Aromatic dianhydrides

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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26034674, C07D30932, C07D30760

Patent

active

042632099

ABSTRACT:
Novel aromatic dianhydride compounds are described of the formula ##STR1## wherein Ar, R' and R" are named substituents, and both x's are either zeros or ones.

REFERENCES:
patent: 3585123 (1971-06-01), Godar et al.
patent: 3590076 (1971-06-01), Heintzelman et al.

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