Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus esters
Patent
1990-03-05
1991-09-17
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus esters
558140, 568 14, 568 16, C07F 914
Patent
active
050496913
ABSTRACT:
Phosphorus compounds having at least one chlorine, bromine or iodine bonded directly to phosphorus are transhalogenated with fluorine by reaction with anhydrous hydrogen fluoride in an inert solvent, e.g., xylene, methylene chloride, in a manner such that said anhydrous hydrogen fluoride is added to said phosphorus compound at a rate such that said anhydrous hydrogen fluoride reacts with said phosphorus compound without the accumulation of an amount of unreacted anhydrous hydrogen fluoride which is sufficient to cause substantial decomposition of the desired fluorophosphorus product.
REFERENCES:
patent: 4929745 (1990-05-01), Kelbys et al.
Ao Meng-Sheng
Burt Edward A.
Burton Lester P. J.
Stahly Barbara C.
Denkat Jyothsna
Ethyl Corporation
Hogan Patricia J.
Odenweller Joseph D.
Shah Mukund J.
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