Ruthenium catalyzed desymmetrization of diazabicyclic olefins to access heteroaryl substituted cyclopentenes through C–H activation of phenylazoles
作者:P.S. Aparna、B. Prabha、Praveen Prakash、E. Jijy、R. Luxmi Varma、K.V. Radhakrishnan
DOI:10.1016/j.tetlet.2013.12.029
日期:2014.1
The first ruthenium catalyzed redox-neutral C-H activation strategy for the ring-opening of diazabicyclic olefins via C-H bond cleavage of phenyl azoles is reported. The developed method offers a novel route to functionalized cyclopentenes by employing less-expensive ruthenium catalyst and readily accessible biologically significant heteroarenes. The present protocol is a merger of the C-H activation of phenyl substituted heteroaromatics and subsequent beta-nitrogen elimination of diazabicyclic olefins. (C) 2013 Elsevier Ltd. All rights reserved.