Metal-free TEMPO-promoted C(sp3)-H amination to afford multisubstituted benzimidazoles
An efficient TEMPO-air/cat. TEMPO-O2 oxidative protocol was developed to synthesize multisubstituted or fused tetracyclic benzimidazoles via a metal-free oxidative C-N coupling between the sp3 C-H and free N-H of readily available N1-benzyl/alkyl-1,2-phenylenediamines.
Xue, Ding,Long, Ya-Qiu
p. 4727 - 4734
(2014/06/09)
COMPOUND HAVING VESSEL SMOOTH MUSCLE RELAXATION ACTIVITY
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(2008/06/13)
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