Microwave‐Assisted Iron(III)Chloride Catalyzed One‐Pot Michael Addition‐Cyclization for the Synthesis of 6<i>H</i>‐Chromeno[4’,3’:4,5] imidazo[1,2‐a]pyridine

Mishra, Mitali; Mishra, Nilima Priyadarsini; Raiguru, Bishnu Prasad; Das, T. P.; Mohapatra, Seetaram; Nayak, Smita; Mishra, Deepak R.; Panda, Jasmine; Sahoo, Dipak Kumar

doi:10.1002/slct.202100165

Cited by 14 publications

(6 citation statements)

References 36 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, continuous efforts have been made to synthesize more chromene‐fused heterocyclic molecules. Encouraged by their continuing research in constructing chromene‐fused heterocycles, Mishra et al [203] . in 2021 reported an anhydrous iron(III) chloride catalyzed efficient one‐pot Michael addition‐cyclization reaction for the synthesis of 6 H ‐chromeno[4′,3′ : 4,5]imidazo[1,2‐ a ]pyridine 271 from 2‐aryl‐3‐nitro‐ 2H ‐chromene 269 and 2‐aminopyridine derivatives 270 under microwave irradiation method in moderate to high yields.…”

Section: Development Of Various Methods Towards the Synthesis Of Imid...mentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in the Synthesis of Imidazo[1,2‐a]pyridines: A Brief Review

et al. 2022

Self Cite

View full text Add to dashboard Cite

This review focuses on providing comprehensive highlights of the recent synthetic pathways of imidazo[1,2‐a]pyridines, assisted through transition metal‐catalyzed reactions, multi‐component reactions, cyclization, condensation, microwave‐assisted reactions, heteroannular and photocatalytic reactions. Among the heterocyclic groups, imidazo[1,2‐a]pyridines are considered as privileged structures because of their occurrence in many natural products. In this review, we have summarized the recent advances in the synthesis of imidazo[1,2‐a]pyridines from 2016 to 2021 from various substrates. This review will provide new initiatives to the chemists towards the synthesis of imidazo[1,2‐a]pyridines and all frequent challenges associated with the reported methods.

show abstract

Section: Development Of Various Methods Towards the Synthesis Of Imid...mentioning

confidence: 99%

“…[202] Therefore, continuous efforts have been made to synthesize more chromene-fused heterocyclic molecules. Encouraged by their continuing research in constructing chromene-fused heterocycles, Mishra et al [203]…”

Section: Microwave-assisted Reactionsmentioning

confidence: 99%

Recent Advances in the Synthesis of Imidazo[1,2‐a]pyridines: A Brief Review

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…This procedure has several notable advantages, including rapid reaction times, ease of operation, and tolerance to a broad range of functional groups. 68…”

Section: Review Synopenmentioning

confidence: 99%

Microwave-Assisted Synthesis of Heterocyclic Scaffolds

Agarwal,

Kumar,

Maurya

2024

SynOpen

View full text Add to dashboard Cite

In recent years, there has been a notable surge in the utilization of microwave energy, leading to the emergence of innovative and groundbreaking methods across various branches of chemistry, including organic synthesis, materials science, heterocyclic chemistry, and medicinal chemistry. This comprehensive literature review delves into the microwave-assisted organic synthesis of specific heterocycles, illuminating its effectiveness in producing diverse molecules with heightened efficiency and selectivity. The review highlights the significant role of microwave irradiation as a potent method for constructing a wide range of compounds. Particular emphasis is placed on the impact of the technique on synthesizing various hybrids such as 1,2,3-triazole hybrids, coumarin hybrids, imidazopyridine hybrids, phenanthridines hybrids, carbene hybrids, and oxazole hybrids. This article is valuable as it offers insights into current synthetic procedures and trends in developing innovative medications utilizing heterocyclic compounds.1 Introduction2 Synthesis of 1,2,3-Triazole Hybrids3 Coumarin Hybrids4 Imidazo Pyridine Hybrids5 Phenanthridine Hybrids6 Carbene Hybrids7 Oxazole Hybrids8 Conclusion

show abstract

“…17,18 Note that our group has already reported aza/carba-Michael addition reactions with 3-nitro-2H-chromene derivatives and examined the antibacterial properties. [19][20][21] In 2017, Yang et al were the first to report a DCM-mediated catalyst-free sulfa Michael addition reaction involving heteroaromatic thiols and aliphatic nitrostyrene. 22 There have been a few other instances of Michael addition reactions between thiophenol to 1-nitrocyclohexene and various a,b-unsaturated compounds.…”

Section: Introductionmentioning

confidence: 99%