Synthesis of new tetraalkoxyquinolines from parsley and dill secondary metabolites

Efficient preparative procedures for the synthesis of 2,3-disubstituted 5,6,7,8-tetraalkoxyquinolines starting from tetraalkoxybenzaldehydes are reported. The latter are available from plant (polyalkoxy)(allyl)benzenes, secondary metabolites of parsley and dill seeds.