Monobenzone → 1-Benzyloxy-4-(2-phenethyloxyethoxy)benzene

참여 물질

반응 조건

반응 단계

10 g of 4-benzyloxyphenol in 120 ml of dimethylformamide were treated with 2.4 g of a 50% sodium hydride dispersion in mineral oil and the mixture was stirred for 5 minutes. 12.2 g of 2-(2-phenylethoxy)ethyl methanesulfonate [prepared as described in Example 1(a)] were added and the mixture was heated at 60° C. for 0.5 hour with stirring. The mixture was evaporated to dryness and the residue was partitioned between 2N sodium hydroxide and ethyl acetate. The organic phase was separated, washed well with water, dried over sodium sulfate, filtered and evaporated. The residue was recrystallized from methylcyclohexane to give 16.1 g (93%) of 1-benzyloxy-4-(2-phenethyloxyethoxy)benzene of melting point 46°-49° C.

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