A new route for the synthesis of alkyloxy stilbenes from hydroxy benzaldehydes is developed by a combination of one-pot reactions. Tandem one-pot O-alkylation-Wittig and O- alkylation-Wittig–Heck reactions offer a simple access to conjugated alkyloxy stilbenes. A highly conjugated tetra (p-alkyloxystyryl) benzene was synthesized from 1, 2, 4, 5- tetrabromobenzene involving a series of one-pot operations following the O-alkylation- ...