✦ LIBER ✦

Synthesis of pyrazolo[3,4-b]pyridines using ammonium acetate as green reagent in multi-component reactions

✍ Scribed by Madhukar N. Jachak; Appasaheb B. Avhale; Bhausaheb K. Ghotekar; Dhananjay B. Kendre; B. Toche Raghunath

Publisher: Journal of Heterocyclic Chemistry
Year: 2008
Tongue: English
Weight: 228 KB
Volume: 45
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570450447

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

magnified image

Several new pyrazolo[3,4‐b]pyridine derivatives were synthesized by one pot cyclocondensation of the components; 5‐amino‐3‐aryl‐1__H__‐phenylpyrazoles, p‐substituted benzoylacetonitriles and some aldehydes. The condensations were most effective by using ammonium acetate as the base catalyst; triethylamine was also studied as a catalyst.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis of Pyrazo

ChemInform Abstract: Synthesis of Pyrazolo[3,4-b]pyridines Using Ammonium Acetate as Green Reagent in Multi-Component Reactions.

✍ Madhukar N. Jachak; Appasaheb B. Avhale; Bhausaheb K. Ghotekar; Dhananjay B. Ken 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 27 KB

ChemInform Abstract: Controllable Synthe

ChemInform Abstract: Controllable Synthesis of Pyrazolo[3,4-b]pyridines or Substituted Malononitrile Derivatives Through Multi-Component Reactions in Ionic Liquid.

✍ Xinying Zhang; Xiaoyan Li; Xuesen Fan; Xia Wang; Jianji Wang; Guirong Qu 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 31 KB

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

A Green Approach to the Synthesis of Bio

A Green Approach to the Synthesis of Biologically Important Indeno[2,1-e]pyrazolo[5,4-b]pyridines via Microwave-assisted Multi-component Reactions in Water

✍ Feng SHI; Yan ZHANG; Shu-Jiang TU; Dian-Xiang ZHOU; Chun-Mei LI; Qing-Qing SHAO; 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 79 KB 👁 1 views

Three-Component Condensation of Diethyl

Three-Component Condensation of Diethyl 2,4,6-Trioxoheptanedicarboxylate with Salicylaldehyde and Ammonium Acetate as a New Method for the Synthesis of the [1]Benzopyrano[4,3-b]pyridine System.

✍ V. A. Mamedov; L. P. Sysoeva; A. T. Gubaidullin; A. I. Zamaletdinova; I. A. Litv 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 13 KB 👁 1 views

A facile synthesis of furo[3,4-e]pyrazol

A facile synthesis of furo[3,4-e]pyrazolo[3,4-b]pyridine-5(7H)-one derivatives via three-component reaction in ionic liquid without any catalyst

✍ Da-Qing Shi; Fang Yang; Sai-Nan Ni 📂 Article 📅 2009 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 204 KB

## Abstract magnified image A series of furo[3,4‐__e__]pyrazolo[3,4‐__b__]pyridine‐5(7__H__)‐one and indeno[2,1‐__e__]pyrazolo[3,4‐__b__]pyridine‐5(1__H__)‐one derivatives were synthesized via the three‐component reaction of an aldehyde, 5‐aminopyrazole and either tetronic acid or 1,3‐indanedione

ChemInform Abstract: A Facile Synthesis

ChemInform Abstract: A Facile Synthesis of Furo[3,4-e]pyrazolo[3,4-b]pyridine-5(7H)-one Derivatives via Three-Component Reaction in Ionic Liquid Without any Catalyst.

✍ Da-Qing Shi; Fang Yang; Sai-Nan Ni 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 25 KB 👁 1 views