Iron-Catalyzed ortho-Selective Functionalization of Phenols: A Straightforward Strategy towards the 2′-Hydroxyphenyl-1,2-dione Skeleton
作者:Xingwei Guo、Wenjuan Li、Zhiping Li
DOI:10.1002/ejoc.201001180
日期:2010.10
An iron-catalyzed ortho-functionalization of phenols was developed. The reactions of simple phenols with alpha-hydroxy ketones provide a novel and efficient. method to construct 2';-hydroxyphenyl-1,2-dione derivatives.
The catalytic asymmetriccyclopropanation reaction of alkenes with diazo compounds is a direct and powerful method to construct chiral cyclopropanes that are essential to drug discovery. However, diazo compounds are potentially explosive and often require hazardous reagents for their preparation. Here, we report on the use of 1,2-dicarbonyl compounds as safe and readily available surrogates for diazo