Patent ID: 7598409
Filing Date: 2009-10-06
Classification: C07F

Abstract:
1. A process for preparing a silicon compound bearing at least one fluoroalkyl group by hydrosilylation of a fluoroolefin in the presence of a Pt-containing hydrosilylation catalyst, the process comprising: initially charging and heating a hydrogenchlorosilane; metering in the fluoroolefin and reacting the reaction mixture; and subsequently isolating the hydrosilylation product, and wherein the Pt-containing hydrosilylation catalyst consists of a hexachloroplatinic acid or a Pt(0) complex; wherein the fluoroolefin has an iodine content from 6.5 ppm to 170 ppm by weight, a diene content from 1 ppm to less than 100 ppm by weight, and a water content of less than 100 ppm by weight.