Synthèse, activités anti-parasitaire et anti-fongique d'arylalkyl- et d'arylvinylthiazolines
摘要:
Twenty-seven arylalkyl- or arylvinylthiazolines were synthesized and tested in vitro against three genera of nematodes, various yeasts and opportunistic fungi. Vinyl compounds seem to have an interesting filaricidal activity against Molinema dessetae and anti-fungal activity against yeasts.
Condensation of the triisobutylaluminum complex of cysteamine HCl with a variety of carboxylic esters furnishes thiazolines in onestep. This new method has been applied to chiral α-aminoesters to give α-amino thiazolines of high optical purity, yet N-benzyl protection of the amine is required.
Tandem reactions of nitriles with 2-aminoethanethiolhydrochloride or amino alcohols in the presence of a catalytic amount of cupric methacrylate (CuII2L4, L = methacrylate) were employed to prepare 2-thiazolines and 2-oxazolines under mild reaction conditions. The synthetic procedure showed high selectivity for the synthesis of mono- and bis-thiazolines and oxazolines, and a variety of 2-thiazolines
A straightforward metal-free synthesis of 2-substituted thiazolines in air
作者:Michael Trose、Faïma Lazreg、Mathieu Lesieur、Catherine S. J. Cazin
DOI:10.1039/c5gc00286a
日期:——
A range of 2-substituted 4,5-dihydrothiazoles was easily synthesised from the reaction of nitriles with cysteamine in the presence of a catalytic amount of NaOH.