✦ LIBER ✦

A novel and direct synthetic route to substituted 1,5-dihydro-4H-[1]benzopyrano[4,3-b]pyridine-4,5-diones

✍ Scribed by Jan Světlík; Nad'A Prónayová; Vladimír Hanuš

Publisher: Journal of Heterocyclic Chemistry
Year: 2000
Tongue: English
Weight: 370 KB
Volume: 37
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570370227

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The condensation of 4‐hydroxy‐6‐methyl‐2__H__‐pyran‐2‐one and substituted 2‐hydroxybenzaldehydes with ammonium acetate gave the title heterocycles. Synthesis of 1,5‐dihydro‐2‐methyl‐4__H__‐[1]naphtho‐[1′,2′:5,6]pyrano[4,3‐b]‐pyridine‐4,5‐dione is also described. A reaction mechanism is discussed.

📜 SIMILAR VOLUMES

ChemInform Abstract: A Novel and Direct

ChemInform Abstract: A Novel and Direct Synthetic Route to Substituted 1,5-Dihydro-4H-[1]benzopyrano[4,3-b]pyridine-4,5-diones (III).

✍ Jan Svetlik; Nad'a Pronayova; Vladimir Hanus 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 2 views

New Synthetic Approach to [1]Benzopyrano

New Synthetic Approach to [1]Benzopyrano[4,3-b]pyridin-5-one Derivatives.

✍ Egle M. Beccalli; Alessandro Contini; Pasqualina Trimarco 📂 Article 📅 2004 🏛 John Wiley and Sons ⚖ 148 KB 👁 1 views

Convenient Synthetic Routes to 5-Substit

Convenient Synthetic Routes to 5-Substituted 3-(4-Methoxyphenyl)-4(1H)-quinolones.

✍ Benoit Joseph; Aurelie Behard; Brigitte Lesur; Gerald Guillaumet 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 156 KB 👁 1 views

ChemInform Abstract: A Facile Route to P

ChemInform Abstract: A Facile Route to Pyrazolo[3,4-b]pyridines and [1]Benzopyrano[4′,3′-e]pyrazolo[3,4-b]pyridines.

✍ Gowravaram Sabitha; R. Srividya; B. Archana; J. S. Yadav 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 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

Substituted Coumarin Amidines: Useful Bu

Substituted Coumarin Amidines: Useful Building Blocks for the Preparation of [1]Benzopyrano[4,3-b]pyridin-5-one and [1]Benzopyrano[4,3-d]pyrimidin-5-one Derivatives.

✍ Egle M. Beccalli; Alessandro Contini; Pasqualina Trimarco 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 25 KB 👁 2 views