Azetidinedione urethanes

Details Azetidinedione urethanes Azetidinedione urethanes

1985-12-20

1987-02-10

Berch, Mark L.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D20508, C07D40314, C07D40312

Patent

active

046423427

ABSTRACT:
Novel isocyanato-azetidinedione compounds are provided which have the formula ##STR1## wherein R and R.sub.1 can be independently selected from hydrogen and hydrocarbyl or can be joined together and along with the carbon to which they are attached represent a cycloalkane residue having 4 to 6 ring carbon atoms, y is an integer from 1 to 7 and X is a hydrocarbon radical having a valency of y plus one.
The monoisocyanate compounds are used as intermediates to provide further novel azetidinedione containing derivatives in the form of azetidinedione-isocyanurates (II) and azetidinedione-urethanes (III).
All three classes of compounds can be employed as acid scavenging agents for stabilizing various kinds of halogenated polymer systems. Notably, (I) and (III) form highly useful polyamide-polyureas and polyamide-polyurethanes respectively by reaction with organic polyamines.

REFERENCES:
patent: 3265684 (1966-08-01), Herweh et al.
Ebnother et al., Helvetica Chemica Acta, 42, 1959, pp. 918 to 955.
James C. Martin et al., J. Org. Chem., 36, 1971, pp. 2205 to 2210.

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