✦ LIBER ✦

Synthesis of new heterocyclic phenols: 9-hydroxy-pyrido [1,2-a] pyrimidine-4-one and 9-hydroxy-pyrimido[1,6-a]pyrimidine-4-one

✍ Scribed by F. Dennin; D. Blondeau; H. Sliwa

Publisher: Elsevier Science
Year: 1989
Tongue: French
Weight: 124 KB
Volume: 30
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)99510-8

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: A New, One-Pot, Thr

ChemInform Abstract: A New, One-Pot, Three-Component Synthesis of 4H-Pyrido[1,2-a]pyrimidines, 4H-Pyrimido[1,2-a]pyrimidines, and 4H-Pyrazino[1,2-a]pyrimidines.

✍ Mehdi Adib; Mohammad Hosein Sayahi; Hakimeh Ziyadi; Hamid Reza Bijanzadeh; Long- 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

## 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

Betaines from new heterocyclic phenols :

Betaines from new heterocyclic phenols : 9-oxido-pyrido[1,2-a]pyrimidin-5-ium and derivatives.

✍ F. Dennin; D. Blondeau; H. Sliwa 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 143 KB

9-(4-Methyoxylbenzoyl)-1,2,3,4,7,8-hexa

9-(4-Methyoxylbenzoyl)-1,2,3,4,7,8-hexahydropyrido[1,2-a]pyrimidin-6-one

✍ Peng, Tao ;Yan, Sheng-Jiao ;Yu, Chu-Yi ;Huang, Zhi-Tang 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 228 KB

In the title compound, C~16~H~18~N~2~O~3~, there is an intramolecular N—H...O hydrogen bond. Intermolecular C—H...O bonds stabilize the crystal packing.

Expeditious Synthesis of 5,6,7,8-Tetrahy

Expeditious Synthesis of 5,6,7,8-Tetrahydro-imidazo[1,2-a]pyrimidin-2-ones and 3,4,6,7,8,9-Hexahydro-pyrimido[1,2-a]pyrimidin-2-ones.

✍ Richa Pathak; Sanjay Batra 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 37 KB 👁 1 views

ChemInform Abstract: Heterocyclic Synthe

ChemInform Abstract: Heterocyclic Synthesis via Enaminonitriles: One-Pot Synthesis of Some New Pyrazole, Isoxazole, Pyrimidine, Pyrazolo[1,5-a]pyrimidine, Pyrimido[1,2-a]benzimidazole, and Pyrido[1,2-a]benzimidazole Derivatives.

✍ Kamal M. Dawood; Ahmad M. Farag; Zaghloul E. Kandeel 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

Substituted pyridopyrimidinones, 1: Conv

Substituted pyridopyrimidinones, 1: Convenient PTC alkylation and halogenation of 2-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one

✍ Mohamed Abass; Aisha S. Mayas 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB 👁 1 views

## Abstract Alkylation of 2‐hydroxy‐4__H__‐pyrido[1,2‐__a__]pyrimidin‐4‐one (**1**) was investigated under solid–liquid phase transfer catalysis conditions (PTC), using tetrabutylammonium bromide and potassium carbonate. The reaction with alkyl halides led to the formation of various 2‐alkoxy produ