ChemInform Abstract: Novel Synthesis of Some New Pyrimido[1,6-a]pyrimidine and Pyrazolo[1,5-a]pyrimidine Derivatives.

Novel synthesis of some new pyrimido[1,6

Novel synthesis of some new pyrimido[1,6-a]pyrimidine and pyrazolo[1,5-a]pyrimidine derivatives

✍ Ahmed M. Hussein 📂 Article 📅 2011 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 323 KB

ChemInform Abstract: Synthesis of Some N

ChemInform Abstract: Synthesis of Some New Pyrazolo[1,5-a]pyrimidines.

✍ Sayed A. Ahmed; Abdou O. Abdelhamid; Ahmed H. H. El-Ghandour; Mahmoud A. Mohamed 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 40 KB 👁 1 views

ChemInform Abstract: Synthesis of Some N

ChemInform Abstract: Synthesis of Some New Pyrimidine and Pyrimido[4,5-d]pyrimidine Derivatives.

✍ Ahmed A. Fadda; Ehab Abd El-Latif; Samir Bondock; Ahmed Samir 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 30 KB 👁 1 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

Synthesis and Antimicrobial Evaluation o

Synthesis and Antimicrobial Evaluation of Novel Pyrazolo[1,5-a]pyrimidine, Triazolo[1,5-a]pyrimidine and Pyrimido[1,2-a]benzimidazole Derivatives.

✍ Mohamed R. Shaaban; Tamer S. Saleh; Ahmad M. Farag 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 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, please click on HTML or PDF.

Synthesis of some new pyrimido[1,6-a]pyr

Synthesis of some new pyrimido[1,6-a]pyrimidines

✍ S. Pegiadou-Koemtjopoulou; G. Tsatsaronis 📂 Article 📅 1986 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 160 KB

Pyrimidine Derivatives and Related Compo

Pyrimidine Derivatives and Related Compounds II: Synthesis of some derivatives of pyrimido[1,2:2′,3′]pyrazolo[1,5-a]pyrimidines, a new ring system

✍ Mohamed Helmi Elnagdi; Mohamed Mohamed Mohamed Sallam; Mohamed Ajmal Mohamed Ili 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 German ⚖ 705 KB

## Abstract 3,5‐Diamino‐4‐phenylazo‐pyrazoles (**1a–1c**) react with acetylacetone and with ethyl acetoacetate to yield the corresponding pyrazolo[1,5‐a]pyrimidine derivatives **2a–2c** and **3a–3c**, respectively. Whereas **1a–1c** add readily to methyl acrylate yielding the 4,5,6,7‐tetrahydropyr