Single-Operation Deracemization of 3H-Indolines and Tetrahydroquinolines Enabled by Phase Separation
摘要:
The single-operation deracemization of 3H indolines and tetrahydroquinolines is described. An asymmetric redox approach was employed, in which a phosphoric acid catalyst, oxidant, and reductant are present in the reaction mixture. The simultaneous presence of both oxidant and reductant was enabled by phase separation and resulted in the isolation of highly enantioenriched starting materials in high yields.
Decarboxylative acylation of indolines with α-keto acids under palladium catalysis: a facile strategy for the synthesis of 7-substituted indoles
作者:Minyoung Kim、Neeraj Kumar Mishra、Jihye Park、Sangil Han、Youngmi Shin、Satyasheel Sharma、Youngil Lee、Eui-Kyung Lee、Jong Hwan Kwak、In Su Kim
DOI:10.1039/c4cc06929c
日期:——
Palladium-catalyzed decarboxylative acylation of highly substituted indolines with alpha-keto acids via C-H bond activation is described. This protocol provides efficient access to C7-carbonylated indoles known to have diverse biological profiles.
[EN] NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME<br/>[FR] NOUVEAUX COMPOSÉS ÉLECTROLUMINESCENTS ORGANIQUES ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LES COMPRENANT
申请人:ROHM & HAAS ELECT MAT
公开号:WO2013180456A1
公开(公告)日:2013-12-05
The present invention relates to novel organic electroluminescent compounds and an organic electroluminescent device containing the same. The organic electroluminescent compounds according to the present invention have high luminescent efficiency and a long lifespan, and show blue light-emission having high color purity, and thus an organic electroluminescent device having high efficiency, a long operating lifespan, and enhanced power consumption efficiency can be prepared by using the organic electroluminescent compounds according to the present invention.
Et<sub>3</sub>SiH + KO<sup>t</sup>Bu provide multiple reactive intermediates that compete in the reactions and rearrangements of benzylnitriles and indolenines
作者:Andrew J. Smith、Daniela Dimitrova、Jude N. Arokianathar、Kenneth F. Clark、Darren L. Poole、Stuart G. Leach、John A. Murphy
DOI:10.1039/d0sc04244g
日期:——
unusual because it generates multiple different types of reactive intermediates simultaneously that provide access to (i) silyl radical reactions, (ii) hydrogen atom transferreactions to closed shell molecules and to radicals, (iii) electron transfer reductions and (iv) hydride ion chemistry, giving scope for unprecedented outcomes. Until now, reactions with this reagent pair have generally been explained
Palladium-Catalyzed C-7 Selective CH Carbonylation of Indolines for Expedient Synthesis of Pyrroloquinazolinediones
作者:Pei-Long Wang、Yan Li、Lan Ma、Chen-Guang Luo、Zhen-Yu Wang、Quan Lan、Xi-Sheng Wang
DOI:10.1002/adsc.201501070
日期:2016.3.31
A novel palladium‐catalyzedC‐7 selectiveCH carbonylation of indolines with carbon monoxide for an expedient synthesis of pyrroloquinazolinediones, a structural motif with great potential in biologically active compounds, has been developed. Oxidation of the pyrroloquinazolinedione with 2,3‐dichloro‐5,6‐dicyano‐p‐benzoquinone (DDQ) could easily afford the corresponding indole‐based derivative in
Mild Rh(III)-Catalyzed C7-Allylation of Indolines with Allylic Carbonates
作者:Jihye Park、Neeraj Kumar Mishra、Satyasheel Sharma、Sangil Han、Youngmi Shin、Taejoo Jeong、Joa Sub Oh、Jong Hwan Kwak、Young Hoon Jung、In Su Kim
DOI:10.1021/jo502733q
日期:2015.2.6
The rhodium(III)-catalyzeddirectallylation of indolines with allylic carbonates at room temperature is described. These transformations provide the facile and efficient construction of C7-allylated indolic scaffold.