Facile Construction of Imidazo‐benzothia‐/oxazepines by a Quick and Efficient van Leusen Protocol
Sign Up to like & getrecommendations! Published in 2017 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.201600531
Abstract: A facile, elegant, and operationally simple van Leusen protocol for the synthesis of bicyclic dihydrodibenzo[b,f]imidazo[1,2-d][1,4]thiazepines and dihydrodibenzo[b,f]imidazo[1,2-d][1,4]oxazepines is developed. The reaction proceeds without any catalyst and in high yields to provide bicyclic imidazo-dibenzothia-/oxazepines at room temperature… read more here.
Keywords: van leusen; leusen protocol; facile construction; construction imidazo ... See more keywords
Synthesis and pharmacological activity of 2-(biphenyl-4-yl)imidazo[1,2-a]benzimidazoles
Sign Up to like & getrecommendations! Published in 2017 at "Russian Chemical Bulletin"
DOI: 10.1007/s11172-017-1965-7
Abstract: An efficient method for the synthesis of novel 9H-imidazo[1,2-a]benzimidazole derivatives containing a biphenyl substituent at position 2 was developed. These compounds, belonging to the privileged substructures, have been tested for a wide range of pharmacological… read more here.
Keywords: activity biphenyl; synthesis pharmacological; pharmacological activity; imidazo ... See more keywords
Oxone®-mediated direct arylselenylation of imidazo[2,1-b]thiazoles, imidazo[1,2-a]pyridines and 1H-pyrazoles
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DOI: 10.1016/j.tet.2018.06.046
Abstract: Abstract Oxone mediated reaction of imidazo[2,1-b]thiazole, imidazo[1,2-a]pyridine and 1H-pyrazole derivatives with diaryl diselenides is presented here. The methodology represents an efficient and simple protocol for carrying out the selective synthesis of 5-arylselanyl-imidazo[2,1-b]thiazoles, 3-arylselanyl-imidazo[1,2-a]pyridines and 4-arylselanyl-1H-pyrazoles… read more here.
Keywords: mediated direct; oxone mediated; imidazo; direct arylselenylation ... See more keywords
Efficient and “Green” Synthetic Route to Imidazo[1,2-a]pyridine by Cu(II)–Ascorbate-Catalyzed A3-Coupling in Aqueous Micellar Media
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DOI: 10.1021/acsomega.8b03581
Abstract: An efficient and environmentally sustainable method for the synthesis of imidazo[1,2-a]pyridine derivatives by domino A3-coupling reaction catalyzed by Cu(II)–ascorbate was developed in aqueous micellar media in the presence of sodium dodecyl sulfate (SDS). The catalyst,… read more here.
Keywords: ascorbate; imidazo pyridine; aqueous micellar; imidazo ... See more keywords
Pd-catalyzed annulation of imidazo[1,2-a]pyridines with coumarins and indoles: synthesis of benzofuran and indole fused heterocycles.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d1cc06803b
Abstract: Palladium-catalyzed annulation of imidazo[1,2-a]pyridines with coumarins provided benzofuran fused transannulated products in good to excellent yields via a decarbonylative approach, while imidazo[1,2-a]pyridines with N-methyl indoles in the presence of palladium and base yielded conjugated imidazopyridine… read more here.
Keywords: imidazo pyridines; catalyzed annulation; pyridines coumarins; imidazo ... See more keywords
A New Fluorescent Probe of Hydrazine: 2-[4-(Imidazo[1,2-a]pyridin-3-ylethynyl)benzylidene]malononitrile
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry Letters"
DOI: 10.1246/cl.170169
Abstract: Hydrazine is widely used in a plenty of fields as a raw material and is closely related to our healthy. A new fluorescent probe of hydrazine was designed and synthesized, choosing imidazo[1,2-a]pyridine as the electron… read more here.
Keywords: fluorescent probe; probe; hydrazine; probe hydrazine ... See more keywords