반응 #1665629

반응 방정식

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

용매

benzene

반응 조건

후처리

1. 1
   온도refluxed for 24 hours
2. 2
   기타The reaction mixture is evaporated
3. 3
   workup.STIRRINGthe residue is stirred for 2 hours with 160 parts of methanol
4. 4
   여과The precipitated product is filtered off

실험 절차

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.

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