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1)  α-bromo-2,4-dichloroacetophenone
α-溴-2,4-二氯苯乙酮
1.
The α-bromo-2,4-dichloroacetophenone, a key intermediate in synthesis of azaconazole, metaconazole, etaconazole and propiconazole was prepared by reacting bromine with 2,4-dichloroacetophenone in blended solvent in the presence of mixed metal halide catalyst.
在混合金属卤化物催化剂存在下,溴与2,4-二氯苯乙酮在混合溶剂中反应得到戊环唑、甲环唑、乙环唑、丙环唑中间体α-溴-2,4-二氯苯乙酮
2)  α-Bromo-2,4-dichloro acetophenone
α-溴代-2,4-二氯苯乙酮
3)  a-Bromo-2,4-dichloro acetophenone
a-溴-2,4-二氯苯乙酮
4)  ω-Bromo-2,4-dichloroacetophenone
ω-溴-2,4-二氯苯乙酮
1.
Etaconazole was synthesized by bromating 2,4-dichloroacetophenone with Br2,and then dehydratingbetween the resulted ω-Bromo-2,4-dichloroacetophenone and 1,2-butanediol with p-toluenesulfonic acid as catalyst,followed by condensation the obtained 2-(2,4-dichlorophenyl) -2-bromomethyl-4-ethyl-1,3-dioxolane with 1,2,4-triazoleNa salt.
将2,4-二氯苯乙酮与溴发生取代反应生成ω-溴-2,4-二氯苯乙酮,然后在催化剂对甲基苯磺酸存在下,ω-溴-2,4-二氯苯乙酮与1,2-丁二醇发生脱水反应得到2-(2,4-二氯苯基)-2-溴甲基-4-乙基-1,3-二氧戊环,最后缩酮化合物与三氮唑钠缩合得到乙环唑。
5)  a-Bromo-2,4-dichloro acetophenone
a-溴代-2,4-二氯苯乙酮
6)  2,4'-dibromoacetophenone
2,4′-二溴苯乙酮
补充资料:1,3-二氯苯
   分子式  C6H4Cl2
   性质  无色液体,沸点172℃。凝固点-24℃,相对密度1.288(20/4℃)。折射率nD(20.9℃)1.5457。溶于乙醇、乙醚,不溶于水。
     用途  广泛用于染料, 医药, 农药等行业的中间体。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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