Brominated phosphoramidates

Details Brominated phosphoramidates Brominated phosphoramidates

1974-12-31

1977-02-08

Sutto, Anton H.

Chemistry of carbon compounds

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

260937, 427394, 428276, C07F 915

Patent

active

040072363

ABSTRACT:
Brominated phosphoramidates of the structure ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;
R.sup.3 is selected from the group consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, hydroxy substituted alkyl of from 1 to 8 carbon atoms and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;
R.sup.4 is independently selected from the group consisting of R.sup.3 and a group of the structure ##STR2## wherein R is selected from the group consisting of alkylene of from 2 to 8 carbon atoms; phenylene, biphenylene and dicyclohexylene; provided that at least one of R.sup.1 and R.sup.2 contains a bromine atom and at least one of R.sup.3 and R.sup.4 contains a replaceable hydrogen.
The phosphoramidates of the present invention are useful to impart a flame retardant property to combustible materials.

REFERENCES:
patent: 3159664 (1964-12-01), Bartlett
patent: 3597503 (1971-08-01), Wilson et al.
patent: 3887655 (1975-06-01), Shim

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