Related Experiment Video
Updated: Jun 25, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
Anomeric effect for a 2,5,7-triazabicyclo[2.2.1]heptane derivative
Amir Taheri1, Sayed Mojtaba Moosavi
1Department of Chemistry, Imam Hossein University, Tehran, Iran. amir.tahery1@gmail.com
Abstract:
A new member of the polyazapolycyclic family of compounds, namely N(3),N(6),2,5,7-pentaphenyl-2,5,7-triazabicyclo[2.2.1]heptane-3,6-diamine xylene solvate, C(34)H(31)N(5).C(8)H(10), was synthesized for the first time and the crystal structure is reported. There are no hydrogen bonds joining the molecules. All four chiral C atoms have the same absolute configurations. With regard to the four N-C-N groups, anomeric effects are observed to cause a reduction of C-N bond length and N-atom pyramidality.
More Related Videos
07:56Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyl(tropone)iron
Published on: August 12, 2019
10:17Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
Related Concept Videos
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group with both...
Aromatic Hydrocarbon Anions: Structural Overview
Due to the absence of continuous overlap of p...
Nomenclature of Aryl and Heterocyclic Amines
Stereoisomerism of Cyclic Compounds
Disubstituted Cyclohexanes: cis-trans Isomerism
In cyclohexane, the substituents can occupy different positions generating distinct isomers.
Criteria for Aromaticity and the Hückel 4n + 2 Rule
For the first time, Eric Hückel, a German chemical physicist, derived a set of structural features for a compound to be classified as aromatic. This is now known as Hückel’s rule or the 4n + 2 rule.