Ethyl vanillate → Ethyl 4-(3-phenylprop-2-ynyloxy)-3-methoxybenzoate

Participants

Reaction Steps

3-Phenylprop-2-ynyl bromide was reacted with ethyl vanillate using the conditions described in Example 1 to give ethyl 4-(3-phenylprop-2-ynyloxy)-3-methoxybenzoate in 70% yield, m.p. 62°-65° C. Following the procedures described in the portion of Example 6 which is concerned with the preparation of starting materials the product so obtained was reacted with thiazol-2-yl-lithium and the resultant product was reacted with ethylmagnesium iodide to give the required starting material as an oil in 61% yield.

Provenance & Evidence