COA of Formula: C11H13ClO2On May 31, 1988, Uscumlic, G. S.; Krstic, V. V.; Muskatirovic, M. D. published an article in Journal of Molecular Structure. The article was 《Correlation of ultraviolet absorption frequences of cis- and trans-substituted cinnamic acids with Hammett substituent constants》. The article mentions the following:
The UV absorption spectra of cis- and trans-3- and 4-substituted cinnamic acids have been determined Examination of the spectra shows that there is a fair linear relation between the positions of the absorption bands for the electronic transitions of the carbonyl group and the Hammett substituent constants The plot of the λmax values of the cinnamic acids vs. the rate constants for the corresponding acids with diazodiphenylmethane (DDM) in ethanol gave a fair correlations. This relation was discussed in view of the proportionality of the energy of activation for the reaction of these acids with DDM in ethanol and the energy for the electronic transitions in the carbonyl group under the influence of UV radiation. In the experiment, the researchers used many compounds, for example, Ethyl 3-(4-chlorophenyl)propanoate(cas: 7116-36-1COA of Formula: C11H13ClO2)
Ethyl 3-(4-chlorophenyl)propanoate(cas: 7116-36-1) belongs to organochlorine compounds. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.COA of Formula: C11H13ClO2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics