71609-39-7Relevant academic research and scientific papers
Semi-empirical computation on mechanism of imidazolines and benzimidazoles synthesis and their QSAR studies
Hazarika, Swapnali,Konwar, Dilip,Bora, Manas Jyoti
, p. 5073 - 5078 (2015/01/09)
A green, mild and anaerobic synthesis of imidazolines and benzimidazoles from aldehydes and diamines using I2/KI/K2CO3/H2O system has been investigated by semi-empirical methods. The observed efficient direction of the above synthesis has been modeled from a comparison of the energies of four possible transition states arising from mono and di additions of iodines in the configured molecules. In the reaction I1 B is the most favorable transition state [TS] which is shown to be 20 Kcal/mol by PM3 analyses. The resulting trends of relative transition states energies are in excellent agreement with the experimental observations. Also, the bond order, bond length, heat of formation is in good agreement to the formation of product B. In order to establish the suitable mechanism of the reaction a quantitative structure activity relationship analysis has been made using hydrophobicity as the molecular descriptor. In this analysis the values of refractivity, polarizability, hydration energy, electron affinity, ionization potential and dipole moment of the compounds have been correlated with their hydrophobicity which has been taken as the molecular property.
An efficient and one-pot synthesis of imidazolines and benzimidazoles via anaerobic oxidation of carbon-nitrogen bonds in water
Gogoi, Pranjal,Konwar, Dilip
, p. 79 - 82 (2007/10/03)
The system, I2/KI/K2CO3/H2O, oxidizes carbon-nitrogen bonds for the synthesis of imidazolines and benzimidazoles from aldehydes and diamines under anaerobic conditions in water at 90°C with excellent yields. The process is green, mild and inexpensive.
A novel synthetic method for 2-arylmethyl substituted imidazolines and imidazoles from 2-aryl-1,1-dibromoethenes
Huh, Dal Ho,Ryu, Hoejin,Kim, Young Gyu
, p. 9857 - 9862 (2007/10/03)
Various 2-arylmethylimidazolines were prepared by treating readily available 2-aryl-1,1-dibromoethenes with ethylenediamine under mild conditions and further converted into the corresponding imidazoles smoothly with Swern oxidation. Graphical Abstract
