Preparation of novel S-brom-dithiophosphoric, dithiophosphonic a

Details Preparation of novel S-brom-dithiophosphoric, dithiophosphonic a Preparation of novel S-brom-dithiophosphoric, dithiophosphonic a

1981-11-24

1983-01-18

Evans, Joseph E.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260920, 260545P, 260775, 568 14, 564 12, 564 14, 544157, C07F 906, C07F 922, C07F 928, C07F 965

Patent

active

043691471

ABSTRACT:
A compound of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is an optionally substituted alkyl, aralkyl, aryl, alkoxy, aryloxy, aralkoxy, alkylthio, arylthio, aralkylthio, alkylamino, arylamino or aralkylamino radical,
is produced by reacting a compound of the formula ##STR2## in which X is hydrogen, an alkali metal ion, an optionally alkyl-, aralkyl- and/or aryl-substituted ammonium radical, a trialkylsilyl radical, or ##STR3## with bromine in the presence of an inert diluent at a temperature from about -50.degree. to 20.degree. C.
The product can be employed as a flame retardant, a vulcanizing accelerator and/or an intermediate for synthesizing pesticides.

REFERENCES:
Houben-Weyl, "Methoden der Organischen Chemie", Vierte Auflage, Band XII, Teil. 1, 1963, p. 600.

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