Straightforward microwave-assisted synthesis of 2-thiazolines using Lawesson's reagent under solvent-free conditions
作者:Julio A. Seijas、M. Pilar Vázquez-Tato、José Crecente-Campo
DOI:10.1016/j.tet.2008.07.027
日期:2008.9
2-Thiazolines are synthesized from carboxylic acids and 1,2-aminoalcohols in the presence of Lawesson's reagent under solventless conditions. The developed method is valid for either substituted or unsubstituted aminoalcohols and a wide variety of aromatic, heteroaromatic and aliphatic carboxylic acids; thus it constitutes a general synthetic method for these kinds of compounds. The role of Lawesson's
Cu(II) immobilized on Fe$_{3}$O$_{4}$@Agarose nanomagnetic catalyst functionalized with ethanolamine phosphate--salicylaldehyde Schiff base: a magnetically reusable nanocatalyst for preparation of 2-substituted imidazolines, oxazolines, and thiazolines
作者:Zeinab ZAREI、Batool AKHLAGHINIA
DOI:10.3906/kim-1704-53
日期:——
Herein we synthesized Cu(II) immobilized on Fe$_3}$O$_4}$ @Agarose functionalized with ethanolamine phosphate salicylaldehyde Schiff base (Fe$_3}$O$_4}$ @Agarose/SAEPH$_2}$ /Cu(II)) as a new and cost-effective nanomagnetic catalyst. The nanomagnetic catalyst was characterized by FT-IR, XRD, VSM, SEM-EDX, TEM, TGA, and ICP techniques and it was found that the particles were about 9-25 nm in size
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.