Process for making chlorophosphines and thiophosphinic acid chlo

Details Process for making chlorophosphines and thiophosphinic acid chlo Process for making chlorophosphines and thiophosphinic acid chlo

1986-09-18

1988-06-21

Moyer, Donald B.

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

Organic compounds

Thiocyanate esters

558 13, 560301, 260543P, C07C16102, C07F 934, C07F 953

Patent

active

047526483

ABSTRACT:
Chlorophosphines or thiophosphinic acid chlorides of the general formulae RPCl.sub.2, R.sub.2 PCl or R.sub.2 P(.dbd.S)Cl are made from feed materials selected from hydrogen-functional primary or secondary phosphines or secondary phosphine sulfides, where R stands for identical or different, linear or branched, substituted or unsubstituted alkyl radicals having from 1-16 carbon atoms, aryl radicals, aralkyl radicals or alkylaryl radicals having from 6-9 carbon atoms or cycloalkyl radicals having from 5-10 carbon atoms. To this end, the feed materials are reacted with phosphorus pentachloride, or with chlorine gas in the presence of phosphorus trichloride at temperatures within the range -78.degree. to +145.degree. C. It is possible for two radicals R to be linked together by one or two substituted or unsubstituted hydrocarbon chains having from 1-4 carbon atoms.

REFERENCES:
patent: 2437796 (1948-03-01), Walling
patent: 2437798 (1948-03-01), Walling
patent: 3074994 (1963-01-01), Grayson
Van Wazer, John R. Phosphorus and Its Compounds, vol. I (1958), Interscience Publ. at p. 192.
Kirk-Othmer Encyclopedia of Chemical Technology 2nd Ed. (vol. 15) at p. 303.

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