Isoindolinone/isoindoline

See azo pigments group isoindolinone/isoindoline sub-group. Isoindoline yellow... 

Although of comparatively good light- and weatherfastness, solvent and migration resistance, only a few members of the isoindolinone and isoindoline families are commercially available as pigments. Chemically classified as heterocyclic azome-... 

The methine type comprises isoindoline derivatives which, like tetrachloro-isoindolinone pigments, have only recently been described. One or usually two equivalents of a compound containing an activated methylene moiety are attached to one equivalent of isoindoline. The list of compounds featuring activated methylene groups includes cyanacetamide or heterocycles such as barbituric acid or tetrahydroquinolinedione. 

Isoindolinones and Isoindolines. Tetracliloroisoindolinone pigments are characterized by very good lightfastness, heat stability, migration resistance, and chemical inertness. Although Pigment Yellow 110, a red-shade yellow, is relatively weak, it finds extensive use in automotive and... 

Most of the isoindole derivatives that have been used as substrates for phthalazine syntheses are in fact 1,3-isoindolinediones [phthalimides (244), 1,3-isoindolinediimines (245), or 3-hydroxy-1-isoindolinones (246)]. According to their substituents, these substrates may or may not require an ancillary synthon to furnish phthalazines. The use of each type of isoindoline derivative is discussed in an appropriate subsection that follows. 

Schi-f-f bases are probably intermediately -formed during the deoxigenation reactions o-f aromatic nitro compounds with carbon monoxide <150 atm), at 165-170"C, in the presence o-f ortho-phtalaldehyde and with Rh final products are N-aryl-isoindolin-l-ones hydrogen atom o-f the -free carbonyl -function ... 

A sequence involving intermolecular Pd-catalyzed carbonylative amidation followed by intramolecular Michael addition has been employed for the construction of isoindolin-l-ones [97dj. For example, treatment of 147 with 4-methoxyaniline under standard conditions for Pd-catalyzed carbonylative coupling gave isoindolinone... 

BASF Perylene, isoindolines/isoindolinones, quinophthalone, phthalocyanine specialties, anthraquinones... 

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