Manufacture of phosphorus nitride esters

Chemistry of carbon compounds – Dipeptides – e.g. – aspartame – anserine – carnosine – etc.

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260927N, 427394, 428921, C07F 921

Patent

active

039579271

ABSTRACT:
Cyclic phosphorus nitride esters are prepared as flameproofers of high durability for use on regenerated cellulose. The known synthesis from cyclic phosphorus nitride chlorides with alcohols in the presence of amines is controlled under specific temperature conditions such that desired side-reactions permit the production, in a simple manner and in very high yields, of products showing a durability to washing not hitherto achieved.

REFERENCES:
patent: 2586312 (1952-02-01), Dishon et al.
patent: 3795526 (1974-03-01), Bergeron

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