Method for manufacturing acryloxypropysilane
AssigneeChisso Corporation
InventorsYoichi Kimae, Shunji Yoshimatsu, Norio Itoda, Takashi Matsuo, Naoki Noda
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Abstract
A method to manufacture acryloxypropylsilane to a high degree of purity is achieved by hydrosilation of (A) allyl acrylate or allyl methacrylate by (B) a hydrosilane compound, using (C) a platinum-containing compound as the catalyst and (D) an organic phosphorus compound as the promoter. The acryloxypropylsilane product is expressed by General Formula I CH.sub.2 .dbd.CR.sup.1 COOCH.sub.2 CH.sub.2 CH.sub.2 SiR.sup.2.sub.n R.sup.3.sub.3-n (Formula I) where R.sup.1 represents a hydrogen or methyl group, R.sup.2 represents a hydrolyzable group, R.sup.3 represents an aryl, alkenyl or aryl group of carbon number 1-12, and n is 0, 1, 2, or 3.
Claims2
A process of manufacturing acryloxypropylsilane expressed by Formula (I),
- CH.sub.2 .dbd.CR.sup.1 COOCH.sub.2 CH.sub.2 CH.sub.2 SiR.sup.2.sub.n R.sup.3.sub.3-n (Formula I)
- wherein R.sup.1 represents hydrogen or methyl, R.sup.2 represents a hydrolyzable group, R.sup.3 represents an alkyl, alkenyl or aryl group of carbon number 1-12, and n is 0, 1, 2 or 3, which process comprises hydrosilating allyl acrylate or allyl methacrylate with a hydrosilane compound, with the use of a platinum-containing compound as catalyst, and an organic phosphorus compound as promoter selected from the group consisting of triphenylphosphine and an organic phosphorus compound expressed by Formula (III),
- R.sup.7 R.sup.8 P(X).sub.m PR.sup.9 R.sup.10 (Formula III)
- wherein R.sup.7, R.sup.8, R.sup.9 and R.sup.10 represent an alkyl group of carbon number 1-10 or an aryl group of carbon number 6-10, X represents CH.sub.2 and m is 1, 2, 3 or 4.
A process according to claim 5, which comprises mixing the allyl acrylate or allyl methacrylate and the organic phosphorus compound followed by adding the platinum-containing compound, and then dropwise adding the hydrosilane compound.
Dependencies are inferred from the claim text.