US 11,702,432 B2
Method of making an organoaminosilane
Anthony E. Foss, Midland, MI (US); Jesse A. Maddock, Midland, MI (US); Brian D. Rekken, Midland, MI (US); and Michael D. Telgenhoff, Midland, MI (US)
Assigned to DOW SILICONES CORPORATION, Midland, MI (US)
Appl. No. 16/979,230
Filed by Dow Silicones Corporation, Midland, MI (US)
PCT Filed Feb. 13, 2019, PCT No. PCT/US2019/017754
§ 371(c)(1), (2) Date Sep. 9, 2020,
PCT Pub. No. WO2019/226207, PCT Pub. Date Nov. 28, 2019.
Claims priority of provisional application 62/675,439, filed on May 23, 2018.
Prior Publication US 2020/0399291 A1, Dec. 24, 2020
Int. Cl. C07F 7/10 (2006.01); B01J 4/00 (2006.01); B01J 19/00 (2006.01); C07F 7/02 (2006.01)
CPC C07F 7/10 (2013.01) [B01J 4/001 (2013.01); B01J 19/0053 (2013.01); C07F 7/025 (2013.01)] 10 Claims
 
1. A method of making an aminosilane, the method comprising:
forming a reaction mixture comprising a hydridosilane selected from monosilane and disilane, an amine and a dehydrogenative coupling catalyst in a reactor;
subjecting the reaction mixture to conditions sufficient to cause a dehydrogenative coupling reaction between the hydridosilane and the amine to form the aminosilane and hydrogen gas; and
venting the hydrogen gas from the reactor;
wherein the forming of the reaction mixture comprising the hydridosilane, the amine and the dehydrogenative coupling catalyst comprises continuously feeding the hydridosilane to the reactor by bubbling it through the amine and the dehydrogenative coupling catalyst.