Ps. Rao et al., AN EFFICIENT SYNTHESIS OF DIBENZOYL DIALKYL BENZODIFURANS UNDER PHASE-TRANSFER CATALYSIS CONDITIONS AND THEIR ANTIFEEDANT ACTIVITY, Indian Journal of Heterocyclic Chemistry, 8(1), 1998, pp. 51-54
An efficient route (PTC) for dibenzoyldialkyl benzodifurans (IIa-d and
IVa-b) has been developed by the base catalyzed reaction of substitut
ed resorcinols (Ia-d and IIIa-b) with omega-bromo acetophenone in good
yields.