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Prop-2-ynyl 3-(3,4-di­hydroxy­phenyl)­prop-2-enoate monohydrate

✍ Scribed by Xia, Chun-Nian ;Zhou, Wei ;Hu, Wei-Xiao

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

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✦ Synopsis

Crystals of the title compound, C 12 H 10 O 4 ÁH 2 O, were obtained from the Knoevenagel condensation reaction of 3,4-dihydroxybenzaldehyde and monoprop-2-ynyl malonate. The almost planar molecule is the E isomer. There are intermolecular O-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds andinteractions, which contribute to the formation of the crystal structure.

📜 SIMILAR VOLUMES

Propyl 3-(3,4-dihydroxyphenyl)prop-2-eno
Propyl 3-(3,4-dihydroxyphenyl)prop-2-enoate
✍ Xia, Chun-Nian ;Hu, Wei-Xiao ;Zhou, Wei 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 635 KB

The title compound, C 12 H 14 O 4 , was prepared from the condensation reaction of 3,4-dihydroxybenzaldehyde, Meldrum's acid and propan-1-ol. The acyclic double bond is E configured. Intra-and intermolecular hydrogen bonds stabilize the molecular conformation and the crystal structure.

tert-Butyl 3-(3,4-dihydroxy­phen­yl)prop
tert-Butyl 3-(3,4-dihydroxy­phen­yl)prop-2-enoate
✍ Xia, Chun-Nian ;Hu, Wei-Xiao ;Zhou, Wei 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 112 KB

The molecule of the title compound, C 13 H 16 O 4 , adopts an E configuration, the carboxyl group and benzene ring being located on opposite sides of the C C bond. Intermolecular O-HÁ Á ÁO hydrogen bonding helps to stabilize the crystal structure.

Penta­fluoro­phenyl 3-phenyl­prop-2-enoa
Penta­fluoro­phenyl 3-phenyl­prop-2-enoate
✍ Andrade, L.C.R. ;Paixão, J. A. ;de Almeida, M.J.M. ;Tavares da Silva, E. J. ;Fer 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 131 KB

In the title compound, C 15 H 7 F 5 O 2 , an intramolecular C-HÁ Á ÁO hydrogen bond induces coplanarity of the central chain and the phenyl ring. An intermolecular C-HÁ Á ÁO hydrogen bond leads to the formation of a dimer.