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4-[(4-Hydr­oxy-3-methoxy­benzyl­idene)amino]-1,5-dimeth­yl-2-phenyl­pyrazolidin-3-one

✍ Scribed by Diao, Chun-Hua ;Fan, Zhi ;Yu, Ming ;Chen, Xin ;Jing, Zuo-Liang ;Deng, Qi-Liang

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
140 KB
Volume
61
Category
Article
ISSN
1600-5368

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📜 SIMILAR VOLUMES

4-[(4-Hydr­oxy-3-methoxy­benzyl­idene)am
4-[(4-Hydr­oxy-3-methoxy­benzyl­idene)amino]-1,5-dimethyl-2-phenyl-1,2-dihydro­pyrazol-3-one
✍ Wen, Puhong 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 245 KB

In the crystal structure of the title compound, C 19 H 19 N 3 O 3 , the benzene ring substituted by hydroxy and methoxy groups is essentially coplanar with the pyrazoline ring [dihedral angle = 12.9 (2) ], whereas the phenyl ring bonded directly to the pyrazoline ring forms a dihedral angle of 50.4

3,4-Bis(2-hydr­oxy-3-methoxy­benzyl­iden
3,4-Bis(2-hydr­oxy-3-methoxy­benzyl­idene­amino)pyridine
✍ Bi, Wei-Yu ;Lü, Xing-Qiang ;Cai, Wen-Li ;Song, Ji-Rong ;Ng, Seik Weng 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 139 KB

In the title molecule, C 21 H 19 N 3 O 4 , the benzene rings of the two ortho 2-hydroxy-3-methoxybenzylideneamine substituents are twisted with respect to the central pyridine ring by 29.4 (1) and 41.4 (1) .

5-Hydr­oxy-3,7-dimeth­oxy-2-phenyl-4H-1-
5-Hydr­oxy-3,7-dimeth­oxy-2-phenyl-4H-1-benzopyran-4-one
✍ Fun, Hoong-Kun ;Razak, Ibrahim Abdul ;Boonnak, Nawong ;Laphookhieo, Surat ;Chant 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 199 KB

The title compound, C 17 H 14 O 5 , a flavone, was isolated from the rhizomes of Kaempferia parviflora. There are two crystallographically independent molecules in the asymmetric unit. The molecular structure is stabilized by intramolecular O-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds. C-HÁ Á ÁO intermole