Beta-diketiminate manganese catalysts for hydrosilylation, hydroboration, and dehydrogenative pnictogen-silicon and pnictogen-boron bond formation

Patent metadata

Field	Value
Publication number	US-11273432-B2
Application number	US-201916407317-A
Country	US
Kind code	B2
Filing date	May 9, 2019
Priority date	May 31, 2018
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

The synthesis and structure of beta-diketiminate manganese compounds are described, as well as their use as catalysts for the hydrosilylation and hydroboration of unsaturated organic compounds and main group element-main group element bond formation via dehydrogenative coupling.

First claim

What is claimed is:

1. A method of facilitating a dehydrogenative amine silylation reaction, the method comprising reacting a first compound having one or more Si—H bonds with a second compound having one or more N—H bonds in the presence of one or more of the manganese complexes represented by General Formula G-1:

wherein:
each X independently represents a hydride, an alkyl, an alkoxide, an amide, a silyl, or a boryl, and
each R independently represents hydrogen; a substituted, unsubstituted, or cyclic C 1 -C 24 alkyl group that optionally comprises one or more heteroatoms; an aryl or substituted aryl group that optionally comprises one or more heteroatoms; a ring formed from two R groups taken together that is a substituted or unsubstituted, saturated or unsaturated cyclic structure that optionally comprises one or more heteroatoms; a halide; an alkoxide; an amide; a silyl; a boryl; or any combination or salt thereof.

2. The method of claim 1 , wherein H 2 is formed from hydrogen in at least one of the one or more Si—H bonds of the first compound and hydrogen in at least one of the one or more the N—H bonds of the second compound to yield a product having one or more Si—N bonds.

3. The method of claim 1 , wherein the first compound comprises SiH 4 and the second compound comprises NH 3 , and H 2 is formed from one or more hydrogens in the SiH 4 and one or more hydrogens in the NH 3 to yield a polysilazane polymer having one or more Si—N bonds.

4. The method of claim 3 , wherein the polysilazane polymer has one or more Si—H bonds, one or more N—H bonds, or both.

5. The method of claim 1 , wherein the first compound comprises a siloxane polymer and the second compound comprises a monomer or a polymer having one or more amine groups, and H 2 is formed from the first compound and the second compound to yield a polysilazane polymer having one or more Si—N bonds.

6. The method of claim 5 , wherein the polysilazane polymer comprises one or more Si—H bonds, one or more N—H bonds, or both.

Assignees

• Trovitch Ryan J
• Nguyen Thu Thao
• Mukhopadhyay Tufan K
• Glazier Brian M
• Univ Arizona State

Inventors

• Trovitch Ryan J
• Nguyen Thu Thao
• Mukhopadhyay Tufan K
• Glazier Brian M

Classifications

• B01J31/121

  Metal hydrides · CPC title

• B01J31/1805

  the ligands containing nitrogen · CPC title

• B01J31/1815 Primary

  with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine · CPC title

• C08G77/08

  characterised by the catalysts used · CPC title

• C07F13/005 Primary

  Compounds without a metal-carbon linkage · CPC title