Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-07-25
1977-04-26
Thomas, Jr., James O.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260 304R, 260 78TF, 260326A, 260326N, 260326S, 2603463, 260516, 260546, C07C 6514
Patent
active
040200698
ABSTRACT:
Aromatic tetracarboxylic acids can be prepared by effecting reaction between a 4-nitro-N-alkylphthalimide with an aromatic dihydroxy compound in the presence of potassium carbonate as a catalyst and using dimethyl sulfoxide as a solvent.
REFERENCES:
patent: 3879428 (1975-04-01), Heath et al.
Dimethyl Sulfoxide as a Reaction Solvent, Crown Zellerbach, Chemical Products Division, Camas, Washington (1968), pp. 2, 7-15.
Soine et al, Inorganic Pharm. Chem., 7th edition, Lea & Febiger, Philadelphia, Pa. pp. 288-289 (1961).
Johnson Donald S.
Relles Howard M.
Breitenstein G. T.
Cohen Joseph T.
General Electric Company
Squillaro Jerome C.
Thomas, Jr. James O.
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