Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 24566-79-8, name is N-(6-Bromohexyl)phthalimide, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of N-(6-Bromohexyl)phthalimide
2-[6-(4-phenyl-1-piperidinyl)hexyl]-1H-isoindole-1,3(2H)-dione: To the 500 ml RB-flask was added 4-phenylpiperidine hydrochloride (5 g, 25 mmol), N-(6-bromohexyl)phthalimide (15.5 g, 50 mmol), N,N-diisopropylethylamine (21.8 ml, 125 mmol), tetrabutylammonium iodide (0.2 g), and dioxane (250 ml) at room temperature. The reaction mixture was stirred at 100 oC for 72 h. The solvent was removed in vacuo and the crude product was purified by flash chromatography (98:2=Chloroform: 2N ammonia in methanol) to afford 7.67 g of the desired product (77% yield): 1H NMR (400 MHz, CDCl3) delta 7.78-7.79 (m, 2H), 7.74-7.65 (m, 2H), 7.32-7.14 (m, 5H), 3.69 (t, 2H, J=7.35 Hz), 3.06 (d, 2H, J=11.0 Hz), 2.49 (quintet, 1H, J=7.6 Hz), 2.36 (t, 2H, J=7.6 Hz), 2.02 (t, 2H, J=12.5 Hz), 1.82 (br s, 4H), 1.69 (t, 2H, J=6.3 Hz), 1.54 (br s, 2H), 1.37 (br s, 4H); ESMS m/e: 391.3 (M+H) +; Anal. Calc. for C25H30N2O2+0.2H2O: C, 76.19; H, 7.77; N, 7.11. Found: C, 76.14; H, 7.38; N, 7.13.
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Reference:
Patent; Borowsky, Beth; Blackburn, Thomas P.; Ogozalek, Kristine; US2003/82623; (2003); A1;,
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