Unsymmetrical azonitriles

Details Unsymmetrical azonitriles Unsymmetrical azonitriles

1974-10-10

1977-08-02

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604655R, 526218, 526219, C07C10702

Patent

active

040395278

ABSTRACT:
Unsymmetrical azonitriles of the formula, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently straight- or branched-chain alkyl having 1 to 7 carbon atoms or alkoxy substituted straight- or branched-chain alkyl having 2 to 11 carbon atoms but at least one of R.sup.1 and R.sup.2 and at least one of R.sup.3 and R.sup.4 must be different, have good efficiency as initiator for polymerizations or copolymerizations of vinyl monomers. These unsymmetrical azonitriles can be prepared by oxidizing a corresponding unsymmetrical hydrazo compound.

REFERENCES:
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patent: 2492763 (1949-12-01), Pinkey
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patent: 2666758 (1954-01-01), Johnson et al.
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patent: 3192196 (1965-06-01), Vidal et al.
patent: 3775395 (1973-11-01), Koyanagi et al.
patent: 3783148 (1974-01-01), Fuchs et al.
patent: 3876622 (1975-04-01), Motokawa

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