Recent Advances in Natural Products Synthesis Using Bifunctional Organocatalysts Bearing a Hydrogen‐Bonding Donor Moiety

2019 ◽  
Vol 8 (10) ◽  
pp. 1766-1774 ◽  
Author(s):  
Minami Odagi ◽  
Kazuo Nagasawa
Keyword(s):  
Natural Products ◽  
Hydrogen Bonding ◽  
Recent Advances ◽  
Donor Moiety ◽  
Natural Products Synthesis

Recent advances in Wacker oxidation: from conventional to modern variants and applications

2020 ◽  
Vol 10 (22) ◽  
pp. 7448-7470
Author(s):  
Rodney A. Fernandes ◽  
Amit K. Jha ◽  
Praveen Kumar
Keyword(s):  
Natural Products ◽  
Oxidation Process ◽  
Wacker Oxidation ◽  
Recent Advances ◽  
Recent Developments ◽  
Natural Products Synthesis

Recent developments in the well-known Wacker oxidation process from conventional to modern variants and applications to natural products' synthesis are compiled in this review.

Recent applications of asymmetric organocatalytic annulation reactions in natural product synthesis

2021 ◽  
Author(s):  
Nengzhong Wang ◽  
Zugen Wu ◽  
Junjie Wang ◽  
Nisar Ullah ◽  
Yixin Lu
Keyword(s):  
Natural Products ◽  
Natural Product ◽  
Natural Product Synthesis ◽  
Natural Products Synthesis

A comprehensive and updated summary of asymmetric organocatalytic annulation reactions is presented; in particular, the applications of these annulation strategies to natural products synthesis are highlighted.

scholarly journals NMR of Natural Products as Potential Drugs

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3763
Author(s):  
Poul Erik Hansen
Keyword(s):  
Natural Products ◽  
Hydrogen Bonding ◽  
Density Functional ◽  
Chemical Shifts ◽  
Isotope Effects ◽  
Density Functional Theory Calculations ◽  
Intramolecular Hydrogen Bonding ◽  
Chemical Equilibria ◽  
Nmr Techniques ◽  
Intramolecular Hydrogen

This review outlines methods to investigate the structure of natural products with emphasis on intramolecular hydrogen bonding, tautomerism and ionic structures using NMR techniques. The focus is on 1H chemical shifts, isotope effects on chemical shifts and diffusion ordered spectroscopy. In addition, density functional theory calculations are performed to support NMR results. The review demonstrates how hydrogen bonding may lead to specific structures and how chemical equilibria, as well as tautomeric equilibria and ionic structures, can be detected. All these features are important for biological activity and a prerequisite for correct docking experiments and future use as drugs.

Efficient Synthesis of Propargylic Ethers under the DBU Conditions and Its Application to Natural Products Synthesis.

ChemInform ◽  
2007 ◽  
Vol 38 (28) ◽  
Author(s):  
Tadashi Yokoyama ◽  
Noriki Kutsumura ◽  
Tadaaki Ohgiya ◽  
Shigeru Nishiyama
Keyword(s):  
Natural Products ◽  
Efficient Synthesis ◽  
Natural Products Synthesis
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