ChemInform Abstract: Recent Advances in Direct Catalytic Asymmetric Transformations under Proton-Transfer Conditions

ChemInform ◽  
2011 ◽  
Vol 42 (38) ◽  
pp. no-no
Author(s):  
Naoya Kumagai ◽  
Masakatsu Shibasaki
Keyword(s):  
Proton Transfer ◽  
Asymmetric Transformations ◽  
Recent Advances ◽  
Catalytic Asymmetric

scholarly journals Recent Advances in the Catalytic Asymmetric Reactions of Oxaziridines

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2656 ◽  
Author(s):  
Qiao Ren ◽  
Wen Yang ◽  
Yunfei Lan ◽  
Xurong Qin ◽  
Youzhou He ◽  
...  
Keyword(s):  
Asymmetric Catalysis ◽  
Asymmetric Reactions ◽  
Nitrogen Transfer ◽  
Asymmetric Transformations ◽  
Recent Advances ◽  
Broad Array ◽  
Catalytic Asymmetric ◽  
Transfer Agents ◽  
Catalytic Asymmetric Reactions

Oxaziridines have emerged as powerful and elegant oxygen- and nitrogen-transfer agents for a broad array of nucleophiles, due to the remarkably high and tunable reactivities. However, the asymmetric catalysis involving oxaziridines is still in its infancy. Herein, this review aims to examine recent advances in the catalytic asymmetric transformations of oxaziridines, including oxidation, amination, cycloaddition and deracemization.

scholarly journals Pyrazoleamides in Catalytic Asymmetric Reactions: Recent Advances

2021 ◽  
Author(s):  
Sara Meninno ◽  
Francesca Franco ◽  
Maurizio Benaglia ◽  
Alessandra Lattanzi
Keyword(s):  
Asymmetric Reactions ◽  
Recent Advances ◽  
Catalytic Asymmetric ◽  
Catalytic Asymmetric Reactions

Recent Advances in C–Br Bond Formation

Synlett ◽  
2021 ◽  
Author(s):  
Ying-Yeung Yeung ◽  
Jonathan Wong
Keyword(s):  
Organic Synthesis ◽  
Aromatic Compounds ◽  
Bond Formation ◽  
Cross Coupling ◽  
Catalytic Site ◽  
Atom Transfer ◽  
Bond Forming ◽  
Recent Advances ◽  
Catalytic Asymmetric ◽  
Site Selective

AbstractOrganobromine compounds are extremely useful in organic synthesis. In this perspective, a focused discussion on some recent advancements in C–Br bond-forming reactions is presented.1 Introduction2 Selected Recent Advances2.1 Catalytic Asymmetric Bromopolycyclization of Olefinic Substrates2.2 Catalytic Asymmetric Intermolecular Bromination2.3 Some New Catalysts and Reagents for Bromination2.4 Catalytic Site-Selective Bromination of Aromatic Compounds2.5 sp3 C–H Bromination via Atom Transfer/Cross-Coupling3 Outlook

Catalytic asymmetric enamine protonation reaction

2018 ◽  
Vol 16 (4) ◽  
pp. 510-520 ◽  
Author(s):  
Niankai Fu ◽  
Long Zhang ◽  
Sanzhong Luo
Keyword(s):  
Carbonyl Compounds ◽  
Optically Active ◽  
Protonation Reaction ◽  
Recent Advances ◽  
Catalytic Asymmetric

Recent advances in catalytic enantioselective enamine protonation for the synthesis of optically active carbonyl compounds are summarized in this review.

scholarly journals Catalytic asymmetric cycloaddition reactions of enoldiazo compounds

2019 ◽  
Vol 17 (17) ◽  
pp. 4183-4195 ◽  
Author(s):  
Kostiantyn O. Marichev ◽  
Michael P. Doyle
Keyword(s):  
Cycloaddition Reactions ◽  
Asymmetric Catalytic ◽  
Recent Advances ◽  
Catalytic Asymmetric

Review of recent advances in asymmetric catalytic cycloaddition reactions of silyl-protected enoldiazo compounds.

scholarly journals Excited-state intramolecular proton-transfer (ESIPT) based fluorescence sensors and imaging agents

2018 ◽  
Vol 47 (23) ◽  
pp. 8842-8880 ◽  
Author(s):  
Adam C. Sedgwick ◽  
Luling Wu ◽  
Hai-Hao Han ◽  
Steven D. Bull ◽  
Xiao-Peng He ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Fluorescent Probes ◽  
Environmental Science ◽  
Intramolecular Proton Transfer ◽  
Imaging Agents ◽  
Fluorescence Sensors ◽  
Recent Advances ◽  
Design And Application

We review recent advances in the design and application of excited-state intramolecular proton-transfer (ESIPT) based fluorescent probes. These sensors and imaging agents (probes) are important in biology, physiology, pharmacology, and environmental science.

Catalytic Asymmetric Transformations of Racemic Aziridines

Synthesis ◽  
2020 ◽  
Vol 52 (12) ◽  
pp. 1738-1750 ◽  
Author(s):  
Zhuo Chai
Keyword(s):  
Ring Opening ◽  
Kinetic Resolution ◽  
Short Review ◽  
Asymmetric Transformations ◽  
Parallel Kinetic Resolution ◽  
Donor Acceptor ◽  
Molecular Architectures ◽  
Catalytic Asymmetric ◽  
Asymmetric Transformation ◽  
Asymmetric Ring Opening

The catalytic asymmetric ring-opening transformations of aziridines represent an important strategy for the construction of various chiral nitrogen-containing molecular architectures. This short review covers the progress achieved in the catalytic asymmetric transformation of racemic aziridines, focusing on the catalytic strategies employed for each different type of such aziridines.1 Introduction2 Reaction of Racemic 2-Vinylaziridines3 Reaction of Racemic 2-Alkylaziridines3.1 Regiodivergent Parallel Kinetic Resolution3.2 Kinetic Resolution4 Reaction of Racemic 2-(Hetero)arylaziridines4.1 Kinetic Resolution4.2 Enantioconvergent Transformation5 Reaction of Racemic Donor–Acceptor-Type Aziridines6 Conclusion and Outlook

scholarly journals Asymmetric catalytic construction of fully substituted carbon stereocenters using acyclic α-branched β-ketocarbonyls: the “Methyl Rule” widely exists

2020 ◽  
Vol 7 (21) ◽  
pp. 3557-3577
Author(s):  
Deqian Sun ◽  
Shuang Yang ◽  
Xinqiang Fang
Keyword(s):  
General Principle ◽  
Asymmetric Catalytic ◽  
Recent Advances ◽  
Catalytic Asymmetric

This review illustrates the recent advances in catalytic asymmetric α-functionalization of acyclic β-ketocarbonyls. A thorough survey of all these reactions indicates the existance of a general principle which is called the “Methyl Rule”.

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