Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1984-05-07
1986-03-18
Berch, Mark L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
544193, 544222, 521159, 521161, 528 68, 528 69, 528 73, C07D20510, C07D40314, C07D40312
Patent
active
045767475
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.
Poshkus et al., J. Org. Chem. 30, 2466, (1965).
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.
Berch Mark L.
Rose J. S.
The Upjohn Company
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