Transition-metal-catalyzed radical cyclization: copper-catalyzed cyclization of allyl trichloroacetates to trichlorinated .gamma.-lactones

1990 ◽  
Vol 55 (3) ◽  
pp. 985-990 ◽  
Author(s):  
Hideo Nagashima ◽  
Koji Seki ◽  
Nobuyasu Ozaki ◽  
Hidetoshi Wakamatsu ◽  
Kenji Itoh ◽  
...  
Keyword(s):  
Transition Metal ◽  
Radical Cyclization ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Radical Strategy for the Transition-Metal-Catalyzed Synthesis of γ-Lactones: A Review

Synthesis ◽  
2020 ◽  
Vol 52 (24) ◽  
pp. 3855-3865
Author(s):  
Ren-Jie Song ◽  
Bin Wei ◽  
Ke-Wei Li ◽  
Yan-Chen Wu ◽  
Shi-Qi Tong
Keyword(s):  
Natural Products ◽  
Transition Metal ◽  
Recent Progress ◽  
Food Additives ◽  
Radical Cyclization ◽  
Biological Molecules ◽  
Cyclization Reactions ◽  
Unsaturated Carboxylic Acids ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

The γ-lactone skeleton is very important component of various natural products, biological molecules, food additives, and perfumes. As a result, much effort has been made towards such compounds. In this review, we summarize recent progress in transition-metal-catalyzed annulation reactions for the formation of γ-lactone derivatives through a radical pathway. Various reagents, such as anhydrides, Togni’s reagent, TMSN3, arenesulfonyl chlorides, arenediazonium salts, dibenzoyl peroxides, O-benzoylhydroxylamine, NFSI, and α-halocarboxylic compounds, used in radical cyclization reactions are described, and the mechanisms of these radical annulation reactions are also discussed.1 Introduction2 Annulations of Alkenes with Anhydrides3 Annulations of Unsaturated Carboxylic Acids with Nucleophiles4 Annulations of Alkenes with α-Halocarboxylic Compounds5 Conclusions and Outlook

A Novel Short Approach to (Z)-Pulchellalactam through Transition-Metal-Catalyzed Atom-Transfer Radical Cyclization of 1-Isopropylprop-2-enyl Dichloroacetate

Synthesis ◽  
2007 ◽  
Vol 2007 (12) ◽  
pp. 1882-1886 ◽  
Author(s):  
Franco Ghelfi ◽  
Fabrizio Roncaglia ◽  
Fulvia Felluga ◽  
Ugo Pagnoni ◽  
Andrew Parsons ◽  
...  
Keyword(s):  
Transition Metal ◽  
Radical Cyclization ◽  
Atom Transfer ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed ◽  
Atom Transfer Radical Cyclization

Chelation-assisted transition metal-catalysed C–H chalcogenylations

2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Advances ◽  
Site Selectivity ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

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