Wanyi Tan, J. Zou, Dongyu Gao
Jun 1, 2016
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0
Influential Citations
14
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Journal
Advanced Electronic Materials
Abstract
Synthesis of (m-bromophenyl)diphenylphosphine oxide ( Compound 2 ) : A solution of 1,3-dibromo-benzene (3.5 g, 15.04 mmol) in anhydrous THF (200 mL) was degassed under N 2 for 30 min, and then cooled to –78 °C. n- Butyllithium (2.5 M solution in hexane, 7.8 mL, 19.55 mmol) was added dropwise via syringe. The solution chlorodiphenylphosphine (4.1 mL, 22.56 mmol) was added via syringe. The reaction mixture was stirred overnight whilst gradually warming to room temperature. Upon concentration, the residue was treated with water and extracted by CH 2 Cl 2 . The organic layer was separated, dried over anhydrous MgSO 4 , filtered and concentrated under reduced pressure. The residue was subject to column chromatography over silica gel using petroleum ether/CH 2 Cl 2 as the elute to afford a white solid ( compound 1 ), which was used directly for oxidation.