So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.McFadden, T. M. C.; Platakyte, R.; Stocka, J.; Ceponkus, J.; Aleksa, V.; Carrigan-Broda, T.; Sablinskas, V.; Rodziewicz, P.; Guirgis, G. A. researched the compound: 1,5-Dibromopentane( cas:111-24-0 ).HPLC of Formula: 111-24-0.They published the article 《Experimental (Raman and IR) and computational (DFT, MP2) studies of conformational diversity of 1-chloromethyl-1-fluorosilacyclohexane》 about this compound( cas:111-24-0 ) in Journal of Molecular Structure. Keywords: chloromethyl fluorosilacyclohexane conformation. We’ll tell you more about this compound (cas:111-24-0).
Since 1-chloromethyl-1-fluorosilacyclohexane is a newly synthesized mol. compound its structural parameters and conformational stability is unknown. Raman and IR vibrational spectroscopy methods were employed for anal. of this mol. IR spectra were recorded for both gas phase and liquid sample, whereas the Raman experiments were performed in the liquid state. Addnl., low temperature matrix isolation IR spectra were recorded after isolating the mol. in argon and nitrogen matrixes. For the assignment of the exptl. spectral bands, theor. DFT/B3LYP/aug-cc-pVDZ and MP2/aug-cc-pVDZ calculations were performed. From the calculations it was found that 1-chloromethyl-1-fluorosilacyclohexane may exist in twelve different conformational forms out of which the chair axial trans conformer is the most stable form. However, there are three more chair type conformers – equatorial trans, equatorial gauche and axial gauche that are stable enough to be observed in the exptl. spectra.
After consulting a lot of data, we found that this compound(111-24-0)HPLC of Formula: 111-24-0 can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis