Synthèses dans le domaine des hydrocarbures cancérigènes II

6‐7‐9‐10‐tetramethyl‐1‐2‐benzanthracene and 1′‐4′‐dimethyl‐3‐4‐(2′‐3′‐naphto)‐pyrene have been prepared. Attempts to synthesise 11‐12‐dimethylanthanthrene and 9‐10‐dimethyl‐1‐2‐3‐4‐5‐6‐tribenzanthracene have so far failed. Condensation products from β‐(1‐naphthoyl), β‐(2‐naphthoyl) and β‐(2‐tetrahydronaphthoyl)‐acrylic acids with dicyclohexenyl and 2‐3‐dimethylbutadiene have been prepared. These afford further proof of the structure assigned to the β‐(aroyl)‐acrylic acids (2). Copyright © 1950 Wiley‐VCH Verlag GmbH & Co. KGaA, WeinheimSCOPUS: ar.j