𝔖 Bobbio Scriptorium
✦   LIBER   ✦

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.

✍ Scribed by R. RODRIGUEZ; M. SUAREZ; E. OCHOA; A. MORALES; L. GONZALEZ; N. MARTIN; M. QUINTEIRO; C. SEOANE; J. L. SOTO

Book ID
112035047
Publisher
John Wiley and Sons
Year
2010
Weight
29 KB
Volume
27
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

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.