Regiodirected synthesis of hydroazolic compounds with the use of thiosemicarbazide
摘要:
Interaction of alpha,beta-unsaturated ketones of furan series with thiosemicarbazide under basic catalysis leads to 3-furyl-2-thiocarbamoylpyrazolines since nitrous nucleophilic centre of a reagent is activated, whereas the products of intermolecular cyclization of thiosemicarbazones under conditions of acid activation of sulfureous nucleophile are spirocyclic furylmethylene-1,3,4-thiadiazolines.
Regiodirected synthesis of hydroazolic compounds with the use of thiosemicarbazide
作者:Aleksandr A. Anis’kov、Anton A. Sazonov、Irina N. Klochkova
DOI:10.1016/j.mencom.2009.01.021
日期:2009.1
Interaction of alpha,beta-unsaturated ketones of furan series with thiosemicarbazide under basic catalysis leads to 3-furyl-2-thiocarbamoylpyrazolines since nitrous nucleophilic centre of a reagent is activated, whereas the products of intermolecular cyclization of thiosemicarbazones under conditions of acid activation of sulfureous nucleophile are spirocyclic furylmethylene-1,3,4-thiadiazolines.