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Updated: Jun 1, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
(E)-3-(3-Bromo-phen-yl)-1-(4-methyl-phenyl)prop-2-en-1-one
Researchers synthesized a novel brominated organic compound, C(16)H(13)BrO, using a base-catalyzed reaction. The study details its E-configured propenone unit, aromatic ring orientation, and crystal structure stabilized by bromine interactions.
Area of Science:
- Organic Chemistry
- Crystallography
- Materials Science
Background:
- Chalcones and their derivatives are important organic compounds with diverse applications.
- Understanding the structure-property relationships of novel chalcone derivatives is crucial for developing new materials.
Purpose of the Study:
- To synthesize and characterize a novel brominated chalcone derivative.
- To elucidate the molecular structure and crystal packing of the synthesized compound.
Main Methods:
- Synthesis via Claisen-Schmidt condensation of 3-bromo-benzaldehyde and 4-methyl-acetophenone using potassium hydroxide (KOH).
- Single-crystal X-ray diffraction analysis to determine the molecular and crystal structure.
Main Results:
- The compound C(16)H(13)BrO was successfully synthesized.
- The molecule exhibits an E configuration around the C=C double bond.
- The crystal structure is characterized by a dihedral angle of 46.91° between aromatic rings and stabilized by intermolecular Br⋯Br interactions (3.4549 Å).
Conclusions:
- The study successfully synthesized and characterized a new brominated chalcone.
- The crystal structure reveals specific intermolecular interactions that influence solid-state packing.
- This work contributes to the understanding of structure-property relationships in brominated organic compounds.
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Structure and Nomenclature of Alcohols and Phenols
Alcohols are one of the most important functional groups in organic chemistry. The name of alcohol comes from the hydrocarbon from which it is derived. Alcohols are organic molecules containing the functional hydroxyl or –OH group directly bonded to carbon. Phenols have an OH group directly attached to a benzene ring. While alcohols are colorless, phenol is a white crystalline compound with a characteristic "hospital smell" odor.
As with other organic compounds, alcohols and phenols...

