Acid-catalyzed rearrangement of cyclobutanols. Syntheses of chrysenes, cyclopentenophenanthrenes, and diarylmethanes
作者:Edward Lee-Ruff、Alan C. Hopkinson、Hira Kazarians-Moghaddam、Brij Gupta、Morris Katz
DOI:10.1139/v82-026
日期:1982.1.15
Acid-catalyzed reactions of 8-aryl or 8,8-diarylbicyclo[4.2.0]oct-2-en-7-ols lead to tetrahydrophenanthrene derivatives. For example 8-(1-naphthyl)-bicyclo[4.2.0]oct-2-en-7-ols give substituted chrysenes in methanesulphonic acid. In the case of the homologous 7-aryl or 7,7-diarylbicyclo[3.2.0]hept-2-en-6-ols a novel transformation to diarlymethanes is observed. A mechanism is proposed which accounts
8-芳基或8,8-二芳基双环[4.2.0] oct-2-en-7-ols 的酸催化反应生成四氢菲衍生物。例如,8-(1-萘基)-双环[4.2.0]oct-2-en-7-ols 在甲磺酸中产生取代的芘。在同源 7-芳基或 7,7-二芳基双环 [3.2.0]hept-2-en-6-ols 的情况下,观察到了向二芳基甲烷的新转化。提出了一种机制来解释在这些重排中观察到的产物分布。