Generation properties of 3-cyanocoumarins was written by Loboda, L. I.;Sokolova, I. V.;Degtyarenko, K. M.;Il’chenko, A. Ya.;Kropachev, A. V.. And the article was included in Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika in 1988.Quality Control of 7-(Diethylamino)-2-oxo-2H-chromene-3-carbonitrile This article mentions the following:
The influence was investigated of 3-cyano substitution on the spectral-luminescent and generating properties of hydroxy- and diethylaminocoumarins. In both classes of coumarins, the CN-group decreases the region of rearrangement of the maximum of the generation wavelength: in the aminocoumarins, owing to a decrease in intermol. interactions with the solvents; and in the hydroxycoumarins, owing to a shift in the equilibrium of the protolytic reaction in the direction of the anionic form. As a result, the efficiency of the generation of the anionic form of the 3-CN-hydroxycoumarins increases. The generating capability of the aminocoumarins during a given substitution decreases, and the probability of forming nonplanar conformations of the mol. decreases. In the experiment, the researchers used many compounds, for example, 7-(Diethylamino)-2-oxo-2H-chromene-3-carbonitrile (cas: 51473-74-6Quality Control of 7-(Diethylamino)-2-oxo-2H-chromene-3-carbonitrile).
7-(Diethylamino)-2-oxo-2H-chromene-3-carbonitrile (cas: 51473-74-6) belongs to nitriles. Trimerization of aromatic nitriles requires harsh reaction conditions, high temperatures, long reaction times, and pressure. Asymmetric bioreduction of nitriles is an attractive route to produce optically active nitriles as current metal-catalyzed hydrogenations tend to have low reactivity.Quality Control of 7-(Diethylamino)-2-oxo-2H-chromene-3-carbonitrile
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts