17318-08-0, The chemical industry reduces the impact on the environment during synthesis 17318-08-0, name is 5-Bromo-1,3-dichloro-2-fluorobenzene, I believe this compound will play a more active role in future production and life.
A stirred mixture of 5-bromo-1,3-dichloro-2-fluorobenzene (2.00 g, 8.20 mmol), l-methoxy-4-vinylbenzene (1.32 g, 9.80 mmol), and triethylamine (20 mL) under argon was degassed for 5 minutes. Palladium(II) acetate (0.0368 g, 0.164 mmol) and 1,1′- bis(diphenylphosphino)ferrocene (0.181 g, 0.328 mmol) were added and the reaction was heated to 90 C for 16 hours. The reaction mixture was poured into water and extracted with ethyl acetate. The combined organic layers were dried over sodium sulfate, filtered, and concentrated. Purification by flash column chromatography provided the title compound as an off-white solid (1.60 g, 67%): lH NMR (300 MHz, CDCb) delta 7.41 (d, J = 8.8 Hz, 2H), 7.31 (s, 1H), 7.37 (s, 1H), 6.96 (d, J = 16.0 Hz, 1H), 6.89 (d, J = 8.8 Hz, 2H), 6.76 (d, J = 16.0 Hz, 1H), 3.84 (s, 3H); ESIMS m/z 297 ([M + H]+).
The chemical industry reduces the impact on the environment during synthesis 5-Bromo-1,3-dichloro-2-fluorobenzene. I believe this compound will play a more active role in future production and life.
Reference:
Patent; DOW AGROSCIENCES LLC; HEEMSTRA, Ronald J.; ROSS, Ronald; DEKORVER, Kyle A.; GRAY, Kaitlyn; KNUEPPEL, Daniel I.; VEDNOR, Peter; MARTIN, Timothy P.; ECKELBARGER, Joseph D.; DAEUBLE, John F.; HUNTER, Ricky; DEMETER, David A.; TRULLINGER, Tony K.; BAUM, Erich W.; BENKO, Zoltan L.; CHOY, Nakyen; CROUSE, Gary D.; LI, Fangzheng; NISSEN, Jeffrey; OLSON, Monica B.; RIENER, Michelle; SPARKS, Thomas C.; WESSELS, Frank J.; YAP, Maurice C.; (981 pag.)WO2016/168059; (2016); A1;,
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