Related Experiment Video
Updated: May 7, 2026
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
2-[1-(4-Bromo-phen-yl)-3-hy-droxy-3-(4-meth-oxy-phen-yl)prop-yl]cyclo-hexa-nol
Ismail Celik1, Mehmet Akkurt, Hayreddin Gezegen
1Department of Physics, Faculty of Sciences, Cumhuriyet University, 58140 Sivas, Turkey.
Abstract:
In the title compound, C22H27BrO3, the cyclo-hexane ring adopts a chair conformation. The dihedral angle between the benzene rings is 41.9 (4)°. In the crystal, mol-ecules are linked by O-H⋯O and C-H⋯O hydrogen bonds, forming a three-dimensional network. In addition, π-π stacking inter-actions [centroid-centroid distance = 3.953 (6) Å] between the benzene rings of the meth-oxy-benzene groups occur.
Related Concept Videos
Formation of Halohydrin from Alkenes
Halogenation of Alkenes
Consider the bromination of cyclopentene. Molecular bromine is polarized in the proximity of the π electrons of cyclopentene. An electrophilic bromine atom adds across the double bond, forming a cyclic bromonium ion intermediate.
Acidity and Basicity of Alcohols and Phenols
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...
Cycloalkanes
The IUPAC nomenclature of cycloalkanes follows similar rules that apply to...
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group with both...

