Catalytic Synthesis of Fluoroalkyl Ketones DOI

Shun‐Xi Li,

Hai‐Wu Du,

Yulong Li

et al.

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(23)

Published: Aug. 27, 2024

Abstract Fluoroalkyl ketones are a class of structural motifs which ubiquitous in bioactive molecules, and serve as synthons for diverse value‐added fluorine‐containing targets. The presence fluorine significantly alters the lipophilicity bioactivity alkyl well imposes additional challenges on synthesis fluoroalkyl ketones. Traditional methods heavily rely multiple‐step manipulations require stoichiometric reagents suffer from low efficiency. Thus, development synthesizing enabled by catalytic is highly valuable yet challenging. This Concept summarizes recent renaissance developing with substitution patterns different precursors. In addition, further efforts method also discussed.

Language: Английский

Applications of Transition Metal-Catalyzed ortho-Fluorine-Directed C–H Functionalization of (Poly)fluoroarenes in Organic Synthesis DOI Creative Commons
Yudha P. Budiman, Robin N. Perutz, Patrick G. Steel

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(8), P. 4822 - 4862

Published: April 2, 2024

The synthesis of organic compounds efficiently via fewer steps but in higher yields is desirable as this reduces energy and reagent use, waste production, thus environmental impact well cost. reactivity C–H bonds ortho to fluorine substituents (poly)fluoroarenes with metal centers enhanced relative meta para positions. Thus, direct functionalization without prefunctionalization becoming a significant area research chemistry. Novel selective methodologies functionalize (poly)fluorinated arenes by taking advantage the C–F are continuously being developed. This review summarizes reasons for consequent developments valuable (poly)fluoroarene-containing compounds.

Language: Английский

Citations

16

Radical reactions enabled by polyfluoroaryl fragments: photocatalysis and beyond DOI
Mikhail O. Zubkov, Alexander D. Dilman

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4741 - 4785

Published: Jan. 1, 2024

The review summarizes advances in the radical chemistry of polyfluorinated arenes under photocatalytic conditions. fluoroaryl fragment serves as enabling motif for reaction design and efficient generation reactive intermediates.

Language: Английский

Citations

9

Perfluoroalkyl Editing of Fluoroalkynes: Chemo-, Regio-, and Stereoselective Synthesis of (E)-(2-Amino-fluoroalkenyl)pyrimidines DOI
M Kellis,

Ming-Yao Tang,

Tong Qian

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

A chemo-, regio-, and stereoselective condensation reaction of perfluoroalkyl alkynes (PFAAs), (CH2O)n, (NH4)2CO3 through the cleavage five inert C(sp3)-F bonds at three distinct carbon sites, thereby establishing an unprecedented platform for synthesizing structurally unique (E)-(2-amino-fluoroalkenyl)pyrimidines, is first developed. Remarkably, this features mild conditions, good compatibility with various functional groups, excellent E-stereoselectivity, late-stage modification complex molecules, scalability, versatile synthetic transformations resulting heterocyclic compounds.

Language: Английский

Citations

1

Stereoselective hydrodefluorination of CF3-substituted alkenes and gem-difluoroalkenes by H DOI
Dachang Bai, Xin Li, Fen Wu

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(5), P. 1388 - 1394

Published: Jan. 1, 2024

Zn-catalyzed stereoselective hydrodefluorination of CF 3 -substituted alkenes, gem -difluoroalkenes and polyfluoroarenes by hydride ion addition has been realized through controlled C(sp )–F and/or 2 bonds cleavage.

Language: Английский

Citations

7

Diastereo- and Enantioselective Dearomative Reductive Aryl-Fluoroalkenylation of Indoles by Nickel Catalysis DOI

Xinmiao Huang,

Min Ou,

Lixin Hong

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(9), P. 6432 - 6439

Published: April 11, 2024

Herein, we disclose a nickel-catalyzed dearomative reductive aryl-fluoroalkenylation of indoles by defluorinative coupling with gem-difluoroalkenes. The catalytic protocol affords facile assembly various monofluoroalkene-containing polycyclic fused indolines bearing two contiguous carbon stereocenters in high diastereo- and enantioselectivities tolerance diverse functional groups.

