4-Fluorophenol → 2-(4-fluorophenoxymethyl)-3,4-dihydro-2H-pyran

Beteiligte Stoffe

Reaktionsschritte

A mixture of a solution of 247 mg of p-fluorophenol in 1 ml of dimethylformamide with 87 mg of 55% sodium hydride was stirred at room temperature for 30 minutes. 537 mg of 2-tosyloxymethyl-3,4-dihydro-2H-pyran were then added to the mixture, which was allowed to react at 90° C. for 3 hours. Thereafter, the mixture was treated and the product purified essentially as described in Example 34(a) to give 102 mg of 2-(4-fluorophenoxymethyl)-3,4-dihydro-2H-pyran as a colourless oil.

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