Preparation of AMINO-FUNCTIONAL Organosilicon Compounds

A process for preparing an amino-functional organosilicon compound, the process comprising:

• I) combining, under conditions to catalyze reductive amination reaction, starting materials comprising an aldehyde-functional organosilicon compound, an amine source, a hydrogenation catalyst, hydrogen, and optionally a solvent, thereby forming a reaction product comprising the amino-functional organosilicon compound:
• where the aldehyde-functional organosilicon compound comprises an aldehyde-functional polyorganosiloxane of unit formula:
• where each RAld is an independently selected aldehyde group of 3 to 9 carbon atoms, and each R4 is independently selected from the group consisting of an alkyl group of 1 to 18 carbon atoms and an aryl group of 6 to 18 carbon atoms;
• each Z is independently selected from the group consisting of a hydrogen atom and R5, where each R5 is independently selected from the group consisting of alkyl groups of 1 to 18 carbon atoms and aryl groups of 6 to 18 carbon atoms;
• subscripts a, b, c, d, e, f, and g represent numbers of each unit in the unit formula and have values such that subscript a≥0, subscript b≥0, subscript c≥0, subscript d≥0, subscript e≥0, subscript f≥0, subscript g≥0;
• and subscript h has a value such that 0≤h/(e+f+g)≤1.5, 10,000≥ (a+b+c+d+e+f+g)≥2, and a quantity (b+d+f)≥1.