The development of intramolecular carbonyl-ene type cyclocondensation of oxygenated o-phenylallylbenzaldehydes in refluxing decalin is reported. The facile and easy-to-operate thermolytic rearrangement procedure generates substituted naphthalenes in good to excellent yields.
Key words
carbonyl-ene type - cyclocondensation -
o-carbonyl allylbenzenes - substituted naphthalenes