Polyphosphinites and a process for their preparation

Details Polyphosphinites and a process for their preparation Polyphosphinites and a process for their preparation

1978-01-23

1979-07-31

Sutto, Anton H.

Chemistry of carbon compounds

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

260943, C07F 932

Patent

active

041630343

ABSTRACT:
Compounds of the formula ##STR1## WHEREIN Z is alkyl with 2 to 6 carbom atoms, x is oxygen, NH or sulfur, n and m are integers from 2 to 6, r is zero or 1, R.sup.4, R.sup.5 R.sup.6 and R.sup.7 are hydrogen or methyl and R.sup.3 is methyl, ethyl or phenyl. They are obtained by reacting 1 mole of a compound of formula

REFERENCES:
patent: 3014910 (1961-12-01), Birum

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