Sodium Hydroxide → (2,2-dibromoethenyl)benzene
反応式
[Br:1][CH2:2][CH2:3][C:4]1[C:5](Br)=[C:6](Br)[CH:7]=[CH:8][CH:9]=1.[OH-].[Na+].[Br-:14].C([N+](CC)(CC)CCCCC)C>C(Cl)Cl>[Br:1][C:2]([Br:14])=[CH:3][C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][CH:9]=1参加物
5
実験手順
A solution of 147.90 g. (0.431 mole) of 2-bromoethyldibromobenzene in 250 ml. of methylene chloride was stirred for 7 ks (2 hours) at 5 Hz (300 rpm) at 313 K. (40° C.) with 150 g (2.25 mole) of 60 percent sodium hydroxide solution and 3.12 g. (0.0124 mole) of triethylpentyl ammonium bromide. The product was washed with three 500-ml portions of water, dried over calcium sulfate (Drierite), and stripped of solvent in a rotary evaporator at a bath temperature of 323 K. (50° C.). The yield of product was 106.97 g. (77.2 per cent of theory). GC analysis showed 27.1 percent of the desired ar-dibromostyrene, the remainder being largely unreacted starting material.