A Direct CH/ArH Coupling Approach to Oxindoles, Thio‐oxindoles, 3,4‐Dihydro‐1
<i>H</i>
‐quinolin‐2‐ones, and 1,2,3,4‐Tetrahydroquinolines
作者:Timothy E. Hurst、Ryan M. Gorman、Pauline Drouhin、Alexis Perry、Richard J. K. Taylor
DOI:10.1002/chem.201403917
日期:2014.10.20
A copper(II)‐catalysed approach to oxindoles, thio‐oxindoles, 3,4‐dihydro‐1H‐quinolin‐2‐ones, and 1,2,3,4‐tetrahydroquinolines via formal CH, ArH coupling is described. In a new variant, copper(II) 2‐ethylhexanoate has been identified as an inexpensive and efficient catalyst for this transformation, which utilises atmospheric oxygen as the re‐oxidant.
的铜(II) -催化的方法来羟吲哚,硫代羟吲哚,3,4-二氢-1- ħ -喹啉-2-酮,和通过正式Ç1,2,3,4-四氢喹啉 H,氩 ħ耦合描述。在一个新的变体中,2-乙基己酸铜(II)被确定为这种转化的廉价且有效的催化剂,该催化剂利用大气中的氧气作为再氧化剂。