The author of 《Visible-Light-Induced Tandem Cyclization of Alkynoates and Phenylacetylenes to Naphtho[2,1-c]coumarins》 were Wang, Zhihui; Wang, Lei; Wang, Zhiming; Li, Pinhua. And the article was published in Asian Journal of Organic Chemistry in 2019. SDS of cas: 2510-22-7 The author mentioned the following in the article:
An efficient visible-light-induced tandem cyclization of alkynoates and phenylacetylenes to naphtho[2,1-c]coumarins was developed. The reaction could be carried out at room temperature under an air atm. in one pot. Preliminary mechanistic investigations indicated that the present reaction was involved in a free-radical process. The results came from multiple reactions, including the reaction of 4-Ethynylpyridine(cas: 2510-22-7SDS of cas: 2510-22-7)
4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. SDS of cas: 2510-22-7