Synthetic Route of 1029691-06-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1029691-06-2, name is 2-(3-Oxocyclopentyl)isoindoline-1,3-dione belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below.
PREPARATION 2(R,S)-2-(7-Bromo-1,2,3,4-tetrahydro-cyclopenta[b]indol-2-yl)-isoindole-1,3-dione In a 5 L flask is mixed (R,S)-2-(3-oxo-cyclopentyl)-isoindole-1,3-dione (295.3 g, 1.29 mol), 4-bromophenyl hydrazine-HCl (287.9 g, 1.29 mol) and glacial acetic acid (3 L) with mechanical stirring. The reaction is refluxed for 5 h, and then cooled to room temperature. The reaction is poured into water (4 L) with rapid stirring. The solid is collected by vacuum filtration, washed with water (4 L), and air-dried for 30 min. The solid is slurried with MeOH (700 mL), collected by vacuum filtration and rinsed with MeOH (100 mL). The gray solid is air dried for 2 h, then dried overnight in a 50 C. vacuum oven to obtain 414.67 g (84%) of the title compound as a dark solid. ES/MS m/z (79Br/81Br) 381/383 [M+H]+.
The synthetic route of 2-(3-Oxocyclopentyl)isoindoline-1,3-dione has been constantly updated, and we look forward to future research findings.
Reference:
Patent; ELI LILLY AND COMPANY; US2011/118326; (2011); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem