✦ LIBER ✦

ChemInform Abstract: A Copper-Mediated Cyclization Reaction of Hydrazine with Enediynones Providing Pyrazolo[1,5-a]pyridines.

✍ Scribed by Hung-Chou Wu; Long-Chih Hwang; Ming-Jung Wu

Publisher: John Wiley and Sons
Year: 2011
Weight: 29 KB
Volume: 42
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201123145

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

2,7‐Disubstituted pyrazolopyridines (II) and (IV) are synthesized in moderate to good yields by a cascade cyclization reaction of enediynones (I) and (III) with hydrazine, promoted by copper chloride.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis of 2-Subs

ChemInform Abstract: Synthesis of 2-Substituted Pyrazolo[1,5-a]pyridines Through Cascade Direct Alkenylation/Cyclization Reactions.

✍ James J. Mousseau; Angelique Fortier; Andre B. Charette 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB

ChemInform Abstract: Synthesis and React

ChemInform Abstract: Synthesis and Reactions of Pyrazolo[1,5-a]pyridines and Related Heterocycles

✍ Jackie D. Kendall 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 18 KB 👁 2 views

ChemInform Abstract: The Reaction of Phe

ChemInform Abstract: The Reaction of Phenacyl Malononitrile with Hydrazines: Synthesis of New Pyridazinones and Pyrazolo[1,5-a]pyrimidines.

✍ M. H. ELNAGDI; I. EL-GHAMRY; E. KANDEEL; A. H. A. RAHMAN; A. A. AL-NAGGAR; S. AM 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

ChemInform Abstract: Effective and Varia

ChemInform Abstract: Effective and Variable Functionalization of Pyrazolo[1,5-a]pyridines Involving Palladium-Catalyzed Coupling Reactions.

✍ Tarek Aboul-Fadl; Stefan Loeber; Peter Gmeiner 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 33 KB

ChemInform Abstract: Reaction of 3,5-Dia

ChemInform Abstract: Reaction of 3,5-Diamino-4-carbomethoxypyrazole with Acetoacetic Ester. Synthesis of Pyrazolo[1,5-a]pyrimidine.

✍ V. A. Makarov; N. P. Solov'ena; V. V. Chernyshev; E. J. Sonneveld; V. G. Granik 📂 Article 📅 2000 🏛 John Wiley and Sons ⚖ 29 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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

ChemInform Abstract: Reaction of 5-Amino

ChemInform Abstract: Reaction of 5-Aminopyrazoles with β-Dimethylaminopropiophenones. Synthesis of New Pyrazolo[3,4-b]pyridines.

✍ J. QUIROGA; B. INSUASTY; S. CRUZ; P. HERNANDEZ; A. BOLANOS; R. MORENO; A. HORMAZ 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

Reaction of 5-Aminopyrazoles with β-Dimethylaminopropiophenones. Synthesis of New Pyrazolo [3,4-b]pyridines. -Reaction of 5aminopyrazoles (I) with β-aminopropiophenones (II) provides a new and simple synthetic entry into the pyrazolo[3,4-b]pyridine ring system. Oxidation of the dihydro-products (II