Rh(III)‐Catalyzed C−H Annulation and Spirolactonization of 2‐Aryl‐1H‐benzo[d]imidazoles with 4‐Hydroxy‐2‐alkynoates via C−H bond activation DOI

G. Siva Sankaram,

Tanmoy Sahoo,

Myadari Madhu

et al.

Asian Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 12(11)

Published: Aug. 22, 2023

Abstract Rh(III) catalyzed C−H bond annulation and spirolactonization of 2‐aryl‐1 H‐ benzo[ d ]imidazoles with 4‐hydroxy‐2‐alkynoates has been developed for the first time synthesis a diverse range 2’,2’‐dimethyl‐2’ H ‐spiro[benzo[4,5]imidazo[2,1‐ ]isoindole fused dimethylbenzo[4,5]imidazo[2,1‐ ]furo[3,4‐ c ]isoquinoline derivatives. This method is versatile atom‐economical to produce polycyclic frameworks in single‐step.

Language: Английский

Modular Assembly of Pyrrolo[3,4-c]isoquinolines through Rh-Catalyzed Cascade C–H Activation/Annulation of O-Methyl Aryloximes with Maleimides DOI

Yinsong Wu,

Yanan Liu,

Yangzilin Kong

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(12), P. 8447 - 8457

Published: June 4, 2024

An efficient and practical strategy for the construction of pyrrolo[3,4-

Language: Английский

Citations

3

Copper(II)‐Catalyzed [2+2+2] Annulation of Enaminones with Maleimides Using a Traceless Directing Group Strategy DOI
Leiqing Fu, Hongxiang Huang, Yingying Jiang

et al.

Advanced Synthesis & Catalysis, Journal Year: 2024, Volume and Issue: 366(19), P. 4139 - 4144

Published: July 2, 2024

Abstract A copper‐catalyzed annulation of enaminones with maleimides was developed to synthesize various pyrrolo[3,4‐e]isoindoles. In this strategy, 2‐aminopyridine served as a traceless directing group, and target products were obtained in 54–72% yields. Moreover, plausible mechanism for reaction proposed based on several control experiments, deuterium exchange previous reports.

Language: Английский

Citations

3

A rhodium-catalyzed cascade C–H activation/annulation strategy for the expeditious assembly of pyrrolidinedione-fused 1,2-benzothiazines DOI

Yinsong Wu,

Guanghao Shi,

Yanan Liu

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(17), P. 3523 - 3532

Published: Jan. 1, 2024

We have developed a cascade annulation strategy triggered by rhodium( iii )-catalyzed C–H activation for the expeditious assembly of pyrrolidinedione-fused 1,2-benzothiazines from free NH-sulfoximines with maleimides under mild conditions.

Language: Английский

Citations

1

Recent progress in the application of amidines for the synthesis of N-heterocyclic compounds DOI
Fatemeh Doraghi, Somaye Karimian,

Hamed Navid

et al.

Monatshefte für Chemie - Chemical Monthly, Journal Year: 2024, Volume and Issue: 155(5), P. 419 - 439

Published: March 6, 2024

Language: Английский

Citations

0

Five-membered ring systems: With more than 1 N atom DOI
Larry Yet

Progress in heterocyclic chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 211 - 257

Published: Jan. 1, 2024

Language: Английский

Citations

0

Palladium-Catalyzed Annulation Reaction of Bay-Iodobiphenyls with Maleimides to Access 9,10-Phenanthrenedicarboximides DOI

Xin‐Yuan Long,

Na Huang,

C Cui

et al.

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

Published: Dec. 17, 2024

A palladium-catalyzed annulation reaction of bay-iodobiphenyls with maleimides was developed. This approach allows for the efficient synthesis a variety 9,10-phenanthrenedicarboximides, particularly polyalkoxy-substituted 9,10-phenanthrenedicarboximides potential liquid-crystalline properties. Research findings indicate that resulting product, N-hexyl-2,3,6,7-tetrakis(hexyloxy)-9,10-phenanthrenedicarboximide, exhibits promising, good

Language: Английский

Citations

0

Rh(III)‐Catalyzed C−H Annulation and Spirolactonization of 2‐Aryl‐1H‐benzo[d]imidazoles with 4‐Hydroxy‐2‐alkynoates via C−H bond activation DOI

G. Siva Sankaram,

Tanmoy Sahoo,

Myadari Madhu

et al.

Asian Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 12(11)

Published: Aug. 22, 2023

Abstract Rh(III) catalyzed C−H bond annulation and spirolactonization of 2‐aryl‐1 H‐ benzo[ d ]imidazoles with 4‐hydroxy‐2‐alkynoates has been developed for the first time synthesis a diverse range 2’,2’‐dimethyl‐2’ H ‐spiro[benzo[4,5]imidazo[2,1‐ ]isoindole fused dimethylbenzo[4,5]imidazo[2,1‐ ]furo[3,4‐ c ]isoquinoline derivatives. This method is versatile atom‐economical to produce polycyclic frameworks in single‐step.

Language: Английский

Citations

0