Copper-mediated rapid and facile oxidative dehydrogenation of dihydrobenzocarbazoles
摘要:
Rapid method for the oxidative dehydrogenation of dihydrobenzocarbazoles has been introduced by using bench scale and commercially available reagent; copper chloride, in excellent yield with easy workup. The scope of the reaction has been studied with broad range of substitutes
作者:Stuart R. Flanagan、David C. Harrowven、Mark Bradley
DOI:10.1016/s0040-4039(03)00094-7
日期:2003.2
Several radicalcyclisation reactions involving indoles are described. Most notably, we have shown that radical additions to C3 of an indole are frequently facile. A dichotomy in the course of radicalcyclisation reactions to C2 of the indole has also been exposed wherein 6-endo-trig cyclisations are propagated by the loss of a hydrogen atom from C2 while 5-exo-trig cyclisations are propagated by hydrogen
作者:Rongguo Ren、Xiaofang Wang、Derek A. Leas、Christian Scheurer、Sarah Hoevel、Monica Cal、Gong Chen、Longjin Zhong、Kasiram Katneni、Thao Pham、Rahul Patil、Diptesh Sil、Matthias J. Walters、Thomas T. Schulze、Andrew J. Neville、Yuxiang Dong、Sergio Wittlin、Marcel Kaiser、Paul H. Davis、Susan A. Charman、Jonathan L. Vennerstrom
DOI:10.1021/acsinfecdis.3c00245
日期:2023.10.13
with IC50 values ranging from 80 to 200 nM. These keto lactams are converted into their poorly soluble 4(1H)-quinolone transannular condensation products in vitro in culture medium and in vivo in mouse blood. The similar antiplasmodial potencies of three keto lactam–quinolone pairs suggest that the quinolones likely contribute to the antimalarial activity of the lactams.
A visiblelight-induced transition metal-free benzylic C(sp3)−C(sp2) defluorinative coupling between indole derivatives and polyfluoroarenes via the sequential electron transfer-proton transfer (ET/PT) process has been developed, affording various polyfluorinated diarylmethanes. This protocol features mild conditions and good functional group tolerance.