Application of 77326-36-4, 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. 77326-36-4, name is 2-Amino-6-fluorobenzonitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.
It was prepared as described for 8. Starting from 2-amino-6-fluorobenzonitrile (318 mg, 2.31 mmol) in 1,2-dichloroethane (25 mL) and enone 7 (R9 = i-Pr) (272 mg, 1.53 mmol) in 1,2-dichloroethane (15 mL), a crude product (383 mg) was obtained and subjected to column chromatography [silica gel (19 g), hexane/AcOEt/25% aqueous NH4OH mixtures as eluent]. On elution with hexane/AcOEt/25% aqueous NH4OH 98:2:0.1, huprine 10 (220 mg, 42% yield) was obtained as a beige solid.A solution of huprine 10 (220 mg, 0.74 mmol) in CH2Cl2 (15 mL) was filtered through a PTFE 0.45 mum filter, treated with 1.81 N methanolic solution of HCl (1.24 mL, 2.24 mmol), and the resulting solution was evaporated under reduced pressure. After recrystallization of the resulting solid residue from AcOEt/MeOH 30:1 (9.3 mL), 10·HCl (138 mg) was obtained as a beige solid, mp >300 C (dec.) (AcOEt/MeOH 30:1). IR (KBr) nu 3500-2500 (max at 3494, 3370, 3312, 3201, 3158, 3024, 2958, 2929, 2891, 2833, 2750, 2669, C-H, N-H, and N+-H st), 1640, 1595, and 1548 (ar-C-C and ar-C-N st) cm-1; 1H NMR (500 MHz, CD3OD) delta 0.87 (d, J = 7.0 Hz, 3H) and 0.89 (d, J = 7.0 Hz, 3 H) [9-CH(CH3)2], 1.97 (dm, J = 12.5 Hz, 1H, 13-Hsyn), 2.02-2.12 [complex signal, 2H, 13-Hanti and 9-CH(CH3)2], superimposed in part 2.08 (br d, J = 17.5 Hz, 1H, 10-Hendo), 2.52 (br dd, J = 17.5 Hz, J’ = 5.0 Hz, 1H, 10-Hexo), 2.80 (m, 1H, 7-H), 2.86 (dm, J ? 18.0 Hz, 1H, 6-Hendo), 3.21 (dd, J = 18.0 Hz, J’ = 5.5 Hz, 1H, 6-Hexo), 3.41 (m, 1H, 11-H), 4.85 (s, NH2 and NH+), 5.58 (dm, J = 5.0 Hz, 1H, 8-H), 7.34 (ddd, J = 13.5 Hz, J’ = 8.0 Hz, J = 1.0 Hz, 1H, 2-H), 7.56 (br d, J = 8.5 Hz, 1H, 4-H), 7.82 (dddm, J ? J’ ? 8.5 Hz, J = 5.5 Hz, 1H, 3-H); 13C NMR (75.4 MHz, CD3OD) delta 21.4 (CH3) and 21.9 (CH3) [9-CH(CH3)2], 27.2 (CH, C11), 27.9 (CH, C7), 29.6 (CH2, C13), 31.7 (CH2, C10), 35.9 [CH, 9-CH(CH3)2], 36.1 (CH2, C6), 107.2 (C, d, J ? 11.5 Hz, C12a), 112.2 (CH, d, J = 23.3 Hz, C2), 115.7 (C, C11a), 116.3 (CH, C4), 122.2 (CH, C8), 134.9 (CH, d, J ? 11.5 Hz, C3), 140.6 (C, C4a), 144.5 (C, C9), 152.9 (C) and 155.3 (C) (C5a and C12), 161.1 (C, d, J = 253 Hz, C1). Anal. Calcd for C19H21FN2·HCl·3/4H2O (346.36): C, 65.89; H, 6.84; N, 8.09; Cl, 10.24. Found: C, 65.55; H, 6.62; N, 7.99; Cl, 10.21.
The synthetic route of 2-Amino-6-fluorobenzonitrile has been constantly updated, and we look forward to future research findings.
Reference:
Article; Defaux, Julien; Sala, Marta; Formosa, Xavier; Galdeano, Carles; Taylor, Martin C.; Alobaid, Waleed A.A.; Kelly, John M.; Wright, Colin W.; Camps, Pelayo; Munoz-Torrero, Diego; Bioorganic and Medicinal Chemistry; vol. 19; 5; (2011); p. 1702 – 1707;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts