Carbonylative Cyclization of Biaryl Enones with Aldehydes and Oxamic Acids DOI
Chada Raji Reddy, Dattahari H. Kolgave,

Sana Fatima

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(24), P. 4901 - 4911

Published: Jan. 1, 2024

An oxidative radical-promoted carbonylative cyclization strategy for the synthesis of phenanthren-9-(10

Language: Английский

Iron-Catalyzed Oxidative Decarboxylation of Oxamic Acids: A Safe and Efficient Photochemical Route to Urethanes DOI
Yannick Landais, Gülbin Kurtay,

Jonathan Lusseau

et al.

Synlett, Journal Year: 2023, Volume and Issue: 35(03), P. 342 - 346

Published: July 17, 2023

Abstract This study presents a facile method for synthesizing urethanes through the photocatalyzed oxidative decarboxylation of oxamic acids. The process involves formation an isocyanate in situ from acid under blue-light irradiation (427 nm) presence ferrocene as photocatalyst, 2-picolinic ligand, and potassium bromate oxidant. one-pot procedure effectively avoids need separation, purification, storage carcinogenic isocyanates, making it safer more practical obtaining target easily accessible starting materials.

Language: Английский

Citations

6
Cascade Cyclizations Triggered by Photochemically Generated Carbamoyl Radicals Derived from Alkyl Amines DOI

Ganesh Chandra Upreti,

Tavinder Singh,

Divakar Chaudhary

et al.

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(16), P. 11801 - 11808

Published: Aug. 9, 2023

We report on a visible light-mediated cascade carbamoylation/cyclization of acrylamides using dihydropyridyl carbamoyl donors derived from alkyl amines. Diversely selected including 2-cyano-N-arylacrylamides, indolyl- and benzimidazolyl acrylamides, 2-alkynyl-N-aryl participate in this reaction, providing products good yields. The highlights photochemical method include the application amine-derived donors, peroxide-free reaction conditions, broad scope.

Language: Английский

Citations

6
Photoredox Ni-catalyzed decarboxylative arylation of oxamic acids for amide synthesis DOI

Depeng Duan,

Song Lu

Organic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 11(1), P. 47 - 52

Published: Nov. 7, 2023

Readily accessible oxamic acids are employed as carbamoyl radical precursors in photoredox nickel catalysis for amide synthesis.

Language: Английский

Citations

5
Generation of Carbamoyl Radicals and 3,4-Dihydroquinolin-2(1H)-ones Enabled by Iron Photoredox Catalysis DOI
Tao Cai, Gaofeng Feng, Yan‐Hua Fu

et al.

Synlett, Journal Year: 2024, Volume and Issue: unknown

Published: May 16, 2024

Abstract A new protocol for accessing 3,4-dihydroquinolin-2(1H)-ones was established through a sequence of iron-catalyzed photoredox generation carbamoyl radicals from oxamic acids, addition the to electron-deficient alkenes, intramolecular cyclization, and aromatization. The process is compatible with variety N-phenyloxamic acids monosubstituted, 1,1-disubstituted, trisubstituted alkenes. Employing cheap, readily available, environmentally benign iron as catalyst, provides an excellent alternative synthesis 3,4-dihydroquinolin-2(1H)-ones.

Language: Английский

Citations

1
Carbonylative Cyclization of Biaryl Enones with Aldehydes and Oxamic Acids DOI
Chada Raji Reddy, Dattahari H. Kolgave,

Sana Fatima

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(24), P. 4901 - 4911

Published: Jan. 1, 2024

An oxidative radical-promoted carbonylative cyclization strategy for the synthesis of phenanthren-9-(10

Language: Английский

Citations

1