Department of Pharmacology and Pharmaceutical Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China.
Org Lett. 2012 Jun 1;14(11):2874-7. doi: 10.1021/ol301104n. Epub 2012 May 14.
An unprecedented Ru(II) catalyzed ortho-hydroxylation has been developed for the facile synthesis of a variety of multifunctionalized arenes from easily accessible ethyl benzoates with ester as an efficient directing group. Both the TFA/TFAA cosolvent system and oxidants serve as the critical success factors in this transformation. The reaction demonstrates excellent reactivity, good functional group tolerance, and high yields.
发展了一种前所未有的 Ru(II) 催化的邻位羟化反应,可从易得的苯甲酸乙酯出发,通过酯基作为有效的导向基团,简便地合成各种多功能芳基化合物。TFA/TFAA 共溶剂体系和氧化剂都是该转化的关键成功因素。该反应具有极好的反应活性、良好的官能团耐受性和高收率。