Bis(benzil) type compounds containing one or two furan moieties

Details Bis(benzil) type compounds containing one or two furan moieties Bis(benzil) type compounds containing one or two furan moieties

1975-05-12

1977-06-28

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603478, C07D30746

Patent

active

040325466

ABSTRACT:
A monomeric bis (benzil) composition is produced by reacting furfural with an aromatic dialdehyde, the product having the structure: ##STR1## wherein R is a difunctional aromatic radical, R' is a hydrogen, a phenylene, or a furan radical, and R" is a hydrogen or or an alkyl substituent. These monomers are used to prepare cross-linked polyquinoxaline resins which have enhanced thermal and mechanical properties. Polymerization of these bis(benzil) monomers occurs by the reaction of the carbonyl groups with a tetraamine monomer. Cross-linking of the resulting polymers chains is accomplished by reaction of the furan end-cap group in a Diels-Alder reaction with a bis(dieneophile) substantially aromatic in composition.

REFERENCES:
patent: 3580925 (1971-05-01), Manos

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