Selective methoxy ether cleavage of 2,6-dimethoxyphenol followed by a selective acylation
作者:Enoch A. Adogla、Romy F.J. Janser、Samuel S. Fairbanks、Caitlyn M. Vortolomei、Ranjith K. Meka、Ingo Janser
DOI:10.1016/j.tetlet.2011.10.140
日期:2012.1
group. Under the same reaction conditions 2-methoxyphenol does not get demethylated; a mechanism to account for these findings is proposed. This reaction gives access to a variety of ortho-acylated catechols. Substituted catechols are widely used in supramolecular chemistry and are precursors of pesticides, flavors, and fragrances. Additionally, catechol moieties are found in various natural products
在氯化铝和丙酰氯或丁酰氯的存在下,2,6-二甲氧基苯酚的弗里德尔-克来福特反应分别在升高的温度下导致甲氧基之一的选择性裂解,然后是间位的选择性酰化关于酚羟基。在相同的反应条件下,2-甲氧基苯酚不会脱甲基;提出了一种解释这些调查结果的机制。该反应可以获得多种邻位酰化儿茶酚。取代的儿茶酚广泛用于超分子化学,是杀虫剂、香精和香料的前体。此外,儿茶酚部分存在于各种天然产品中。