Catalyst particles and methods for dehydrogenative silylation

A method of preparing an organosilicon compound, said method comprising:

• preparing a Ru (O) complex by combining a triruthenium complex and a ligand precursor compound to give the Ru(0) complex:
• heating a mixture of the Ru(0) complex in a carrier fluid at an elevated temperature to nucleate the Ru(0) complex and give catalyst particles in the carrier fluid;
• optionally, isolating the catalyst particles from the carrier fluid;
• and
• reacting via dehydrogenative coupling (A) an organohydridochlorosilane compound and (B) unsubstituted ethylene in the presence of (C) a catalyst, thereby preparing the organosilicon compound:
• wherein the catalyst (C) comprises the catalyst particles;
• wherein (i) the triruthenium complex comprises Ru3(CO)12;
• wherein the ligand precursor compound comprises:
• (i) a phosphorous compound;
• (ii) an amine compound;
• or (iii) both (i) and (i);
• and
• wherein:
• (i) the organohydridochlorosilane compound (A) comprises chlorodimethylsilane and the organosilicon compound comprises chlorodimethylvinylsilane:
• (ii) the organohydridochlorosilane compound (A) comprises dichloromethylsilane and the organosilicon compound comprises dichloromethylvinylsilane;
• or (ii) both (i) and (ii).