Cyano-substituted 5-thiabicyclo[2.1.0]pent-2-enes: reactions and relevance to cyanothiophene phototranspositions was written by Barltrop, John A.;Day, A. Colin;Irving, Edward. And the article was included in Journal of the Chemical Society, Chemical Communications in 1979.Quality Control of 3-Methylthiophene-2-carbonitrile This article mentions the following:
The title thiabicyclopentenes were detected by NMR as intermediates in the photorearrangements of cyanothiophenes. Thiabicyclopentene I was obtained (6%) on irradiation of 3-cyano-2-methyl- or -4-methylthiophene in cyclohexane at ∼34°. Aromatization and rearrangement by S walk of I, which occur photochem. and thermally, and its Diels-Alder reactions with furan and 2,5-diphenyl-3,4-benzofuran were studied. In the experiment, the researchers used many compounds, for example, 3-Methylthiophene-2-carbonitrile (cas: 55406-13-8Quality Control of 3-Methylthiophene-2-carbonitrile).
3-Methylthiophene-2-carbonitrile (cas: 55406-13-8) belongs to nitriles. Nitrile function is a very important functional group because it can be manipulated to other functional groups such as carboxylic acid by hydrolysis or amine by reduction, respectively. In addition, Nitriles can react with alkynes, which leads to an increase in carbon chain length (carbocyanation).Quality Control of 3-Methylthiophene-2-carbonitrile
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts