Hexahydrophthalides

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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C07D30777

Patent

active

044916671

ABSTRACT:
A lactone of the formula: ##STR1## wherein R.sub.1 through R.sub.8 are independently hydrogen or C.sub.1-5 alkyl, obtained by decarboxylation condensation reaction of a saturated alicyclic 1,2-dicarboxylic acid anhydride, is a good curing agent for thermosetting resins.

REFERENCES:
patent: 2007813 (1935-07-01), Scheuing et al.
patent: 2731475 (1956-01-01), Hillyer et al.

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