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Themed collection Synthetic Approaches to Natural Products via Catalytic Processes

23 items
Editorial

Themed collection: Synthetic approaches to natural products via catalytic processes

Guest editors Louis Fensterbank, Shuanhu Gao and Armen Zakarian introduce this Organic Chemistry Frontiers themed collection entitled “Synthetic approaches to natural products via catalytic processes”.

Graphical abstract: Themed collection: Synthetic approaches to natural products via catalytic processes
Highlight

Catalytic approaches to assemble cyclobutane motifs in natural product synthesis

New strategies based on transition-metal catalysis or organocatalysis have provided new perspectives into the total synthesis of cyclobutane-containing natural products.

Graphical abstract: Catalytic approaches to assemble cyclobutane motifs in natural product synthesis
Review Article

Formation of tetrasubstituted C–C double bonds via olefin metathesis: challenges, catalysts, and applications in natural product synthesis

Among the many types of transition-metal-catalysed C–C bond forming reactions, olefin metathesis is without a doubt one of the most thriving fields in modern organic synthetic chemistry.

Graphical abstract: Formation of tetrasubstituted C–C double bonds via olefin metathesis: challenges, catalysts, and applications in natural product synthesis
Open Access Review Article

Total syntheses of pyrroloazocine indole alkaloids: challenges and reaction discovery

Total syntheses of pyrroloazocine indole alkaloids (lapidilectines, grandilodines, lundurines and tenuisines) are discussed in terms of existing retrosynthetic solutions and novel reaction discoveries.

Graphical abstract: Total syntheses of pyrroloazocine indole alkaloids: challenges and reaction discovery
Review Article

Ir-Catalyzed reactions in natural product synthesis

This review highlights the recent applications of Ir-catalyzed reactions in the total synthesis of natural products.

Graphical abstract: Ir-Catalyzed reactions in natural product synthesis
Review Article

Total synthesis of natural products via iridium catalysis

An overview of the highlights in total synthesis of natural products using iridium as a catalyst is given.

Graphical abstract: Total synthesis of natural products via iridium catalysis
Review Article

Catalytic C–H amination at its limits: challenges and solutions

Pushing C–H amination to its limits fosters innovative synthetic solutions and offers a deeper understanding of the reaction mechanism and scope.

Graphical abstract: Catalytic C–H amination at its limits: challenges and solutions
Review Article

Metal-mediated C–O bond forming reactions in natural product synthesis

Metal catalyzed reactions for the formation of C(sp2)–O bonds have had a dramatic impact in natural product synthesis. They have enabled the emergence of new bond disconnections, which notably resulted in remarkably efficient and short synthetic pathways. The use of these reactions for the formation of C–O bonds in natural product synthesis is overviewed in this critical review.

Graphical abstract: Metal-mediated C–O bond forming reactions in natural product synthesis
Review Article

Metal-catalyzed enyne cycloisomerization in natural product total synthesis

Enyne cycloisomerization has become a powerful and attractive strategy for the construction of cyclic compounds, thus possessing great potential for applications in total synthesis of natural products and pharmaceuticals.

Graphical abstract: Metal-catalyzed enyne cycloisomerization in natural product total synthesis
Research Article

Application of a rhodium-catalyzed cyclization cycloaddition cascade strategy to the total synthesis of (−)-curcumol

The first de novo total synthesis of (−)-curcumol was accomplished using a rhodium-catalyzed cyclization–cycloaddition cascade reaction as the key step.

Graphical abstract: Application of a rhodium-catalyzed cyclization cycloaddition cascade strategy to the total synthesis of (−)-curcumol
Research Article

Approach to pactamycin analogues using rhodium(II)-catalyzed alkene aziridination and C(sp3)–H amination reactions

Application of dirhodium(II)-catalyzed nitrene transfers allows for the preparation of a platform bearing the triamino moiety present in pactamycin.

Graphical abstract: Approach to pactamycin analogues using rhodium(ii)-catalyzed alkene aziridination and C(sp3)–H amination reactions
Research Article

Stereospecific C–H activation as a key step for the asymmetric synthesis of various biologically active cyclopropanes

A rapid and efficient synthesis of hoshinolatame, an enantiopure cyclopropane containing natural product, is described.

Graphical abstract: Stereospecific C–H activation as a key step for the asymmetric synthesis of various biologically active cyclopropanes
Research Article

Evolution of two routes for asymmetric total synthesis of tetrahydroprotoberberine alkaloids

Two routes were developed for the catalytic asymmetric total synthesis of tetrahydroprotoberberine alkaloids.

Graphical abstract: Evolution of two routes for asymmetric total synthesis of tetrahydroprotoberberine alkaloids
Research Article

Enantioselective synthesis of (−)-phaseic acid

A short, enantioselective synthesis of a newly identified ABA receptor agonist (−)-phaseic acid is described.

