Organosilicon compounds and process for the preparation thereof

Details Organosilicon compounds and process for the preparation thereof Organosilicon compounds and process for the preparation thereof

2011-05-17

2011-05-17

Powers, Fiona T (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

Reexamination Certificate

active

07943747

ABSTRACT:
Functionalized organosilicon compounds comprising at least one activated azo group of formula (I): [(G0)3SiO1/2]m[(G0)2SiO2/2]n[G0SiO3/2]o[SiO4/2]p[(G2)a(G1)a′(Z-CO—HN═NH—CO-A)SiO(3-a-a′)/2], for example a mixture of silane species of formula (ia): (C2H5O)3Si—(CH2)3—NH—CO—N═N—COOC2H3; with siloxane species of formulae: (2i.1a): [(CH3)3SiO1/2] [(C2H5O)2{(CH2)3—NH—CO—N═N—COOC2H5} SiO2/2] and (2i.2a): [(CH3)3SiO1/2]2[(C2H5O) {(CH2)3—NH—CO—N═N—COOC2H5} SiO2/2], are prepared from at least one hydrazino precursor (II) (—HN—NH—) of compound (I), by oxidizing the precursor (II) into an azo group for the compound (I) utilizing at least one oxidizing agent (Ox) and at least one vase (B) and also a supplementary reagent selected from among silanes of formula (III): (G DEG)4-p1Si (G2′)p1 [for example, (CH3)3(C2HSO)Si].

REFERENCES:
patent: 4118367 (1978-10-01), Dawes et al.
patent: 5362794 (1994-11-01), Inui et al.
patent: 2009/0215999 (2009-08-01), Sterin
patent: 2009/0216000 (2009-08-01), Sterin
Mitchell, H. et al, “Animation of Arenes with Electron-Deficient Azodicarboxylates,” J. Org. Chem., 1994, pp. 682-687, vol. 59.
Dawes, K et al., Chemical modification of natural rubber—a new silane coupling agent, Plastics and Rubber: Materials and Applications, Feb. 1978, pp. 23-26, XP0009060017, London, England.
Dawes, K et al., Chemical modification of natural rubber—a new silane coupling agent, Rubbercon '77, 1977, pp. 18.1-18.11.

Affiliated with

Also associated with

Rating

Organosilicon compounds and process for the preparation thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organosilicon compounds and process for the preparation thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organosilicon compounds and process for the preparation thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2689216