1-(Triphenylphosphoranylidene)acetone → 1-(5-Methoxy-1-benzofuran-3-yl)propan-2-one

Participants

Reaction Steps

A mixture of 5-methoxy-benzofuran-3 (2H)-one (1.64 g, 10 mmol) and 1-triphenylphosphoranylidene-2-propanone (4.77 g, 15 mmol) was refluxed in toluene (100 ml) for 48 hrs. At the end, reaction mixture was concentrated and loaded over silica-gel column. The column was eluted with hexane (500 ml) and later with 25% ethyl acetate. The product, 1-(5-methoxy-1-benzofuran-3-yl)acetone was obtained as a red oil. Yield: 1.1 g (53%); 205 (M+H).

Provenance & Evidence