Reference of 18648-66-3, The chemical industry reduces the impact on the environment during synthesis 18648-66-3, name is 2-(4-Bromophenyl)-1,1-diphenylethylene, I believe this compound will play a more active role in future production and life.
A flask was charged with a mixture of 3-(4-vinylphenyl)-9-ethylcarbazole (1, 0.3 g, 1.01 mmol), 2-(4-bromophenyl)-1,1-diphenylethylene (triPE, 0.28 g, 0.84 mmol), palladium acetate(Pd(OAc)2, 2.3 mg, 0.01 mmol), P(o-tolyl)3 (15 mg, 0.05 mmol),dimethylformamide (8 mL) and trimethylamine (3 mL). The flaskwas degassed and purged with argon. The reaction mixture washeated at 90 C for 4 h under argon atmosphere. Then, it wasfiltered, and was purified by column chromatography using hexane/ethyl acetate (50/1) as an eluent. The target product wasrecrystallized from the eluent mixture of solvents. The yield ofyellow crystals was 43% (0.2 g). Mp 219-220 C. MS (APCI, 20V),m/z(%): 553 ([MH], 100). 1H NMR (400 MHz, CDCl3, d, ppm): 1.49(t, J 7.2 Hz, 3H, CH3), 4.40 (q, J 7.2 Hz, 2H, NCH2), 7.01 (s, 1H, CH),7.07 (d, J 8.4 Hz, 2H, Ar), 7.13 (d, J 6.3 Hz, 2H, Ar), 7.27e7.53 (m,16H, Ar, 2CH), 7.62 (d, J 8.3 Hz, 2H, Ar), 7.73e7.78 (m, 3H, Ar), 8.20(d, J 8.4 Hz, 1H, Ar), 8.34 (s, 1H, Ar). 13C NMR (100 MHz, CDCl3, d,ppm): 13.9 (CH3), 37.7 (CH2), 108.6, 108.7, 118.7, 119.0, 120.5, 123.1,123.5,125.0,125.9,126.1,127.0,127.4,127.5,127.6,127.8,127.9,128.2,128.8, 129.9, 130.4, 131.7, 135.5, 135.9, 136.8, 139.5, 140.4, 141.4,142.6, 143.4. IR. nmax in cm1 (KBr): (CeH Ar) 3048, 3021; (CeH)2970, 2929; (C]C Ar) 1597, 1456, 1443; (CeN) 1233; (trans, CH]CH) 978; (CeH, Ar) 801, 761, 701. Elemental analysis. Calcd. forC42H33N (%): C 91.43, H 6.03, N 2.54. Found (%): C 91.36, H 6.09, N2.64.
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-(4-Bromophenyl)-1,1-diphenylethylene, other downstream synthetic routes, hurry up and to see.
Reference:
Article; Tomkeviciene; Sutaite; Volyniuk; Kostiv; Simkus; Mimaite; Grazulevicius; Dyes and Pigments; vol. 140; (2017); p. 363 – 374;,
Bromide – Wikipedia,
bromide – Wiktionary