Recent Advances in Photoacid Catalysis for Organic Synthesis

Synthesis ◽  
2020 ◽  
Author(s):  
Joseph J. Badillo ◽  
Jason Saway ◽  
Zena M. Salem
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Organic Synthesis ◽  
Short Review ◽  
Bond Forming ◽  
Recent Advances ◽  
Absorption Of Light ◽  
Excited State Proton Transfer ◽  
Bond Forming Reactions

AbstractPhotoacids are molecules that become more acidic upon the absorption of light. This short review highlights recent advances in the use of photoacids as catalysts for organic synthesis. Photoacid-catalyzed­ transformations discussed herein include: Protonation, glycosylation, acetalization, and arylation reactions.1 Introduction2 Protonation: Excited-State Proton Transfer (ESPT)3 Glycosylation4 Acetalization5 Friedel–Crafts Arylation6 Additional C–C and C–S Bond-Forming Reactions7 Conclusion

scholarly journals Acid Catalyzed Formation of C-C and C-S Bonds via Excited State Proton Transfer

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1318 ◽  
Author(s):  
Alessandro Strada ◽  
Mattia Fredditori ◽  
Giuseppe Zanoni ◽  
Stefano Protti
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Organic Synthesis ◽  
Excited State Proton Transfer ◽  
Acid Catalyzed

The behavior of 2-naphthol and 7-bromo-2-naphthol as organic photoacids are exploited in organic synthesis for the preparation of benzyl sulfides (using a trichloroacetimidate derivative as the starting substrate) and polycyclic amines via acid catalyzed condensation of 1,2,3,4-tetrahydroisoquinoline with aldehydes.

Recent Advances in Enantioselective C–C Bond Formation via Organocobalt Species

Synthesis ◽  
2018 ◽  
Vol 51 (01) ◽  
pp. 135-145 ◽  
Author(s):  
Naohiko Yoshikai
Keyword(s):  
Bond Formation ◽  
Cross Coupling ◽  
Short Review ◽  
Bond Forming ◽  
Carbon Nucleophiles ◽  
Recent Advances ◽  
Catalytic Intermediates ◽  
Bond Forming Reactions ◽  
Recent Developments

This Short Review describes recent developments in cobalt-catalyzed enantioselective C–C bond-forming reactions. The article focuses on reactions that most likely involve chiral organocobalt species as crucial catalytic intermediates and their mechanistic aspects.1 Introduction2 Hydrovinylation3 C–H Functionalization4 Cycloaddition and Cyclization5 Addition of Carbon Nucleophiles6 Cross-Coupling7 Conclusion

Recent Advances on C-Se Bond-forming Reactions at Low and Room Temperature

2020 ◽  
Vol 23 (28) ◽  
pp. 3206-3225 ◽  
Author(s):  
Amol D. Sonawane ◽  
Mamoru Koketsu
Keyword(s):  
Room Temperature ◽  
Bond Formation ◽  
Bond Forming ◽  
Material Chemistry ◽  
Recent Advances ◽  
Bond Forming Reactions ◽  
Bond Formation Reactions

: Over the last decades, many methods have been reported for the synthesis of selenium- heterocyclic scaffolds because of their interesting reactivities and applications in the medicinal as well as in the material chemistry. This review describes the recent numerous useful methodologies on C-Se bond formation reactions which were basically carried out at low and room temperature.

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

scholarly journals Revealing the role of excited state proton transfer (ESPT) in excited state hydrogen transfer (ESHT): systematic study in phenol–(NH3)n clusters

2021 ◽  
Author(s):  
Christophe Jouvet ◽  
Mitsuhiko Miyazaki ◽  
Masaaki Fujii
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Systematic Study ◽  
General Model ◽  
Hydrogen Transfer ◽  
Excited State Proton Transfer

A general model of excited state hydrogen transfer (ESHT) which unifies ESHT and the excited state proton transfer (ESPT) is presented from experimental and theoretical works on phenol–(NH3)n. The hidden role of ESPT is revealed.

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