IP Library Granted Patent US 10,858,378
Granted Patent B2
US 10,858,378 · App. 15/779,653 · Granted Dec 8, 2020

Synthesis of disilanylamines through transamination

Inventor: Xiaobing Zhou (Midland, MI)
Assignees: Dow Silicones Corporation; Rohm and Haas Electronic Materials LLC
C07F7/10C07F7/025C07F7/0803C07F7/20C23C16/345
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Quick Facts
Patent No.
US 10,858,378
App. No.
15/779,653
Granted
Dec 8, 2020
Kind
B2
Abstract

The present invention provides processes for preparing silanylamines, such as disilanylamines and polysilanylamines, and compositions comprising the silanylamines. In one embodiment, the present invention provides processes for preparing a silanylamine compound, the processes comprising reacting a starting compound of general formula RR 1 N—(Si x H 2x+1 ) with an amine compound of general formula R 2 R 3 NH to produce the silanylamine compound of general formula R 2 m R 3 n —N(Si x H 2+1 ) 3-m-n .

Claims (20)

1. A process for preparing a silanylamine compound, the process comprising reacting a starting compound of general formula

RR 1 N—(Si x H 2x+1 )  (I)

with an amine compound of general formula

R 2 R 3 NH  (II)

to produce the silanylamine compound of general formula

R 2 m R 3 n —N(Si x H 2x+1 ) 3-m-n   (III)

wherein

R and R 1 are independently a hydrogen, substituted or unsubstituted aryl group having 6 to 10 carbon atoms, substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or substituted or unsubstituted cycloalkyl group having 5 to 10 carbon atoms;

R 2 is H;

R 3 is a silane of formula —Si x H 2x+1 ;

x is an integer from 2 to 10; and

m and n are 0.

2. The process according to claim 1 , wherein the starting compound of formula (I) comprises a dialkyldisilanylamine.

3. The process according to claim 1 , wherein R and R 1 of the starting compound of formula (I) comprise a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms and x is an integer from 2 to 4.

4. The process according to claim 1 or 2 , wherein R and R 1 of the starting compound of formula (I) comprise a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms and x is an integer from 2 to 3.

5. The process according to claim 1 , wherein the starting compound of formula (I) comprises diisopropyldisilanylamine.

6. The process according to claim 1 , wherein x is an integer from 2 to 3 in the amine compound of formula (II).

7. The process according to claim 1 , wherein the amine of formula (II) is bis-disilanylamine.

8. The process according to claim 1 , wherein the silanylamine compound of formula (III) comprises tris(disilanyl)amine.

9. The process according to claim 1 , wherein the molar ratio of formula (II) to formula (I) is from 0.1:1 to 100:1.

Assignments (5)
CHANGE OF NAME Recorded Sep 3, 2021
From: DOW CORNING CORPORATION
To: DOW SILICONES CORPORATION
Reel/Frame 057378/0067 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2021
From: JIANGSU NATA OPTO-ELECTRONIC MATERIALS CO. LTD.
To: NATA SEMICONDUCTOR MATERIALS CO., LTD.
Reel/Frame 056610/0391 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 27, 2021
From: DDP SPECIALTY ELECTRONIC MATERIALS US 9, LLC
To: JIANGSU NATA OPTO-ELECTRONIC MATERIALS CO. LTD.
Reel/Frame 055054/0570 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2020
From: DOW SILICONES CORPORATION
To: DDP SPECIALTY ELECTRONIC MATERIALS US 9, LLC
Reel/Frame 054706/0974 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2020
From: ZHOU, XIAOBING
To: DOW CORNING CORPORATION
Reel/Frame 053644/0633 →