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Synthetic Route of 6941-75-9, Having gained chemical understanding at molecular level, chemistry graduates may choose to apply this knowledge in almost unlimited ways, as it can be used to analyze all matter and therefore our entire environment.

A mixture of 4-bromophthalic anhydride (25 g) in formamide (75 ml) was heated at 2000C for 16 hours then allowed to cool to room temperature. The reaction mixture was diluted with water (200 ml), filtered, the filter cake was washed with water then diethyl ether and sucked dry to give 20.85 g of light mustard solid.280 ml of 1 M Borane-THF complex was added dropwise to a stirred solution of 4-bromophthalimide (20.85 g; 92.2 mmol) in anhydrous THF (200 ml) at O0C then heated at reflux overnight. The reaction was cooled to O0C then treated cautiously with methanol (100 ml) followed by 2M HCI (100 ml) then heated at reflux for 3 hours. The reaction mixture was cooled and the organics evaporated. The aqueous was diluted with water (100 ml) the extracted with DCM (x3). The aqueous was basified with 2M NaOH then extracted with DCM (x3). The combined DCM extracts were dried (MgSO4), filtered and evaporated to give 6.99 g of 5-bromo-2,3-dihydro-1H-isoindole as a dark brown gummy solid. 1H NMR (DMSO-d6) 7.45 (1H, s), 7.36 (1 H1 d), 7.20 (1H, d), 4.05 (4H, s).

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Reference:
Patent; ASTEX THERAPEUTICS LIMITED; WO2008/44054; (2008); A2;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem