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6-Phenyl-4,5-di­hydro­pyridazin-3(2H)-one

✍ Scribed by Abourichaa, Said ;Benchat, Noureddine ;Anaflous, Abderahmane ;Melhaoui, Amina ;Ben-Hadda, Taibi ;Oussaid, Boualem ;El Bali, Brahim ;Bolte, Michael

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
175 KB
Volume
59
Category
Article
ISSN
1600-5368

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📜 SIMILAR VOLUMES

(R)-(–)-6-(4-Amino­phen­yl)-5-methyl-4,5
(R)-(–)-6-(4-Amino­phen­yl)-5-methyl-4,5-dihydro­pyridazin-3(2H)-one
✍ Zhang, Chun-Tao ;Wu, Jie-Hua ;Zhou, Li-Na ;Wang, Yong-Li ;Wang, Jing-Kang 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 178 KB

The title compound, C~11~H~13~N~3~O, is a key intermediate in the synthesis of cardiotonic agents. The asymmetric unit consists of two molecules of the same enantiomer and the crystal packing is stabilized by intermolecular N—H...O hydrogen bonds.

2,3,4,6-Tetra­phenyl-2H-pyrazolo­[3,4-d]
2,3,4,6-Tetra­phenyl-2H-pyrazolo­[3,4-d]­pyridazin-7(6H)-one
✍ Dinçer, Muharrem ;Özdemir, Namık ;Yıldırım, İsmail ;Demir, Elif ;Akçamur, Yunus 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 262 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê R factor = 0.050 wR factor = 0.089 Data-to-parameter ratio = 12.8 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

2-Amino-4-phenyl-5,6-di­hydro­benzo­[h]­
2-Amino-4-phenyl-5,6-di­hydro­benzo­[h]­quinazoline
✍ Wang, Xiangshan ;Shi, Daqing ;Tu, Shujiang ;Yu, Kaibei 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 142 KB

Single-crystal X-ray study T = 296 K Mean '(C±C) = 0.002 A Ê R factor = 0.038 wR factor = 0.102 Data-to-parameter ratio = 12.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

3-(4-Chloro­phenyl)-3,4-di­hydro­quinazo
3-(4-Chloro­phenyl)-3,4-di­hydro­quinazolin-2(1H)-one
✍ Shi, Daqing ;Li, Zhengyi ;Shi, Chunling ;Wang, Xiangshan ;Zhang, Yong 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 294 KB

The title compound, C 14 H 11 ClN 2 O, was synthesized by the reaction of N-(4-chlorophenyl)-2-nitrobenzylamine with triphosgene, induced by a low-valent titanium reagent (TiCl 4 /Zn). The dihydroquinazoline ring adopts a skew-boat conformation.