تفاعل #1477788

معادلة التفاعل

2-bromo-1-(2,4-dichlorophenyl)-1-ethanone

1-[2-(2,4-dichlorophenyl)ethyl]ethanediol

4-methylbenzenesulfonic acid

butanol

→

2-(bromomethyl)-2-(2,4-dichlorophenyl)-4-[2-(2,4-dichlorophenyl)ethyl]-1,3-dioxolane

المذيبات

benzene

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةrefluxed for 24 hours
2. 2
   أخرىThe reaction mixture is evaporated
3. 3
   workup.STIRRINGthe residue is stirred for 2 hours with 160 parts of methanol
4. 4
   ترشيحThe precipitated product is filtered off

الإجراء التجريبي

A mixture of 13.6 parts of 2-bromo-1-(2,4-dichlorophenyl)-1-ethanone, 14.1 parts of 1-[2-(2,4-dichlorophenyl)ethyl]ethanediol, 3 parts of 4-methylbenzenesulfonic acid, 80 parts of butanol and 180 parts of benzene is stirred and refluxed for 24 hours. The reaction mixture is evaporated and the residue is stirred for 2 hours with 160 parts of methanol. The precipitated product is filtered off, yielding 2-(bromomethyl)-2-(2,4-dichlorophenyl)-4-[2-(2,4-dichlorophenyl)ethyl]-1,3-dioxolane.

المصدر