Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1977-07-05
1978-10-24
Coughlan, Jr., Paul M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
260299, 260270PD, C07F 1500, C07F 1504, C07F 1506
Patent
active
041222610
ABSTRACT:
This invention relates to novel compounds of the isoindolenine series. More particularly, the present invention relates to certain novel 1-imino-3-(4-imino-5-thiazolidinylidene)isoindolines, 1-imino-3-(4-imino-2-thiazolin-5-ylidene)isoindolines, water-insoluble pigments prepared therefrom, and to methods for their preparation.
REFERENCES:
patent: 2739154 (1956-03-01), Rosch et al.
patent: 3004944 (1961-10-01), Kempermann et al.
patent: 3897439 (1975-07-01), Fry
Ambrosiano Nicholas A.
Crounse Nathan N.
Coughlan, Jr. Paul M.
Fletcher Lynn T.
Rivers Diana G.
Sterling Drug Inc.
Wyatt B. Woodrow
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