Language: Английский

Citations

5

Methanolysis of Fluoropyridine Aminals DOI Open Access
Georgyi Koidan, Serhii Zahorulko,

Serhii Filimonchuk

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(6)

Published: Feb. 1, 2025

Abstract A series of fluoropyridines featuring a N,N,N’ ‐trimethyl, N’ ‐trimethylsilylaminal group were subjected to methanolysis. The methanolysis carried out at room temperature yielded mixture products. aminal was transformed into methylimine and ensuing dimethylamine substituted (or not) fluorine atom. relative content pyridine methylimines with dimethylamino without it determined for all fluoropyridines. Additionally, these compounds hydrolyzed aldehydes. This work presents novel efficient methodology synthesizing important scaffolds found in various drug candidates biologically relevant compounds.

Language: Английский

Citations

0

Controlled Defluorinative Carboxylation Cascade of Sterically Hindered CF3-Alkenes with Formate Salt via Photocatalysis DOI

Runze Zhai,

Haiping Yu, Jian‐Ping Ma

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: 27(10), P. 2492 - 2497

Published: March 5, 2025

A controlled cleavage of double C-F bonds in sterically hindered tetrasubstituted CF3-alkenes using formate salt has been achieved through a photoinduced electron transfer approach. Diverse γ-branched multifunctionalized gem-difluoroalkenes and α-fluoroacrylic acids are obtained sequentially via hydrodefluorination bond carboxylation with good-to-high yields. Precisely controlling the quantity reaction time is crucial for obtaining divergent defluorinative products. Formate serves as C1 source, hydrogen donor, reducing agent.

Language: Английский

Citations

0

Nickel‐Catalyzed LiCl‐Controlled Switchable Carboxylation of Aryl C—F Bonds with One or Two Molecules of CO2 DOI Open Access

Chunzhe Pei,

Shanglin Han,

Hanxuan Wu

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Comprehensive Summary The use of CO 2 as a renewable C1 source for the synthesis value‐added chemicals can contribute to more sustainable chemistry. In this work, nickel‐catalyzed amide‐directed carboxylation aryl C−F bonds with has been developed. reaction is switchable controlled by LiCl react one or two molecules afford valuable phthalimides α‐hydroxycarboxylic acid derivatives. Further study shows that step‐by‐step process. first step and tandem cyclization phthalimides. second C−N bond , intramolecular nucleophilic addition amide anion carbonyl. also developed based on reaction. work features inert functionalization, activation, multiple incorporation. Mechanistic studies indicate azanickelacycle intermediates play an important role, facilitates reduction Ni(II) Ni(I) promotes molecule . This protocol provides efficient route functionalization under mild conditions via chemical fixation

Language: Английский

Citations

0

Trifluoromethyl Group (CF3) Induced Regioselective Larock Indole Synthesis from Unsymmetric β-CF3-1,3-enynes DOI

Yan‐Hua Qiu,

Peng-Xiang Ma,

Wen‐Hao Shao

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

The indole skeleton exists widely in natural products, pharmaceuticals, and materials. We disclose here a trifluoromethyl group induced regioselective Larock synthetic method from unsymmetric 2-CF3-1,3-enynes. presence of is determinable for the regioselectivity. Once CF3 was replaced with methyl or phenyl group, ratio 1:1 to 1:1.4 isomers were obtained. This strategy features good regioselectivity, broad substrate scope, high functional tolerance. protocol reported offers an alternative solution rare 3,4-functionalization products further transformed show distinctive reactivity hydroboration–oxidation hydro-bromination.

Language: Английский

Citations

0

Heterolytic Bond Dissociation Energy Related to C−F Activation in Nickel-Catalyzed Cross-Coupling of Phenylmagnesium Chloride with Fluoroarenes DOI
Hongli Wu,

Junjie Tai,

Jialun Xu

et al.

Journal of Organometallic Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 123674 - 123674

Published: April 1, 2025

Language: Английский

Citations

0