Abstract
3-Methylfuran is an important building block of terpenoid compounds1) and some of these compounds are biologically active, for example as a defence substance of animal.2) Though many methods have been developed for the syntheses of 3-substituted furan derivatives,3) most of them lack the generality as a synthetic method of (3-furanyl) methyl derivative. Tannis has recently reported the construction of 3-substituted furan derivative by using 3-(lithiomethyl) furan or 3-(chloromagnesium methyl) furan, and demonstrated the generality of his method.4)