✦ LIBER ✦

Studies with quinolines: New synthetic routes to 4H,5H,6H,9H-benzo[ij]pyrano[2,3-b]quinolizine-8-one, 4H-pyrano[2,3-b]pyridine, 2H-pyran-2-one and pyranopyridoquinoline derivatives

✍ Scribed by Fathy Mohamad Abdel Aziz El-Taweel

Publisher: Journal of Heterocyclic Chemistry
Year: 2005
Tongue: English
Weight: 92 KB
Volume: 42
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570420529

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Several new benzo[ij]pyrano[2,3‐b]quinolizine‐8‐ones 5 and 4__H__‐pyrano[2,3‐b]pyridine 8 derivatives were synthesized from 4‐hydroxyquinolines 1. Reacting 3‐acetyl‐4‐hydroxy‐1‐phenyl‐1__H__‐quinoline‐2‐one with dimethylformamide dimethylacetal afforded 3‐(3‐Dimethylarnino‐acryloyl)‐4‐hydroxy‐1‐phenyl‐1__H__‐quinolin‐2‐one 9. This reacted with hippuric acid and diethyl 3‐oxoglutarate to give 2__H__‐pyran‐2‐one 13 and pyranopyridoquinoline 17 respectively.

📜 SIMILAR VOLUMES

Studies with Quinolines: New Synthetic R

Studies with Quinolines: New Synthetic Routes to 4H,5H,6H,9H-Benzo[ij]pyrano[2,3-b]quinolizine-8-one (III), 4H-Pyrano[2,3-b]pyridine (V), 2H-Pyran-2-one (IX) and Pyranopyridoquinoline (XI) Derivatives

✍ Fathy Mohamad Abdel Aziz El-Taweel 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 26 KB 👁 1 views

ChemInform Abstract: Friedlaender Reacti

ChemInform Abstract: Friedlaender Reaction on 2-Amino-3-cyano-4H-pyrans: Synthesis of Derivatives of 4H-Pyrano[2,3-b]quinoline, New Tacrine Analogues.

✍ A. MARTINEZ-GRAU; J. L. MARCO 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

ChemInform Abstract: Synthesis of 6-, 7-

ChemInform Abstract: Synthesis of 6-, 7-, 8- or 9-Substituted 1H-Pyrano[4,3-b]quinoline Derivatives by the Cyclization of 3-Acetyl-4-arylamino-2H-pyran-2-one Derivatives.

✍ A. SATO; M. MORONE; Y. AZUMA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

ChemInform Abstract: General Synthetic A

ChemInform Abstract: General Synthetic Approach to 4-Substituted 2,3-Dihydrofuro[2,3-b]pyridines and 5-Substituted 3,4-Dihydro-2H-pyrano[2,3-b]pyridines.

✍ Youssef Hajbi; Franck Suzenet; Mostafa Khouili; Said Lazar; Gerald Guillaumet 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 47 KB 👁 1 views

ChemInform Abstract: Studies in Sigmatro

ChemInform Abstract: Studies in Sigmatropic Rearrangement of 3-(4-Aryloxybut-2-ynyloxy)-1- methylquinolin-2-ones: Synthesis of 3H-Pyrano(2,3-c)quinolin-5(6H)- ones and Furo(2,3-c)quinolin-4(5H)-ones.

✍ K. C. MAJUMDAR; A. K. KUNDU 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

Microwave-Mediated Synthesis of 3,4,4a,1

Microwave-Mediated Synthesis of 3,4,4a,11a-Tetrahydro-5-phenyl/5-(4′-substitutedphenyl)-2H-indeno [1,2-b]pyrano[3,2-e]pyran-6(5H)-ones.

✍ Som N. Dhawan; Mamta Sharma; Sunita Bajaj; Kusum Sharma; Somesh Sharma 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 18 KB 👁 1 views