In 2017,Pagire, Santosh K.; Kreitmeier, Peter; Reiser, Oliver published 《Visible-Light-Promoted Generation of α-Ketoradicals from Vinyl-bromides and Molecular Oxygen: Synthesis of Indenones and Dihydroindeno[1,2-c]chromenes》.Angewandte Chemie, International Edition published the findings.Related Products of 128071-75-0 The information in the text is summarized as follows:
Ortho-alkynylated α-bromocinnamates can be converted by a visible-light-mediated photocascade reaction with mol. oxygen into either indenones or dihydroindeno[1,2-c]chromenes. The one-step process features key photochem. steps, i.e., the initial activation of vinyl bromides through energy transfer to give α-ketoradicals in a reaction with mol. oxygen, followed by α-oxidation of an arene moiety by 6-π electrocyclization and subsequent hydroxylation by an electron-transfer process from the same photocatalyst leads to the dihydroindeno[1,2-c]chromenes. In the experiment, the researchers used 2-Bromonicotinaldehyde(cas: 128071-75-0Related Products of 128071-75-0)
2-Bromonicotinaldehyde(cas: 128071-75-0) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.Related Products of 128071-75-0