Progresses in the Preparation of Chromone Compounds and Their Applications in Organic Synthesis DOI
Zhonghao Li,

Yu Zeng,

Yong Zeng

et al.

Chinese Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 44(11), P. 3345 - 3345

Published: Jan. 1, 2024

Language: Английский

TEMPO/O2 Synergistically Mediated BiBrO‐Photocatalyzed Decarboxylative Phosphorylation of N‐Arylglycines DOI
Wen‐Tao Ouyang,

Hong‐Tao Ji,

Yuanyuan Liu

et al.

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(41)

Published: April 22, 2024

With both TEMPO and O

Language: Английский

Citations

5
Access to Chromenopyrrole via Tandem [3 + 2] Cycloaddition and Intramolecular C–O Coupling DOI
Bubul Das, Nikita Chakraborty, Hirendra Nath Dhara

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(2), P. 1331 - 1335

Published: Jan. 3, 2024

A mild and concise method for the synthesis of chromenopyrrole from 2′-hydroxychalcone is devised. The reaction proceeds via an initial [3 + 2] cycloaddition on C═C bond 1,3-dipolarophile, generated in situ by ethyl isocyanoacetate AgOAc. This then followed intramolecular C–O formation with −OH group C5–H pyrrole, leading to chromenopyrroles.

Language: Английский

Citations

2
HFIP-driven Schmidt-type reaction enables chromone-3-carbonitriles and its applications DOI
Jia Xu, Jie Lei, Lixin Zhang

et al.

Molecular Diversity, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 23, 2024

Language: Английский

Citations

1
Tandem Ring‐Opening/Double Ring‐Closing Synthesis of 1,2,4‐Triazolo[1,5‐a]pyridines from Chromone‐Containing Acrylonitriles DOI
N. M. Chernov, Roman P. Kustin,

Yulia V. Pypa

et al.

Advanced Synthesis & Catalysis, Journal Year: 2023, Volume and Issue: 366(2), P. 277 - 284

Published: Dec. 1, 2023

Abstract We studied a reaction of chromone‐containing acrylonitriles and cyanoacrylates with acid hydrazides. This turned out to be method for the synthesis salicyloyl‐substituted 1,2,4‐triazolo[1,5‐ ]pyridines. The developed is tandem ring‐opening/double ring‐closing process. synthetic approach characterized by low toxic solvents (ethanol, butanol) mediator (Et 3 N), 37–84% yields, non‐chromatographic isolation products, substrate tolerance (59 examples).

Language: Английский

Citations

2
Visible-light-catalyzed Synthesis of Amino Alcohols from N,N-dimethylaniline and Aryl Aldehyde DOI
Jiahui Jin, Yi-Jian Ma,

Yu-Yun Yin

et al.

Chemistry Letters, Journal Year: 2024, Volume and Issue: 53(6)

Published: June 1, 2024

Abstract Herein, we describe a direct radical addition reaction of aryl aldehyde and N, N-dimethylaniline using iridium complex as photocatalyst to form amino alcohols under mild conditions, offering convenient sustainable methodology. The could be easily scaled up through continuous flow with high yield. A series alcohol compounds were synthesized photocatalyst. reaction. mechanism has been investigated the aid density functional theory (DFT) calculations.

Language: Английский

Citations

0
Divergent Sc(OTf)3‐Catalyzed Tandem Cyclization of o‐Hydroxyphenyl Enaminones with 1,3,5‐Triazinanes: Access to C3‐Aminomethyl Chromones and Tetrahydropyrimidines DOI Open Access

Siyang Han,

Chengcheng Fang, Sifeng Li

et al.

Asian Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 9, 2024

Abstract A Sc(OTf) 3 ‐catalyzed tandem cyclization reaction of o ‐hydroxyphenyl enaminones with 1,3,5‐triazinanes has been developed to generate two distinct annulated products in moderate good yields, which is dominated by the electronic characteristics 1,3,5‐triazinanes. The 1,3,5‐triaryl‐1,3,5‐triazinane reacted as C−N synthon produce C3‐aminomethyl chromone, while 1,3,5‐trialkyl‐1,3,5‐triazinane acted C−N−C−N synthons deliver N , ‐dialkyl tetrahydropyrimidine a free hydroxyl group.

Language: Английский

Citations

0
Visible-light-induced decarboxylative cyclization DOI
Suven Das

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

The present review focuses on recent progress (2020–2024) in the visible-light-driven decarboxylative cyclization of various carboxylic acid derivatives for constructing carbo-/heterocycles.

Language: Английский

Citations

0
Progresses in the Preparation of Chromone Compounds and Their Applications in Organic Synthesis DOI
Zhonghao Li,

Yu Zeng,

Yong Zeng

et al.

Chinese Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 44(11), P. 3345 - 3345

Published: Jan. 1, 2024

Language: Английский

Citations

0