Photoelectrochemical cross-dehydrogenative coupling of benzothiazoles with strong aliphatic C–H bonds
作者:Luca Capaldo、Lorenzo L. Quadri、Daniele Merli、Davide Ravelli
DOI:10.1039/d1cc01012c
日期:——
cross-dehydrogenative coupling of unactivated aliphatic hydrogen donors (e.g. alkanes) with benzothiazoles is reported. We used tetrabutylammonium decatungstate as the photocatalyst to activate strong C(sp3)–H bonds in the chosen substrates, while electrochemistry scavenged the extra electrons.
Cyanide as a powerful catalyst for facile synthesis of benzofused heteroaromatic compounds via aerobic oxidation
作者:Yeon-Ho Cho、Chun-Young Lee、Cheol-Hong Cheon
DOI:10.1016/j.tet.2013.05.138
日期:2013.8
Highly efficientsynthesis of benzofused heteroaromatic compounds via aerobicoxidationcatalyzed by cyanide anion has been developed. The Schiff bases derived from 2-aminophenol and aldehydes provided the corresponding benzoxazoles in high yields in the presence of a catalytic amount of cyanide in an open flask under ambient conditions without the use of any external metal co-oxidants and bases. Furthermore
Aspects of green chemistry toward synthesis of benzazoles and quinoxalines: Bovine serum albumin-water system for C–N/C–S bond formation
作者:Saima、Aditya G. Lavekar、Danish Equbal、Arun K. Sinha
DOI:10.1080/00397911.2022.2053160
日期:2022.3.19
important six membered quinoxalines, 2-phenylimidazo [1,2-a]pyridine and benzo[d]imidazo[2,1-b]thiazoles. Moreover, the present biocatalytic protocol for the synthesis of such five- and six-membered heterocyclic compounds also have the added benefits of high atom economy, operational simplicity, excellent yields, recyclability (up to four cycles), and gram scalability.