N,N',N",N'"-tetrakis(substituted benzyl)-acetylenecarbamide deri

Details N,N',N",N'"-tetrakis(substituted benzyl)-acetylenecarbamide deri N,N',N",N'"-tetrakis(substituted benzyl)-acetylenecarbamide deri

1986-01-30

1988-01-26

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

524 91, C07D23500

Patent

active

047217928

ABSTRACT:
There are provided acetylenecarbamide derivatives of the formula: ##STR1## wherein A represents ##STR2## in which R.sub.1 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, and R.sub.2 represents a C.sub.2 -C.sub.9 alkyl group. These derivatives are useful as stabilizers for polymeric organic substances susceptible to thermal and oxygen-induced degradation.

REFERENCES:
patent: 4448915 (1984-05-01), Terada et al.
patent: 4507417 (1985-03-01), Ishii et al.
patent: 4511491 (1985-04-01), Ishii et al.

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