Some common heterocyclic compound, 110407-59-5, name is 2-Chloro-4-fluorobromobenzene, molecular formula is C6H3BrClF, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. COA of Formula: C6H3BrClF
A suspension of 1-bromo-2-chloro-4-fluorobenzene (4.19 g, 20 mmoles), piperazine (10.32 g, 120 mmoles), sodium tert-butoxide (2.3 g, 1.5 mmoles), tris(dibenzylideneacetone)dipalladium (366 mg, 0.4 mmoles) and racemic (-)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (747 mg, 1.2 mmoles) in toluene (2 mL) was heated to 120 C. overnight. The mixture was cooled, filtered and the filtrate concentrated under reduced pressure. The crude residue was purified by column chromatography (silica gel, 0-5% 2N methanolic ammonia in DCM) to provide the title compound.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 110407-59-5, its application will become more common.
Reference:
Patent; Link, James T.; Chen, Yixian; Jae, Hwan-Soo; Patel, Jyoti R.; Pliushchev, Marina A.; Rohde, Jeffrey J.; Shuai, Qi; Sorensen, Bryan K.; Winn, Martin; Wodka, Dariusz; Yong, Hong; US2005/277647; (2005); A1;,
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