NMR investigation into inter- and intramolecular interactions in substituted trifluoromethylphenylisocyanate, fluorophenylisocyanate, fluoroaniline, and fluoronitrobenzene was written by Kosfeld, R.;Henke, L.. And the article was included in Organic Magnetic Resonance in 1976.Application of 60221-81-0 This article mentions the following:
The effects of temperature and solvent (CCl4) concentration on the chem. shifts of 1H and F signal of the title compounds (I-IV, resp.) were investigated. In ortho substituted I the temperature effect on the F chem. shift arose from intramol. interaction of the CF3 group with the ortho substituent; rising temperature led to an increase in chem. shift. The temperature dependence of the electron distribution of meta and para substituted I was attributed to intermol. interactions; rising temperature thus led to a decrease in chem. shift. Protons showed a temperature dependence of the chem. shifts due to Van der Waals effects; increasing the amount of CCl4 led to a weakening of the anisotropy effect and an increase in the chem. shifts of both F and 1H signals. In the experiment, the researchers used many compounds, for example, 1-Fluoro-3-isocyanato-2-methylbenzene (cas: 60221-81-0Application of 60221-81-0).
1-Fluoro-3-isocyanato-2-methylbenzene (cas: 60221-81-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application of 60221-81-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics