No abstract

1,3,5-Triazinane-2,4-ditionas foram sintetizadas eficientemente via condensação de 2 equiv. de 1-aril-tiouréa com 1 equiv. de ácidos carboxílicos alifáticos usando cloreto férrico hexahidratado como catalisador. Este protocolo tem as vantagens de alto rendimento, condições brandas e procedimento simples. 1,3,5-Triazinane-2,4-dithiones were efficiently synthesized via condensation of 2 equiv. of 1-arylthioureas with 1 equiv. of aliphatic carboxylic acids using ferric chloride hexahydrate as a catalyst. This protocol has the advantages of high yield, mild condition and simple procedure.

The efficient and environmentally friendly cyanoaroylation of imines bearing a thiazole ring via a one-pot three-component condensation of N-arylidenethiazol-2-amines, aroyl chlorides and potassium hexacyanoferrate(II) is described. This protocol has the advantages of using an eco-friendly cyanide source, a simple work-up procedure and affords high yields of products.

An efficient procedure for the synthesis of 2-(3,5-diaryl-4,5-dihydropyrazol-1-yl)-1,3,4-thiadiazoles via one-pot three-component condensation of 1-(1,3,4-thiadiazol-2-yl)hydrazines, acetophenones, and aromatic aldehydes is described. This protocol has advantages of mild conditions, high yield, and simple workup procedure.

Direct Synthesis of 2,3-Diaryloxirane-2,3-dicarbonitriles from Aroyl Chlorides Using Potassium Hexacyanoferrate(II) as an Eco-Friendly Cyanide Source. -The important synthetic intermediates can be prepared within a relatively short time. -(LI*, Z.; XU, J.; NIU, P.; LIU, C.; YANG, J.; Tetrahedron 68 (2012) 43, 8880-8883, http://dx.