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ChemicalBook CAS DataBase List 2-bromo-2'-Iodo-1,1'-Biphenyl

2-bromo-2'-Iodo-1,1'-Biphenyl synthesis

6synthesis methods
-

Yield:39655-12-4 73%

Reaction Conditions:

with n-butyllithium in tetrahydrofuran;hexane at -78 - 25; for 2 h;Inert atmosphere;

Steps:


To a solution of 2-bromoiodobenzene (10 mmol) in THF (20 mL) was added n-BuLi (2.5M solution in n-hexane, 2.0 mL, 5.0 mmol) at -78 oC under nitrogen atmosphere. Thereaction mixture was then warmed to 25 oC over a two hours and hydrolyzed with a 1.0 Maqueous hydrochloric acid solution (20 mL). After the aqueous layer was extracted withdiethyl ether (3 x 40 mL), the combined organic layer was dried over MgSO4 andconcentrated under reduced pressure. Upon crystallization from ethanol, 2-bromo-2'-iodobiphenyl was obtained as a colorless needle (2.58 g, 73%).

References:

Shin, Seohyun;Kang, Dongjin;Jeon, Woo Hyung;Lee, Phil Ho [Beilstein Journal of Organic Chemistry,2014,vol. 10,p. 1220 - 1227] Location in patent:supporting information

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