Study of the alkylation of chlorosilanes. Part II. Synthesis of (fluoroalkyl)chlorosilanes and tetra(fluoroalkyl)silanes via hydrosilylation
1994; Elsevier BV; Volume: 68; Issue: 1 Linguagem: Inglês
10.1016/0022-1139(93)02999-u
ISSN1873-3328
AutoresB. Boutevin, F. Guida‐Pietrasanta, A. Ratsimihety, G. Caporiccio,
Tópico(s)Silicone and Siloxane Chemistry
ResumoThe hydrosilylation of various fluorinated olefins and of a diene with different chlorosilanes and with a tri(fluoroalkyl)silane, in the presence of a peroxide or a Pt catalyst, is reported. The reactivity is influenced considerably by the structure of the silane and of the fluorinated olefin. The following (fluoroalkyl)chlorosilanes and (fluoroalkyl)-α,ω-chlorodisilanes are described; C6F13(CH2)n,SiR1R2Cl where n = 2 or 3 and (ClR1R2SiC2H4C3F6)2 with R1p=R2=Cl, R1=Cl and R2=CH3 or C2H4CF3, R1=R2=CH3 and R1=CH3 and R2 =C6H5. Three new tetra(fluoroalkyl)silanes have also been synthesized. All the products were characterized by 1H, 19F and 29Si NMR spectroscopy.
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