Process for the preparation of delta-3-carene diadducts

Details Process for the preparation of delta-3-carene diadducts Process for the preparation of delta-3-carene diadducts

1991-04-03

1992-06-02

Kight, III, John

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549233, 528403, C07D30794

Patent

active

051188198

ABSTRACT:
A process for the preparation of a carene-dienophile diadduct in high yield is provided. Delta-3-carene is reacted with a Diels-Adler dienophile, preferably maleic anhydride, at a dienophile:carene molar ratio of at least 1.5:1 and a temperature of at least 150.degree. C. The diadduct produced by the reaction of delta-3-carene and a Diels Alder dienophile, preferably maleic anhydride, is useful as a curing agent in epoxy resin systems.

REFERENCES:
patent: 4107420 (1978-08-01), Schluenz et al.
patent: 4946969 (1990-08-01), Parker
patent: 5041561 (1991-08-01), Parker

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