Access to 2,3‐Unsubstituted Imidazo[2,1‐b][1,3]benzothiazole Using Ethylene Glycol as a C2 Precursor and Subsequent Regioselective C3 Functionalization DOI

Sujit Maity,

Niranjan Panda

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(12)

Published: March 19, 2024

Abstract Synthesis of imidazo[2,1‐ b ][1,3]benzothiazoles by oxidative coupling 2‐aminobenzothiazoles with vicinal diol was reported. Expectedly, a combination potassium persulfate and TEMPO oxidized ethylene glycol to α‐hydroxy acetaldehyde, which coupled 2‐aminobenzothiazole afford 2,3‐unsubstituted ][1,3]benzothiazoles. The later exploited as reliable handle access 3‐substituted regioselectively.

Language: Английский

Nanocrystalline ZnO: A Competent and Reusable Catalyst for the Preparation of Pharmacology Relevant Heterocycles in the Aqueous Medium DOI
Moumita Saha, Asish R. Das

Current Green Chemistry, Journal Year: 2020, Volume and Issue: 7(1), P. 53 - 104

Published: Feb. 18, 2020

: Nanoparticle catalyzed synthesis is a green and convenient method to achieve most of the chemical transformations in water or other solvents. ensures an easy isolation process catalyst as well products from reaction mixture avoiding hectic work up procedure. Zinc oxide biocompatible, environmentally benign economically viable nanocatalyst with effectivity comparable metal employed several strategies. This review mainly focuses on recent applications zinc biologically important heterocyclic molecules under sustainable conditions. Application organic synthesis: Considering achievable advantages this nanocatalyst, presently research groups are paying attention anchoring zincoxide its modified structure types conversions e.g. multicomponent reactions, ligand-free coupling cycloaddition reaction, etc. The limitations also demonstrated. present study aims highlight multifaceted ZnO towards diverse motifs. Being promising biocompatible nanoparticle, has contribution fields synthetic chemistry medicinal chemistry.

Language: Английский

Citations

8
Synthesis of indoles through acceptorless dehydrogenative coupling catalyzed by nickel on silica-alumina DOI Creative Commons

Aubin Charvieux,

Abdul Aziz Hammoud,

Marie‐Christine Duclos

et al.

Tetrahedron Letters, Journal Year: 2021, Volume and Issue: 78, P. 153270 - 153270

Published: July 10, 2021

Language: Английский

Citations

6
Zinc Oxide (ZnO): an Amphoteric Metal Oxide with Dehydrogenating Activity DOI Creative Commons
Rafael Ballesteros‐Garrido, Rosa Adam

SynOpen, Journal Year: 2023, Volume and Issue: 07(02), P. 142 - 144

Published: March 28, 2023

Abstract

Language: Английский

Citations

2
Sustainable aromatic polyesters with 1,5-disubstituted indole units DOI Creative Commons
Ping Wang, Baozhong Zhang

RSC Advances, Journal Year: 2021, Volume and Issue: 11(27), P. 16480 - 16489

Published: Jan. 1, 2021

1,5-disubstituted indole was investigated as new sustainable aromatic units for polyesters to enhance thermal stability.

Language: Английский

Citations

4
Access to 2,3‐Unsubstituted Imidazo[2,1‐b][1,3]benzothiazole Using Ethylene Glycol as a C2 Precursor and Subsequent Regioselective C3 Functionalization DOI

Sujit Maity,

Niranjan Panda

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(12)

Published: March 19, 2024

Abstract Synthesis of imidazo[2,1‐ b ][1,3]benzothiazoles by oxidative coupling 2‐aminobenzothiazoles with vicinal diol was reported. Expectedly, a combination potassium persulfate and TEMPO oxidized ethylene glycol to α‐hydroxy acetaldehyde, which coupled 2‐aminobenzothiazole afford 2,3‐unsubstituted ][1,3]benzothiazoles. The later exploited as reliable handle access 3‐substituted regioselectively.

Language: Английский

Citations

0