A review on 2-arylidene-1,3-indanediones: preparation and applications to the synthesis of diverse spirocyclic compounds DOI

Divyavani Chitteti,

Pannala Padmaja,

V. Saritha Rani

et al.

Monatshefte für Chemie - Chemical Monthly, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 21, 2024

Language: Английский

A novel recyclable hydrolyzed nanomagnetic copolymer catalyst for green, and one-pot synthesis of tetrahydrobenzo[b]pyrans DOI Creative Commons
Behrooz Maleki,

Samaneh Sedigh Ashrafi,

Pouya Ghamari Kargar

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Dec. 28, 2024

Language: Английский

Citations

13
New tandem Ugi/intramolecular Diels–Alder reaction based on vinylfuran and 1,3-butadienylfuran derivatives DOI Creative Commons
Yuriy I. Horak, Roman Z. Lytvyn,

A.R. Vakhula

et al.

Beilstein Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: 21, P. 444 - 450

Published: Feb. 26, 2025

A new tandem sequence involving the Ugi reaction and Diels-Alder [4 + 2] cycloaddition based on vinylfuran 1,3-butadienylfuran derivatives was designed studied. It found that in case of 3-(furan-2-yl)acrylaldehyde, a one-pot intramolecular vinylarene (IMDAV) leads to formation insufficiently studied furo[2,3-f]isoindole derivatives. adducts formed from (E)-3-(furan-2-yl)acrylaldehyde, maleic acid monoanilide, isonitrile, an amine spontaneously underwent IMDAV with high level stereoselectivity, leading single pairs enantiomers 4,4a,5,6,7,7a-hexahydro-3aH-furo[2,3-f]isoindole core excellent yields. Under same conditions, (2E,4E)-5-(furan-2-yl)penta-2,4-dienal gives adduct undergoes IMDA without furan core. The 2,3,3a,4,5,7a-hexahydro-1H-isoindoles reactions allow substituent variation named isoindoles.

Language: Английский

Citations

0
A facile and green procedure in preparing dibenzo-chromeno-phenazine-diones using an effectual and recyclable Brønsted acidic ionic liquid DOI Creative Commons
Chou-Yi Hsu,

Riyadh Abdulkareem,

Harikumar Pallathadka

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 5, 2024

Abstract First, a Brønsted acid ionic liquid (BAIL) in the role of double acid-base called 1,3-n-propyl-bipyridinium bisulfonic acid-ditrifluoroacetate (PBPBSDT) was produced, and its skeleton determined via TGA, mass, 13 C NMR, 19 F 1 H NMR FT-IR data. Further, it successfully applied preparation dibenzo-chromeno-phenazine-dione derivatives ( 1a - 12a , 9–15 min, 90–98%) one-pot multicomponent domino reaction among 2 mmol 2-hydroxynaphthalene-1,4-dione, benzene-1,2-diamine, aldehydes under optimal conditions (5 mol% PBPBSDT, solvent-free, 60 °C). The proper reproducibility PBPBSDT homogeneous catalyst times), solvent-free medium, reasonable TON (Turnover Number) TOF Frequency) numbers, non-metallic framework catalyst, formation C-N, = N, C-C, C, C-O bonds single operation are distinct advantages this protocol.

Language: Английский

Citations

0
A review on 2-arylidene-1,3-indanediones: preparation and applications to the synthesis of diverse spirocyclic compounds DOI

Divyavani Chitteti,

Pannala Padmaja,

V. Saritha Rani

et al.

Monatshefte für Chemie - Chemical Monthly, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 21, 2024

Language: Английский

Citations

0