29682-44-8, name is 1-Bromo-2,4,5-trichlorobenzene, belongs to chlorides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. COA of Formula: C6H2BrCl3
To a sealed tube were added l -bromo-2,4,5-trichlorobenzene (3.0 g, 12 mmol), 1,2-dimethoxyethane: water ( 10 : 1 , 30 mL), (f)-2-(4-methoxystyryl)-4,4,5,5- tetramethyl- l,3,2-dioxaborolane (C6 4) (3.7 g, 14 mmol ), and potassium carbonate (3.2 g, 24 mmol) . The reaction mixture was degassed for 10 minutes with argon, followed by addition of tetrakis(triphenylphosphine)palladium(0) (0.55 g, 0.48 mmol) . The reaction mixture was degassed for 10 minutes then heated at 90 C for 16 hours. The reaction mixture was poured in to 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 (3.0 g, 80%) : NM R (400 MHz, CDC ) delta 7.73 (s, 1H), 7.50 – 7.45 (m, 3H), 7.20 (d, J = 16.0 Hz, 1 H), 7.02 (d, J = 16 Hz, 1H), 6.92 (d, J = 8.0 Hz, 2H), 3.84 (m, 3H) ; ESIMS m/z 313 ( [Mu + EtaGamma).
The synthetic route of 29682-44-8 has been constantly updated, and we look forward to future research findings.
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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