# US 7,745,564 B2 · System for synthesis of device forming monomers

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- Number: US 7,745,564 B2
- Document ID: US7745564B2
- Status: Granted
- Kind: B2
- Application number: 11/471,991
- Filed: 2006-06-21
- Published: 2006-12-28
- Granted: 2010-06-29
- Earliest claimed: 2005-06-28
- Assignees: Bausch & Lomb Incorporated
- Applicants: Mary Lou Friends, legal representative
- Inventors: Mahendra Nandu; Gary D. Friends; David E. Seelye; Vinod Kumar Kansal; C. C. Shah; Dharmesh Balvantrai Mistry
- Web page: https://patentgrep.com/patent/US7745564B2

## CPC

- C07F 7/0889: {Reactions not involving the Si atom of the Si-O-Si sequence}
- C07C 68/06: from organic carbonates
- C07C 269/04: from amines with formation of carbamate groups
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

Disclosed in embodiments herein is a method of synthesizing device forming monomers using N-(Vinyloxycarbonyloxy)succinimide.

## Claims

### Claim 1

A method of synthesizing N-(Vinyloxycarbonyl)-3-amino-propyltris(trimethylsiloxy silane), the method comprising:
providing a reaction mixture of N-(Vinyloxycarbonyloxy) succinimide and 3-aminopropyl-tris-(trimethylsiloxy) silane in dichloromethane; s
stirring the reaction mixture for a time sufficient for the completion of the reaction; and,
extracting the reaction mixture and removing the solvent to provide N-(Vinyloxycarbony)-3-amino-propyltris(trimethylsiloxy silane) VC.

### Claim 2 (depends on 1)

The method of claim 1 wherein the N-(Vinyloxycarbony)- 3-amino-propyltris(trimethylsiloxy silane) is optically clear.