Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Patent
1995-03-23
1996-02-13
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
585435, 585638, 585641, 585642, 560205, 556450, 556453, 210656, 203 99, C07F 708
Patent
active
054912504
ABSTRACT:
A crude vinylically unsaturated product formed from a palladium-complex-catalyzed reaction of a reactant halide selected from the group consisting of aryl, allyl, vinyl, and benzyl halides, and a reactant olefin having a vinylic hydrogen, wherein the reaction is carried out in the presence of a hydrogen halide acceptor, is purified by first contacting the crude product with a base that is stronger than the hydrogen halide acceptor, then heating the stronger base-contacted product. The purified product shows a marked reduction in concentration bromine and palladium impurities. The product can then be further purified by such methods as chromatography, crystallization, or distillation to achieve a product that is more suitable for applications where very low levels of inorganic impurities are required.
REFERENCES:
patent: 3922299 (1975-11-01), Heck
patent: 4658071 (1987-04-01), Seufert et al.
patent: 4822930 (1989-04-01), Liu
patent: 5138081 (1992-08-01), DeVries et al.
patent: 5243068 (1993-09-01), DeVries et al.
patent: 5264646 (1993-11-01), DeVries et al.
patent: 5424470 (1995-06-01), Bank et al.
Heck, Richard F., Palladium-Catalyzed Vinylation of Organic Halides, Organic Reactions, vol. 27, pp. 345-390 (1982).
DeVries Robert A.
Ecker Ernest L.
Schultz John A.
Stark Edmund J.
Shaver Paul F.
The Dow Chemical Company
Willis Reid S.
LandOfFree
Process for purifying vinylically unsaturated compounds prepared does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for purifying vinylically unsaturated compounds prepared, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for purifying vinylically unsaturated compounds prepared will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-241687