolysiloxane containing groups having the formula —R2 Q wherein R2 is C2 to C10 alkylene, and Q is a group selected from halogen atoms, C1 to C10 alkylsulfonate groups, and C6 to C20 arylsulfonate groups.
摘要:
A saccharide residue-functional organopolysiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bond. Also, a method of preparing the saccharide residue-functional organopolysiloxane, comprising condensing a saccharide residue-functional metal thiolate compound wherein the metal is an alkali metal atom or alkaline-earth metal atom, and an organopolysiloxane containing groups having the formula —R2Q wherein R2 is C2 to C10 alkylene, and Q is a group selected from halogen atoms, C1 to C10 alkylsulfonate groups, and C6 to C20 arylsulfonate groups.
摘要:
A saccharide residue-functional organopolysiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bond. Also, a method of preparing the saccharide residue-functional organopolysiloxane, comprising condensing a saccharide residue-functional metal thiolate compound wherein the metal is an alkali metal atom or alkaline-earth metal atom. and an organopolysiloxane containing groups having the formula —R2Q wherein R2 is C2 to C10 alkylene, and Q is a group selected from halogen atoms, C1 to C10 alkylsulfonate groups, and C6 to C20 arylsulfonate groups.
摘要:
A method for optical resolution of 2-(4-chlorophenyl)-3-methylbutanoic acid, which comprises crystallizing out the salt between (+) or (-)-2-(4-chlorophenyl)-3-methylbutanoic acid and diethylamine in a molar proportion of 2:1 predominantly from a super-saturated solution of the salt of 2-(4-chlorophenyl)-3-methylbutanoic acid with diethylamine, collecting the crystallized salt and decomposing the collected salt under acidic conditions to obtain the corresponding optically active acid.