Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Patent
1990-07-20
1991-08-20
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
556453, 556454, 556455, 556456, C07F 708
Patent
active
050415948
ABSTRACT:
Organo(poly)siloxanes having Si-linked, conjugated dienyl groups are prepared by adding a secondary or tertiary acetylenic alcohol (1) to an organo(poly)siloxane (2) having at least one Si-linked hydrogen atom in the presence of a catalyst (3) which promotes the addition of Si-linked hydrogen to an aliphatic multiple bond, and then eliminating water by an intramolecular reaction in the presence of an acid catalyst (4) from the alkenol groups of the organo(poly)siloxane thus obtained.
REFERENCES:
patent: 4874881 (1989-10-01), Suzuki et al.
patent: 4876373 (1989-10-01), Okawa et al.
Shaver Paul F.
Wacker-Chemie GmbH
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