An expedient [5 + 1] annulation method via Rh(III)-catalyzed C–H bond functionalization of enaminones to synthesize polyaromatic rings is described. The reaction tolerates a broad range of functional groups and offers a new entry to construct polycyclic aromatic compounds with amino and formyl substituents. A possible reaction mechanism was proposed based on the results obtained from isotope labeling
[EN] PIKFYVE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE KINASE PIKFYVE
申请人:ACURASTEM INCORPORATED
公开号:WO2021163727A1
公开(公告)日:2021-08-19
The present invention relates to compounds useful as inhibitors of phosphatidylinositol-3-phosphate 5-kinase (PIKfyve) as well as their use for treating diseases and disorders associated with PIKfyve.
Rh(III)-Catalyzed Enaminone-Directed C–H Coupling with α-Diazo-α-phosphonoacetate for Reactivity Discovery: Fluoride-Mediated Dephosphonation for C–C Coupling Reactions
Rh(III)-catalyzed enaminone-directed C–H coupling with α-diazo-α-phosphonoacetate has been used for the identification of fluoride-mediated dephosphonation C–C coupling reactivity for the synthesis of 4-hydroxy-1-naphthoates. Intermolecular C–C coupling of α-phosphonoacetate and benzaldehyde for (E)-selective α,β-unsaturated ester synthesis has also been achieved.
A straightforward strategy for synthesis of highly functionalized trifluoromethyl 2H-furans is described. The copper catalyzed method relies on a cascade cyclic reaction between enaminones and N-tosylhydrazones. This method allows the synthesis of 2-amino-3-trifluoromethyl-substituted 2H-furan derivatives carrying a quaternary stereogenic center as single diastereomers. The proposed reaction mechanism
Metal-free TBAI-catalyzed oxidative Csp3S bond formation through Csp2Csp2 bond and S N bond cleavage: A new route to β-keto-Sulfones
作者:Yucai Tang、Ying Chen、Hui Liu、Min Guo
DOI:10.1016/j.tetlet.2018.09.005
日期:2018.10
oxidative conditions and the corresponding β-keto-sulfone compounds were obtained in moderate to good yields. Importantly, this transformation offered the first protocol for Csp3S bondformation by oxidative Csp2Csp2 bond cleavage in one step.