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2,3-Dihydro-7-hydr­oxy-3-[(4-methoxy­phen­yl)methyl­ene]-4H-1-benzopyran-4-one

✍ Scribed by Boonsri, Sompong ;Chantrapromma, Suchada ;Fun, Hoong-Kun ;Karalai, Chatchanok ;Kanjana-opas, Akkharawit ;Anjum, Shazia

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

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📜 SIMILAR VOLUMES

5-Hydr­oxy-7-meth­oxy-2-(4-methoxy­phen­
5-Hydr­oxy-7-meth­oxy-2-(4-methoxy­phen­yl)-4H-1-benzopyran-4-one
✍ Teh, Jeannie Bee-Jan ;Fun, Hoong-Kun ;Razak, Ibrahim Abdul ;Chantrapromma, Sucha 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 300 KB

The title compound, C 17 H 14 O 5 , a flavone, was isolated from the rhizomes of Kaempferia parviflora. The benzopyran-4-one ring system and the methoxyphenyl substituent are approximately coplanar. The molecules are linked via intermolecular C-HÁ Á ÁO hydrogen bonds to form chains.

2,3-Dihydro-7,8-dihydr­oxy-3-[(4-methoxy
2,3-Dihydro-7,8-dihydr­oxy-3-[(4-methoxy­phenyl)methyl­ene]-4H-1-benzopyran-4-one
✍ Chantrapromma, Suchada ;Boonsri, Sompong ;Fun, Hoong-Kun ;Anjum, Shazia ;Kanjana 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 241 KB

The title compound, also known as intricatinol, C~17~H~14~O~5~, is a homoisoflavanoid that was isolated for the first time from the twigs and stems of __Caesalpinia digyna__ Rottler. The pyran ring is in an envelope form. O—H...O intramolecular hydrogen bonds are observed. Symmetry-related molecules