Substituted phenyl phosphinites and phosphonites

Details Substituted phenyl phosphinites and phosphonites Substituted phenyl phosphinites and phosphonites

1979-07-17

1980-12-09

Sutto, Anton H.

Chemistry of carbon compounds

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

260944, 260951, 260962, 2604658D, C07F 946, C07F 948

Patent

active

042384222

ABSTRACT:
Novel phosphinites and phosphonites of general formula: ##STR1## where R.sub.2 is an electron-donating substituent, R.sub.1 and R.sub.3 are electron-donating substituents or hydrogen atoms, provided that they are not both hydrogen atoms, or either R.sub.1 or R.sub.3 forms part of a fused alicyclic ring with R.sub.2, R is alkyl or cycloalkyl, and n and m are integers, each being either 1 or 2, provided that (m+n) equals 3, and when n is 2, the substituents on each aromatic ring may be the same or different, and their use as catalysts for the dimerisation of acrylonitrile to give predominantly straight-chain C.sub.6 dimers.

REFERENCES:
patent: 4102915 (1978-07-01), Jennings et al.
patent: 4126632 (1978-11-01), Hogan et al.
patent: 4129587 (1978-12-01), Jennings et al.
patent: 4138428 (1979-02-01), Jennings et al.
Ugo, "Aspects of Homogeneous Catalysis", vol. 2, Chapter 4, pp. 159-188, (1974).

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