[HTML][HTML] Recent advances in the microwave-and ultrasound-assisted green synthesis of coumarin-heterocycles

B Borah, KD Dwivedi, B Kumar, LR Chowhan - Arabian Journal of …, 2022 - Elsevier
Given the importance of the highly reactive nature and attractiveness of coumarins as a
precursor of natural products and pharmacological agents, tremendous efforts have been …

[PDF][PDF] The green chemistry paradigm in modern organic synthesis

SG Zlotin, KS Egorova, VP Ananikov… - RUSSIAN CHEMICAL …, 2023 - researchgate.net
After the appearance of the green chemistry concept, which was introduced in the chemistry
vocabulary in the early 1990s, its main statements have been continuously developed and …

[HTML][HTML] Asymmetric organocatalyzed synthesis of coumarin derivatives

NM Moreira, LSR Martelli… - Beilstein Journal of …, 2021 - beilstein-journals.org
Coumarin derivatives are essential scaffolds in medicinal and synthetic chemistry.
Compounds of this class have shown important activities, such as anticancer and …

Synthesis of novel tetracyclic coumarin-fused furo-pyridone scaffolds via sequential N-arylation and intramolecular amidation reactions

M Adib, M Ghanbarlou, M Soheilizad… - Tetrahedron …, 2021 - Elsevier
An efficient synthesis of 4H-chromeno [4, 3-b] furo [2, 3-d] pyridine-1-carboxylates as novel
tetracyclic coumarin-fused furo-pyridone scaffolds is described. The protocol involves the …

Enantioselective synthesis of coumarins catalyzed by an isosteviol‐derived tertiary amine‐squaramide catalyst

Z Ma, C Wang, X Liu, X Chen, J Tao, Q Lv - Chirality, 2022 - Wiley Online Library
A newly tertiary amine‐squaramide organocatalyst has been successfully developed and
applied into the asymmetric Michael addition of 4‐hydroxycoumarin to β, γ‐unsaturated α …

Ni (OTf) 2-Catalyzed Michael Addition Reactions of 4-Hydroxycoumarins to α, β-Unsaturated 2-Acyl Imidazoles

H Wang, F Gong, P Xue, H Lu, X Wang, J Gong - Synlett, 2024 - thieme-connect.com
An efficient Michael addition of 4-hydroxycoumarins to α, β-unsaturated 2-acyl imidazoles
catalyzed by Ni (OTf) 2 as a Lewis acid has been developed. A series of 4-hydroxycoumarin …

Novel 5-Ethoxy-5H-5λ5-[1,2,4]triazolo[5,1-e][1,4,2]diazaphosphol-5-ones: One-Pot Synthesis, Characterization, and Antimicrobial Activities

TE Ali, MA Assiri - Russian Journal of Organic Chemistry, 2022 - Springer
A simple one-pot method has been proposed for a series of novel [1, 2, 4] triazolo [5, 1-e][1,
4, 2] diazaphosphole derivatives by three-component condensation of the corresponding …

Enantioselective Synthesis of Coumarins Catalyzed by Chiral Squaramide

Z Liu, Z Ma, C Wang, D Ding, J Liu… - Letters in Organic …, 2022 - benthamdirect.com
A newly chiral tertiary amine-squaramide has successfully developed and applied into the
asymmetric Michael addition of 4-hydroxycoumarin to β, γ-unsaturated α-ketoesters. The …

[HTML][HTML] 1. Парадигма" зеленой" химии в современном органическом синтезе

СГ Злотин, КС Егорова, ВП Анаников… - Russian Chemical …, 2023 - uspkhim.ru
Аннотация С момента появления концепции" зеленой химии", введенной в химический
лексикон в начале 90-х годов ХХ в., ее основные положения непрерывно …