# US 4,400,526 A · Hydrogen bearing silyl carbamates

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- Number: US 4,400,526 A
- Document ID: US4400526A
- Status: Granted
- Kind: A
- Application number: 06/430,373
- Filed: 1982-09-30
- Granted: 1983-08-23
- Earliest claimed: 1982-09-30
- Assignees: Union Carbide Corporation
- Inventors: Bernard Kanner; Curtis L. Schilling, Jr.; Steven P. Hopper
- Web page: https://patentgrep.com/patent/US4400526A

## CPC

- C07F 7/1896: {Compounds having one or more Si-O-acyl linkages}
- C07F 7/025: {without C-silicon linkages}
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)

## Abstract

A hydrogen bearing silyl carbamate of the general formula: HSiR.sub.n (O.sub.2 CNR'R").sub.3-n is synthesized from hydrogen bearing aminosilane and gaseous carbon dioxide. The resulting hydrogen bearing silyl carbamate is novel in the single hydrogen attached to the silyl carbamate and represents a major new compound for creating novel compositions of matter.

## Claims

### Claim 1

A compound selected from the group consisting of those compounds of the formula:
HSiR.sub.n (O.sub.2 CNR'R").sub.3-n
wherein R is a saturated or unreacted, substituted or unsubstituted alkyl, aryl, alkoxy or dialkylamino radical containing from one to twelve carbon atoms inclusive; R' and R" are individually selected from the group consisting of saturated or unsaturated, substituted or unsubstituted alkyl or aryl hydrocarbon radicals containing from one to twelve carbon atoms inclusive; and n has a value of from 0 to 2.

### Claim 2 (depends on 1)

The compound selected from the group consisting of those compounds set forth in claim 1 wherein, R, R' and R" individually contain from one to six carbon atoms.

### Claim 3 (depends on 2)

The compound selected from the group consisting of those compounds set forth in claim 2 wherein R, R' and R" are individually alkyl radicals.

### Claim 4 (depends on 3)

The compound selected from the group consisting of those compounds set forth in claim 3 wherein n=o.

### Claim 5 (depends on 3)

The compound selected fro the group consisting of those compounds set forth in claim 3 wherein n=1.

### Claim 6 (depends on 3)

The compound selected from the group consisting of those compounds set forth in claim 3 wherein n=2.

### Claim 7

A compound selected from the group consisting of those compounds of the formula:
HSi(O.sub.2 CNR'R").sub.3
wherein R' and R" are individually selected from the group consisting of saturated or unsaturated, substituted or unsubstituted alkyl or aryl hydrocarbon radicals containing from one to six carbon atoms inclusive.

### Claim 8 (depends on 7)

The compound selected from the group consisting of those compounds set forth in claim 7 wherein R' and R" are selected from the group consisting of methyl groups, ethyl groups and propyl groups.

### Claim 9 (depends on 8)

The compound of claim 8 wherein R' and R" are both methyl groups.

### Claim 10

A compound selected from the group consisting of those compounds of the formula:
HSiR.sub.2 (O.sub.2 CNR'R").sub.1
wherein R is a saturated or unsaturated, substituted or unsubstituted alkyl, aryl, alkoxy, or dialkyl amino radical containing from one to six carbon atoms inclusive; and R' and R" are individually selected from the group consisting of saturated or unsaturated, substituted or unsubstituted alkyl or aryl hydrocarbon radicals containing from one to six carbon atoms inclusive.

### Claim 11 (depends on 10)

The compound selected from the group consisting of those compounds set forth in claim 10 wherein R is an alkyl, alkoxy or dialkylamino radical containing from one to three carbon atoms inclusive and R' and R" are individually alkyl hydrocarbon radicals containing from one to three carbon atoms inclusive.

### Claim 12 (depends on 11)

The compound of claim 11 wherein R is a dimethylamino group and R' and R" are both methyl group.

### Claim 13 (depends on 11)

The compound of claim 11 wherein R, R' and R" are all methyl groups.

### Claim 14

A compound selected from the group consisting of those compounds of the formula:
HSiR.sub.1 (O.sub.2 CNR'R").sub.2
wherein R is a saturated or unsaturated, substituted or unsubstituted alkyl, aryl, alkoxy or dialkylamino radical containing from one to six carbon atoms inclusive; and R' and R" are individually selected from the group consisting of saturated or unsaturated, substituted or unsubstituted alkyl or aryl hydrocarbon radicals containing from one to twelve carbon atoms inclusive.

### Claim 15 (depends on 14)

The compound selected from the group consisting of those compounds set forth in claim 14 wherein R is an alkyl, alkoxy or dialkylamino radical containing from one to three carbon atoms inclusive and R' and R" are individually alkyl hydrocarbon radicals containing from one to three carbon atoms inclusive.

### Claim 16

Tris(dimethylcarbamato)silane.

### Claim 17

Bis(dimethylcarbamato)dimethylaminosilane.

### Claim 18

Bis(dimethylcarbamato)methylsilane.

### Claim 19

Dimethylcarbamatodimethylsilane.