Patent ID: 8765987

Claim:
A process for the hydrosilylation of a reaction mixture containing a silyl hydride and a compound containing at least one unsaturated group, the process comprising: (i) providing a catalyst precursor being a complex having a structural formula according to Formula (I), Formula (II), or Formula (III); (ii) activating the catalyst precursor by contacting the catalyst precursor with an activator in the presence of a liquid medium containing at least one component selected from the group consisting of a solvent, the silyl hydride, the compound containing at least one unsaturated group, and combinations thereof, thereby providing an activated catalyst; (iii) reacting the silyl hydride, selected from the group consisting of R 3 SiH, (RO) 3 SiH, HSiR a (OR) 3-a , R 3 Si(CH 2 ) f (SiR 2 O) k SiR 2 H, (RO) 3 Si(CH 2 ) f (SiR 2 O) k SiR 2 H, Q u T v T p H D w D H x M H y M z , and combinations thereof, wherein Q is SiO 4/2 , T is R′SiO 3/2 , T H is HSiO 3/2 , D is R′ 2 SiO 2/2 , D H is R′HSiO 2/2 , M H is H g R′ 3-g SiO 1/2 , M is R′ 3 SiO 1/2 , each occurrence of R and R′ is independently C1-C18 alkyl, C1-C18 substituted alkyl, aryl, or substituted aryl, wherein R and R′ optionally contain at least one heteroatom, each occurrence of a independently has a value from 1 to 3, f has a value of 1 to 8, k has a value of 1 to 11, g has a value of from 1 to 3, p is from 0 to 20, u is from 0 to 20, v is from 0 to 20, w is from 0 to 1000, x is from 0 to 1000, y is from 0 to 20, and z is from 0 to 20, provided that p+x+y equals 1 to 3000, and the valences of the all the elements in the silyl hydride are satisfied and the compound containing at least one unsaturated group in the presence of the activated catalyst to produce a hydrosilylation product containing the activated catalyst or derivatives thereof, wherein step (ii) is conducted shortly before, or at the same time as, step (iii); and (iv) optionally removing the activated catalyst or derivatives thereof, wherein Formula (I), Formula (II) and Formula (III) are: wherein G is Mn, Fe, Ni, or Co; each occurrence of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , R 21 , R 22 , R 23 and R 24 is independently H, C1-18 alkyl, C1-C18 substituted alkyl, aryl, substituted aryl, or an inert group, wherein any two of R 1 -R 3 , R 3 -R 7 , R 3 -R 9 , R 14 -R 15 and R 17 -R 18 vicinal to one another taken together may form a ring being a substituted or unsubstituted, saturated, or unsaturated cyclic structure, wherein R 2 to R 9 , and R 11 to R 24 other than hydrogen, optionally contain at least one heteroatom; each occurrence of R 10 is C1-C18 alkyl group or C1-C18 substituted alkyl, aryl or substituted aryl group, wherein R 10 optionally contains at least one heteroatom; and X is an anion.