	US 11,851,390 B2
	Reaction of glycoladehyde
Michiel Jules Y Pelckmans, Mol (BE); William Hendrick Faveere, Ghent (BE); and Bert Sels, Westerlo (BE)
Assigned to Taminco BVBA
Appl. No. 17/044,471
Filed by Taminco BV, Ghent (BE)
PCT Filed Apr. 4, 2019, PCT No. PCT/EP2019/058557 § 371(c)(1), (2) Date Oct. 1, 2020, PCT Pub. No. WO2019/193117, PCT Pub. Date Oct. 10, 2019.
Claims priority of provisional application 62/652,751, filed on Apr. 4, 2018.
Claims priority of application No. 1904612 (GB), filed on Apr. 2, 2019.
Prior Publication US 2021/0139410 A1, May 13, 2021
Int. Cl. C07C 213/08 (2006.01); B01J 21/18 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); C07C 209/26 (2006.01)

CPC C07C 213/08 (2013.01) [B01J 21/18 (2013.01); B01J 23/44 (2013.01); B01J 23/462 (2013.01); C07C 209/26 (2013.01)]

17 Claims

1. A process for preparing alkanolamines and diamines, characterized by a two-step procedure wherein step 1 comprises under inert atmosphere and in a reactive organic fluid reacting of glycolaldehyde with an aminating agent, to give unsaturated intermediates and step 2 comprises hydrogenating the reaction mixture obtained in the first step under a hydrogen atmosphere whilst in contact with a supported hydrogenation catalyst and still in the reactive organic fluid,

wherein the aminating agent is ammonia, a primary amine, a secondary amine, or mixtures thereof,

wherein the reactive organic fluid comprises a polar protic organic fluid which comprises O—H or N—H bonds, and wherein the polar protic organic solvent has a dielectric constant value of between 15 to 50, and

whereby the supported hydrogenation catalyst is, silica, silica-alumina, alumina or carbon, as support.