✦ LIBER ✦

Synthesis and theoretical calculations of novel 5-aryl substituted 2,4,7-trioxo and 4,7-dioxo-2-thioxopyrido[2,3-d]pyrimidines

✍ Scribed by René Rodríguez; Margarita Suárez; Estael Ochoa; Alhmed Morales; Leandro González; Nazario Martín; Margarita Quinteiro; Carlos Seoane; José L. Soto

Book ID: 112131423
Publisher: Journal of Heterocyclic Chemistry
Year: 1996
Tongue: English
Weight: 305 KB
Volume: 33
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570330108

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis and Theor

ChemInform Abstract: Synthesis and Theoretical Calculations of Novel 5-Aryl Substituted 2,4, 7-Trioxo- and 4,7-Dioxo-2-thioxopyrido(2,3-d)pyrimidines.

✍ R. RODRIGUEZ; M. SUAREZ; E. OCHOA; A. MORALES; L. GONZALEZ; N. MARTIN; M. QUINTE 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB

Synthesis and structural study of novel

Synthesis and structural study of novel 5-aryl substituted 2-amino-4,7-dioxopyrido[2,3-d]pyrimidines

✍ Rená Rodríguez; Margarita Suárez; Estael Ochoa; Beatriz Pita; Remberto Espinosa; 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 380 KB 👁 1 views

## Abstract The tide compounds 4a‐c have been prepared in a one‐step procedure from 2,4‐diamino‐6‐hydroxy‐pyrimidine (1) and the corresponding arylidene substituted Meldrum's acids 2a‐e in very good yields. Semiempirical theoretical calculations (AMI) reveal two favoured conformations (A and B) for

Synthesis of novel 2,3-substituted-2,4-d

Synthesis of novel 2,3-substituted-2,4-dihydro-pyrazolo[4,3-d]pyrimidine-5,7-diones

✍ Thomas Brady; Khang Vu; Jack R. Barber; Shi Chung Ng; Yuefen Zhou 📂 Article 📅 2009 🏛 Elsevier Science 🌐 French ⚖ 440 KB

Novel 2,3-substituted-2,4-dihydro-pyrazolo[4,3-d] pyrimidine-5,7-diones were successfully synthesized with moderate to good yields using a new synthetic approach. The structures of the regio-isomers in this series were determined by single crystal X-ray analysis and NMR spectra.

2-Alkyl(aryl)- and 2,7-Dimethyl-4-substi

2-Alkyl(aryl)- and 2,7-Dimethyl-4-substituted Aminopyrrolo [2,3-d] pyrimidines

✍ WEST, R. A.; BEAUCHAMP, L. 📂 Article 📅 1961 🏛 American Chemical Society 🌐 English ⚖ 418 KB

ChemInform Abstract: Synthesis and Struc

ChemInform Abstract: Synthesis and Structural Study of Novel 5-Aryl Substituted 2-Amino-4,7- dioxopyrido(2,3-d)pyrimidines.

✍ R. RODRIGUEZ; M. SUAREZ; E. OCHOA; B. PITA; R. ESPINOSA; N. MARTIN; M. QUINTEIRO 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 2 views

Synthesis of 1,2,3,4-Tetrahydro-2,4-diox

Synthesis of 1,2,3,4-Tetrahydro-2,4-dioxo-7- (2,4-dialkoxyphenyl)-5-substituted-phenyl-5H-pyrano-[2,3-d]-pyrimidines (III) and 3-(2,4-Dialkoxyphenyl)-5-substituted-phenylisoxazoles (V)

✍ C. S. Andotra; Jatinder Khajuria; Sukhbinder Kaur 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 24 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.