ChemInform Abstract: A New Method for Establishment of Absolute Configurations of Organic Compounds by Use of Axially Chiral Reagents - Axial Chirality Method

ChemInform ◽  
2010 ◽  
Vol 29 (30) ◽  
pp. no-no
Author(s):  
Y. FUKUSHI
Keyword(s):  
Organic Compounds ◽  
New Method ◽  
Axial Chirality ◽  
Axially Chiral

scholarly journals A New Method to Find the Wiener Index of Hypergraphs

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Yalan Li ◽  
Bo Deng
Keyword(s):  
Organic Compounds ◽  
Chemical Properties ◽  
Wiener Index ◽  
New Method ◽  
Physical And Chemical Properties ◽  
Mathematical Chemistry ◽  
Physical And Chemical ◽  
And Chemical Properties

The Wiener index is defined as the summation of distances between all pairs of vertices in a graph or in a hypergraph. Both models—graph-theoretical and hypergraph-theoretical—are used in mathematical chemistry for quantitatively studying physical and chemical properties of classical and nonclassical organic compounds. In this paper, we consider relationships between hypertrees and trees and hypercycles and cycles with respect to their Wiener indices.

Organocatalytic Asymmetric Methodologies towards the Synthesis of Atropisomeric N-Heterocycles

Synthesis ◽  
2020 ◽  
Vol 52 (17) ◽  
pp. 2450-2468
Author(s):  
Vasco Corti ◽  
Giulio Bertuzzi
Keyword(s):  
Kinetic Resolution ◽  
Dynamic Kinetic Resolution ◽  
Chirality Transfer ◽  
Axial Chirality ◽  
Axially Chiral ◽  
Molecular Architectures

A perspective on the literature dealing with the organocatalytic asymmetric preparation of axially chiral N-heterocycles is provided. A particular focus is devoted to rationalize the synthetic strategies employed in each case. Moreover, specific classes of organocatalysts are shown to stand out as privileged motives for the stereoselective preparation of such synthetically challenging molecular architectures. Finally, an overview of the main trends in the field is given.1 Introduction2 Five-Membered Rings2.1 Arylation2.2 Dynamic Kinetic Resolution2.3 Ring Construction2.4 Central-to-Axial Chirality Conversion and Chirality Transfer2.5 Desymmetrization3 Six-Membered Rings3.1 Desymmetrization3.2 (Dynamic) Kinetic Resolution3.3 Ring Construction3.4 Central-to-Axial Chirality Conversion4 Conclusion

scholarly journals Conversion of two stereocenters to one or two chiral axes: atroposelective synthesis of 2,3-diarylbenzoindoles

2019 ◽  
Vol 10 (28) ◽  
pp. 6777-6784 ◽  
Author(s):  
Yu-Long Hu ◽  
Zhe Wang ◽  
Hui Yang ◽  
Jie Chen ◽  
Zi-Bo Wu ◽  
...  
Keyword(s):  
Axial Chirality ◽  
Chiral Compounds ◽  
Efficient Access ◽  
Axially Chiral

Central-to-axial chirality conversion provides efficient access to axially chiral compounds, and several examples regarding the conversion of one, two or four stereocenters to one axis have been reported.

A New Method of Separation of Organic Compounds

Nature ◽  
1953 ◽  
Vol 172 (4384) ◽  
pp. 862-863
Author(s):  
R. C. VASISTH ◽  
M. S. MUTHANA
Keyword(s):  
Organic Compounds ◽  
New Method
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