Graphical abstract: Enantioselective synthesis of (−)-phaseic acid
Research Article

Gold-catalyzed diversified synthesis of 3-aminosugar analogues of digitoxin and digoxin

A small library containing 3-aminosugar analogues of digitoxin and digoxin with potent anticancer activities was constructed by gold-catalyzed glycosylation.

Graphical abstract: Gold-catalyzed diversified synthesis of 3-aminosugar analogues of digitoxin and digoxin
Research Article

Harnessing the potential diversity of resinic diterpenes through visible light-induced sensitized oxygenation coupled to Kornblum–DeLaMare and Hock reactions

A biomimetic procedure for the late functionalization of resinic acids is reported, implementing photooxygenation by singlet oxygen, using visible light and a photosensitized, combined to the Kornblum–DeLaMare reaction or the Hock rearrangement.

Graphical abstract: Harnessing the potential diversity of resinic diterpenes through visible light-induced sensitized oxygenation coupled to Kornblum–DeLaMare and Hock reactions
Research Article

Synthetic strategies towards mycolactone A/B, an exotoxin secreted by Mycobacterium ulcerans

Pitfalls and dead-ends pave the way to mycolactone A/B. This full account reports synthetic efforts towards this natural product that eventually culminated in a de novo total synthesis.

Graphical abstract: Synthetic strategies towards mycolactone A/B, an exotoxin secreted by Mycobacterium ulcerans
Research Article

Total synthesis of orientalol F via gold-catalyzed cycloisomerization of alkynediol

The total synthesis of orientalol F was accomplished in 13 steps using gold-catalyzed tandem cycloisomerization of alkynediol as a key step.

Graphical abstract: Total synthesis of orientalol F via gold-catalyzed cycloisomerization of alkynediol
Research Article

Rapid construction of the 6/6/5 tricyclic framework via a tandem radical cyclization reaction and its application to the synthesis of 5-epi-7-deoxy-isoabietenin A

A tandem radical cyclization towards the 6/6/5 tricyclic skeleton, which exists in numerous natural products, was developed in modest to good yields.

Graphical abstract: Rapid construction of the 6/6/5 tricyclic framework via a tandem radical cyclization reaction and its application to the synthesis of 5-epi-7-deoxy-isoabietenin A
Research Article

Photoredox meets gold Lewis acid catalysis in the alkylative semipinacol rearrangement: a photocatalyst with a dark side

The alkylative semipinacol rearrangement of a variety of TMS protected α-styrenyl substituted cyclic alcohols with unactivated bromoalkanes that merge photoredox and Au(I)/Au(III) catalysis has been achieved.

Graphical abstract: Photoredox meets gold Lewis acid catalysis in the alkylative semipinacol rearrangement: a photocatalyst with a dark side
Open Access Research Article

Concise asymmetric total synthesis of (−)-patchouli alcohol

An asymmetric total synthesis of (−)-patchouli alcohol was realized featuring an enantioselective organocatalytic [4 + 2] approach to the [2.2.2] bicyclic core.

Graphical abstract: Concise asymmetric total synthesis of (−)-patchouli alcohol
Research Article

Gold(I)-catalyzed access to neomerane skeletons

The gold(I) catalyzed cycloisomerization of an enynyl propargylic ester, featuring a 1,2-acyloxy migration/intramolecular cyclopropanation sequence, opens a straightforward access to the 5,7,3-tricyclic skeleton of neomerane sesquiterpenes. The first total synthesis of 5-epi-valeneomerin B in 12 steps with an overall yield of 5.3% is reported.

Graphical abstract: Gold(i)-catalyzed access to neomerane skeletons
Research Article

A concise synthetic approach to parvistemin A and (±)-diperezone

Concise syntheses of parvistemin A and diperezone are achieved using ring expansion of cyclobutenones and oxidative phenolic coupling under basic conditions.

Graphical abstract: A concise synthetic approach to parvistemin A and (±)-diperezone
23 items

About this collection

Welcome to Organic Chemistry Frontiers themed collection “Synthetic Approaches to Natural Products via Catalytic Processes”.

Catalysis serves as a powerful tool for chemical bonds transformation, asymmetric induction, and more importantly for achieving increased structural complexity in fewer synthetic steps. Over the past decade, stunning advances in catalytic methods like photoredox catalysis, organocatalysis and transition-metal mediated catalysis etc. have revolutionised the ways in preparing architecturally complex natural products and natural-product-like structures.

This web collection, guest edited by Louis Fensterbank (University Pierre et Marie Curie), Shuanhu Gao (East China Normal University) and Armen Zakarian (UC Santa Barbara), showcases the recent important development of catalytic methods and their successful utilization in natural products syntheses.

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