Recent Advances in the Direct Functionalization of Isoindolinones for Synthesis of 3,3‐Disubstituted Isoindolinones

2021 ◽  
Author(s):  
Long Chen ◽  
Yun-Xiang Zou
Keyword(s):  
Recent Advances ◽  
Direct Functionalization

Recent Advances in Direct Functionalization of Quinones

2019 ◽  
Vol 2019 (12) ◽  
pp. 2179-2201 ◽  
Author(s):  
Yijun Wang ◽  
Shuai Zhu ◽  
Liang-Hua Zou
Keyword(s):  
Recent Advances ◽  
Direct Functionalization

Transition-metal-catalyzed direct β-functionalization of simple carbonyl compounds

2014 ◽  
Vol 1 (7) ◽  
pp. 838-842 ◽  
Author(s):  
Guobing Yan ◽  
Arun Jyoti Borah
Keyword(s):  
Transition Metal ◽  
Carbonyl Compounds ◽  
Bond Activation ◽  
Active Area ◽  
Synthetic Chemistry ◽  
Chemical Transformations ◽  
Recent Advances ◽  
Direct Functionalization ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Chemical transformations via catalytic C–H bond activation have been established as one of the most powerful tools in organic synthetic chemistry. Transition-metal-catalyzed direct functionalization of β-C(sp3)–H bonds of carbonyl compounds has been developed in recent years. This highlight will focus on recent advances in this active area and their mechanisms are also discussed.

Recent advances in the direct functionalization of quinoxalin-2(1H)-ones

2019 ◽  
Vol 17 (24) ◽  
pp. 5863-5881 ◽  
Author(s):  
Qiumin Ke ◽  
Guobing Yan ◽  
Jian Yu ◽  
Xiangmei Wu
Keyword(s):  
Bond Activation ◽  
Biological Activities ◽  
Chemical Properties ◽  
Recent Advances ◽  
Direct Functionalization ◽  
And Chemical Properties

The direct C3-functionalization of quinoxalin-2(1H)-ones via C–H bond activation has recently attracted considerable attention, due to their diverse biological activities and chemical properties.

scholarly journals Recent Advances in the Addition of Amide/Sulfonamide Bonds to Alkynes

Molecules ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 164 ◽  
Author(s):  
Fei Zhao ◽  
Pinyi Li ◽  
Xiaoyan Liu ◽  
Xiuwen Jia ◽  
Jiang Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Present Review ◽  
Reaction Conditions ◽  
Metal Free ◽  
Triple Bonds ◽  
Recent Advances ◽  
Direct Functionalization ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

The addition of amide/sulfonamide bonds to alkynes is not only one of the most important strategies for the direct functionalization of carbon–carbon triple bonds, but also a powerful tool for the downstream transformations of amides/sulfonamides. The present review provides a comprehensive summary of amide/sulfonamide bond addition to alkynes, including direct and metal-free aminoacylation, based-promoted aminoacylation, transition-metal-catalyzed aminoacylation, organocatalytic aminoacylation and transition-metal-catalyzed aminosulfonylation of alkynes up to December 2018. The reaction conditions, regio- and stereoselectivities, and mechanisms are discussed and summarized in detail.

Recent Advances in High Dispersion Spectroscopy of Globular Cluster Stars

1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
High Dispersion ◽  
Photographic Material ◽  
Recent Advances ◽  
Metal Abundances ◽  
Ccd Detectors ◽  
Major Progress

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.

Chelation-assisted transition metal-catalysed C–H chalcogenylations

2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Advances ◽  
Site Selectivity ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

Nucleosome dynamics

2006 ◽  
Vol 73 ◽  
pp. 109-119 ◽  
Author(s):  
Chris Stockdale ◽  
Michael Bruno ◽  
Helder Ferreira ◽  
Elisa Garcia-Wilson ◽  
Nicola Wiechens ◽  
...  
Keyword(s):  
High Resolution ◽  
Chromatin Structure ◽  
Current Knowledge ◽  
Dynamic Properties ◽  
Structure And Dynamics ◽  
Nucleosome Dynamics ◽  
Sharp Focus ◽  
Recent Advances ◽  
Insight Into ◽  
Chromatin Structure And Dynamics

In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent advances in the understanding of chromatin structure and dynamics are highlighted. The ways in which different modes of nucleosome reconfiguration are likely to influence each other are discussed, and some of the factors likely to regulate the dynamic properties of nucleosomes are considered.

Recent Advances in the Treatment of Pulmonary Tuberculosis

1950 ◽  
Vol 34 (5) ◽  
pp. 1363-1380
Author(s):  
Theodore L. Badger ◽  
William E. Patton
Keyword(s):  
Pulmonary Tuberculosis ◽  
Recent Advances
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