𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Crystal structure of 4,5-bis-phenyl-8a-phenyl-3,4,4a,5,6,8a-hexahydro-1H,8H-pyrimido[4.5-d]pyrimidine-2,7-dione

✍ Scribed by M. M. Kurbanova; A. V. Kurbanov; A. B. Novruzova; V. N. Khrustalev; A. M. Magerramov

Publisher
SP MAIK Nauka/Interperiodica
Year
2010
Tongue
English
Weight
146 KB
Volume
51
Category
Article
ISSN
0022-4766

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Crystal and Molecular Structure of 7-(4-
Crystal and Molecular Structure of 7-(4-chloro-phenyl)-8-phenyl-2,3-dihydro-imidazo[1,2-a]pyrimidin-5(8H)-on
✍ Hans Peter Weber; Trevor J. Petcher 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 German ⚖ 202 KB 👁 2 views

Bei der Kondensation von 4‐Chlorphenyl‐propiolsäuremethylester mit 2‐Anilino‐2‐imidazol entsteht die Titelverbindung, deren Struktur durch eine Röntgenstrukturanalyse bewiesen wurde. Die Kristalle gehören in die azentrische, orthorhombische Raumgruppe Pna2~1~, __a__ = 13,49, __b__ = 10,52 und __c__

9,9′-Thiobis-(1,2,3,4,7,8-hexahydro-7-me
9,9′-Thiobis-(1,2,3,4,7,8-hexahydro-7-methyl-6H-pyrimido[1,6-a]pyrimidine-6,8-dione)
✍ Ondrej Šimo; Alfonz Rybár; Juraj Alföldi; Vladimír Pätoprstý 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 292 KB

## Abstract The 6‐(3‐hydroxypropylamino)‐3‐methylpyrimidine‐2,4‐dione (1) did not afford the expected 6‐(3‐chloro‐propylamino)‐ derivative on reaction with thionyl chloride, but, instead, the pyrimidine rings were joined __via__ a sulfur bridge to give 9,9′‐thiobis(1,2,3,4,7,8‐hexahydro‐7‐melnyl‐6_

4-(o-Methoxy­phenyl)-1,3,4,4a,5,6,7,8a-o
4-(o-Methoxy­phenyl)-1,3,4,4a,5,6,7,8a-octa­hydro-2H-pyrano­[2,3-d]­pyrimidine-2-thione
✍ Yan, Lei ;Zhu, Yu-Lin ;Pan, Yuan-Jiang 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 193 KB

The title compound, C 14 H 18 N 2 O 2 S, which was obtained from an extended Biginelli reaction, contains a pyran ring with a chair conformation, a pyrimidine ring with a half-chair conformation and a benzene ring. The crystal structure is stabilized by an intermolecular hydrogen-bond network.