Spirodilactam diamines

Details Spirodilactam diamines Spirodilactam diamines

1989-02-23

1990-07-03

Sutto, Anton H.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548147, 548216, 548323, 548411, 540543, 544 6, 544 70, 544230, 546 15, C07D48710

Patent

active

049392700

ABSTRACT:
Primary diamines, employed in stoichiometric excess, react with a spirodilactam precursor selected from 4-oxoheptandioic acid compounds or 1,6-dioxaspiro[4.4]nonane-2,7-diones, to produce 1,6-diaza[4.4]spirodilactams having an amino-containing substituent on each spiro ring nitrogen atom. The spirodilactams are useful in the production of thermoplastic polyamides by reaction with diacids and as curing agents for epoxy resins in the production of thermoset resins.

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