The Michael donor–acceptor reactivity of curcumins in the synthesis of diverse multi-functional scaffolds

B Laha, AR Tiwari, E Gravel, E Doris… - Organic & Biomolecular …, 2024 - pubs.rsc.org
Curcumin is a key constituent of turmeric with a variety of biological activities. From a
chemical point of view, curcumin contains different functional groups that can undergo …

Synthesis of in situ immobilized iron oxide nanoparticles (Fe3O4) on microcrystalline cellulose: Ecofriendly and recyclable catalyst for Michael addition

B Kumar, MS Reddy, KD Dwivedi… - Applied …, 2022 - Wiley Online Library
Microcrystalline cellulose‐immobilized Fe3O4 magnetic nanoparticles (Fe3O4@ MCC) with
iron loading 5%–20% are synthesized and characterized by scanning electron microscopy …

Regio-and stereoselective synthesis of functionalized tetrahydro-benzochromenes and hexahydrochromenochromenones via [4+ 2] annulation of curcumins with …

NN Irishi - Organic & Biomolecular Chemistry, 2023 - pubs.rsc.org
A base-mediated regio-and stereoselective synthesis of functionalized tetrahydro-6H-benzo
[c] chromenes and hexahydro-1H, 6H-chromeno [6, 5-c] chromenone is disclosed here. It …

Organocascade Synthesis of Spiro [chroman‐3, 2′‐indanedione] Scaffolds via [4+ 2] or [1+ 1+ 4] Cyclisation

VB Gudise, PC Settipalli, YP Reddy… - ChemistrySelect, 2021 - Wiley Online Library
A simple and convenient protocol has been demonstrated for the construction of spiro
[chroman‐3, 2′‐indanedione] via Oxa‐Michael/Michael cascade reaction sequence using …

Diastereoselective ABB′ three-component synthesis of highly functionalized spirooxindoles bearing five consecutive asymmetric carbons

T Vivekanand, BS Vachan… - The Journal of …, 2019 - ACS Publications
The synthesis of spirooxindoles bearing tetrahydro-4 H-cyclopenta [b] furan framework was
established starting from isatin-derived aldehydes and 2 equiv of 1, 3-dicarbonyl …

Regio-and stereoselective synthesis of functionalized and fused heterocycles from Morita–Baylis–Hillman adducts of dicyclopentadienone

A Suresh, S Lal, INN Namboothiri - Organic & Biomolecular Chemistry, 2022 - pubs.rsc.org
An efficient protocol for the Morita–Baylis–Hillman (MBH) reaction of dicyclopentadienone
using CTAB has been developed. The MBH adduct was subsequently transformed to its …

Diastereoselective synthesis of highly substituted cyclohexanones and tetrahydrochromene-4-ones via conjugate addition of curcumins to arylidenemalonates

D Nair, A Tiwari, B Laha… - Beilstein Journal of …, 2024 - beilstein-journals.org
A cascade inter–intramolecular double Michael strategy for the synthesis of highly
functionalized cyclohexanones from curcumins and arylidenemalonates is reported. This …

Highly Diastereoselective Synthesis of Multifunctionalized Dihydrofurans by a K3PO4‐Promoted Michael Addition‐Alkylation Reaction

J Feng, J Feng, J Li, A Huang, H Hu, S Yang… - …, 2023 - Wiley Online Library
A simple and beneficial strategy for the construction of 2, 3‐dihydrofurans from α‐
bromochalcones and α‐substituted cyanoketones via Michael addition‐alkylation reaction …

Synthesis of β-triazolylenones via metal-free desulfonylative alkylation of N-tosyl-1, 2, 3-triazoles

S Pati, RG Almeida, EN da Silva Júnior… - Beilstein journal of …, 2021 - beilstein-journals.org
Desulfonylative alkylation of N-tosyl-1, 2, 3-triazoles under metal-free conditions leading to β-
triazolylenones is reported here. The present study encompasses the synthesis of triazoles …

[PDF][PDF] Stereoselective synthesis of linear oxa-triquinanes and oxa-diquinanes via Lewis acid mediated nucleophilic addition to oxonium ions: study of nucleophile …

SJ Gharpure, P Niranjana, SK Porwalc - Arkivoc, 2022 - arkat-usa.org
A simple and reliable approach was developed for the stereoselective construction of
symmetrical linear dioxatriquinanes and oxadiquinanes via Lewis acid mediated …