Aceperinone dyes for bulk dyeing of Kapron was written by Krasovitskii, B.M.;Kravchenko, E. F.;Shevchenko, E. A.. And the article was included in Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation) in 1963.Safety of 8,9,10,11-Tetrachloro-12H-isoindolo[2,1-a]perimidin-12-one This article mentions the following:
Adding equimol. amounts of 5,6-diaminoacenaphthene and the desired anhydride of an o-phthalic or naphthalic acid to glacial AcOH, refluxing 3-4 hrs., cooling, filtering, and washing with cold AcOH and H2O gave the following dyes (% yield, m.p., and color given): phthaloaceperinone (I), 62, 287掳, -; tetrachlorophthaloaceperinone (II), 68, 294-5掳 -; naphthaloaceperinone (III), 64, 230掳, light bordeaux; 4(5?)-benzoylnaphthaloaceperinone (IV), 90, 223-4掳, reddish violet. These aceperinones were more deeply colored than the corresponding perinones. The maximum absorbance of I and II was higher and shifted to longer 纬 than that of III. Kapron dyeings obtained with III and IV were more resistant to washing, crocking, and ironing, but less lightfast, than those obtained with the corresponding periones. In the experiment, the researchers used many compounds, for example, 8,9,10,11-Tetrachloro-12H-isoindolo[2,1-a]perimidin-12-one (cas: 20749-68-2Safety of 8,9,10,11-Tetrachloro-12H-isoindolo[2,1-a]perimidin-12-one).
8,9,10,11-Tetrachloro-12H-isoindolo[2,1-a]perimidin-12-one (cas: 20749-68-2) belongs to indole derivatives. In addition to tryptophan, indigo, and indoleacetic acid, numerous compounds obtainable from plant or animal sources contain the indole molecular structure. More than 200 indole derivatives have already been marketed as drugs or are under advanced stages of clinical trials.Safety of 8,9,10,11-Tetrachloro-12H-isoindolo[2,1-a]perimidin-12-one
Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles