𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cyclocondensation of Cyanoketene Dithioacetal with 2-Aminopyridine: Synthesis of Pyrido[1,2-a]pyrimidines.

✍ Scribed by Okram Mukherjee Singh; Mohd Farooque Ahmed

Publisher
John Wiley and Sons
Year
2004
Weight
21 KB
Volume
35
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

For Abstract see ChemInform Abstract in Full Text.

📜 SIMILAR VOLUMES

Nitriles in Organic Synthesis: Synthesis
Nitriles in Organic Synthesis: Synthesis of aromatic amines, aminopyridines, pyrido[2,3-b] pyridine and pyrido[2,3-d]pyrimidine derivatives
✍ Dr. F. M. El-Taweel 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 234 KB

## Abstract The reaction of the α‐arylethylidenemalononitrile derivatives 1a, c with piperonylidenemalononitrile (2a) and with ethyl piperonylidenecyanoacetate (2b) yield 1‐amino‐3,5‐diaryl‐2,6‐benzenedicarbonitrile (3a, c). Phenylaminopyridines 5a, b were obtained from the reaction of 1a, b with p

Condensation of substituted 2-aminopyrid
Condensation of substituted 2-aminopyridine with β-ketocarboxylic esters: 4H-pyrido[1,2-a]pyrimidin-4-ones and pyridin-2-ones
✍ Pier Luigi Ferrarini; Claudio Mori; Clementina Manera; Filippo Mori; Vincenzo Ca 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 268 KB 👁 1 views

## Abstract We report the condensation of substituted 2‐aminopyridines 5 with β‐ketocarboxylic esters in polyphosphoric acid. In this reaction were obtained together with the target compounds, 4__H__‐pyrido[1,2‐__a__]pyrirnidin‐4‐ones 6 also the pyridin‐2‐ones 7. All the compounds 7 were tested for

Cyclisation of 3-alkenylpyrido[1,2-a]pyr
Cyclisation of 3-alkenylpyrido[1,2-a]pyrimidines to furo[2,3-d]pyrido[1,2-a]pyrimidines
✍ Mustafa Güllü; Sibel Uzun; Serkan Yalçιn 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 74 KB

3-Alkenylpyrido[1,2-a]pyrimidines react under mild conditions to give novel tricyclic furo [2,3-d]pyrido [1,2a]pyrimidines in high yields. The cyclisation takes place in the presence of an acid catalyst. The product yield is affected by the type and the strength of the acid used. Exceptionally high