Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus containing
Patent
1981-07-30
1983-07-26
Nielsen, Earl A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus containing
C07F 954
Patent
active
043955746
ABSTRACT:
Certain tetrahydrocarbyl phosphonium phenoxide salts are described herein which are novel compounds and/or novel catalysts for promoting the reaction between vicinal epoxides and phenols and/or carboxylic acids or anhydrides. These catalysts are particularly useful in preparing high molecular weight epoxy resins by the advancement reaction of diglycidyl ether of bisphenol A with bisphenol A.
REFERENCES:
patent: 3442854 (1969-05-01), Curtius et al.
patent: 4340761 (1982-07-01), Doorakian et al.
Kline et al., "Conductance of Some Onium-type Salts", Chemical Abstracts 41, 4361a (1947).
Wittig et al., "New Synthesis of Cyclopolyenes VI", Chemical Abstracts 53, 16091e (1959).
Schindlbauer, "Molecular and Equivalent Weight Determination of Phosphines and Phosphonium Salts", Chemical Abstracts 59, 10775d (1963).
Schmidbauer et al., "Organosilicon Chemistry of Phosphorus Ylides", Chemical Abstracts 79, 53455q (1973).
Bertram James L.
Doorakian George A.
Glenn Michael L.
Nielsen Earl A.
The Dow Chemical Co.
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