作者:Jeffrey M. Hammann、Teresa A. Unzner、Thomas Magauer
DOI:10.1002/chem.201402098
日期:2014.5.26
electrocyclization, followed by rearomatization. This concept enables the rapid conversion (three steps) of various commercially available 3‐(trifluoromethyl)phenols into novel fluorine‐containing naphthols, which are difficult to prepare by previous methods. The reported sequence was also extended to a one‐pot transformation of 3‐(trifluoromethyl)phenols into 5‐fluoronaphthalen‐1‐ols.
在此,我们描述了一种无过渡金属的方案,用于将简单的2-烯丙基3-(三氟甲基)苯酚转化为取代的5-氟萘-1-醇。该反应的关键事件包括的两个C选择性激活 F键和形成中的中间己三烯系统,其经历一个6πelectrocyclization,接着rearomatization。这一概念使各种市售的3-(三氟甲基)苯酚能够快速转化(三步)成新型的含氟萘酚,而这是以前的方法难以制备的。报告的序列还扩展为将3-(三氟甲基)苯酚一锅转化为5-氟萘-1-醇。