5336-41-4Relevant academic research and scientific papers
η6-Arene CH?O Interaction Directed Dynamic Kinetic Resolution – Asymmetric Transfer Hydrogenation (DKR-ATH) of α-Keto/enol-Lactams
Chen, Yong,Lin, Yicao,Luo, Zhonghua,Sun, Guodong,Wang, Zhongqing,Wu, Shuming,Zhang, Lei
supporting information, p. 3030 - 3034 (2021/06/01)
A dynamic kinetic resolution – asymmetric transfer hydrogenation (DKR-ATH) methodology of α-keto/enol-lactams was developed. We also propose a possible catalytic mechanism evolving a transition state stabilized by η6-arene CH?O interaction. The efficient approach can be applied to a wide range of substrates including non-aryl ones which would be difficult to prepare by other asymmetric reduction methods. (Figure presented.).
Synthesis of new pyrrolo[3,4-b]indol-3-ones as latent substrates for pyrrolo[3,4-b]indoles
Saulnier, Mark G.,Schreiber, Steven M.,Cavanaugh, Kerri L.,Perni, Robert B.,Joyner, H. Howard,Gribble, Gordon W.
, p. 15 - 23 (2020/11/19)
We report the synthesis of new examples of the 1,4-dihydropyrrolo[3,4-b]indol-3(2H)-one ring system via Fischer indolization between the appropriate phenylhydrazines and pyrrolidine-2,3-diones. Lithiation at the C-1 position with lithium diisopropylamide following by quenching with iodomethane affords 1-methyl-1,4-dihydropyrrolo[3,4-b]indol-3(2H)-ones in excellent yield.
