A FACILE SYNTHESIS OF β-OXOTHIOLCARBOXYLATES FROM α-OXOKETENEDITHIOACETALS*
摘要:
alpha -Oxoketenedithioacetals and alkenoyl ketenedithioacetals underwent facile, boron trifluoride etherate assisted partial hydrolysis in dioxane to afford beta -oxothiolcarboxylates and gamma,delta -unsaturated beta -oxothiolcarboxylates, respectively, in good yields.
A new series of aryl substituted ketene dithioacetals 6a–h was synthesized and evaluated for their in vitro and in vivo antileishmanial activity against Leishmania donovani. Two compounds exhibited significant in vitro activity against intracellular amastigotes of L. donovani with IC50 values 3.56 and 5.12 μM and were found promising as compared with reference drug, miltefosine. On the basis of good
Reformatskii reaction on .alpha.-oxo ketene dithioacetals: synthesis of substituted and fused ethyl 2-hydroxy-6-(methylthio)benzoates, 6-(methylthio)pyran-2-ones, and 6-(methylthio)-2(1H)pyridone derivatives
A FACILE SYNTHESIS OF β-OXOTHIOLCARBOXYLATES FROM α-OXOKETENEDITHIOACETALS<sup>*</sup>
作者:Satheesh K. Nair、C. V. Asokan
DOI:10.1081/scc-100104056
日期:2001.1
alpha -Oxoketenedithioacetals and alkenoyl ketenedithioacetals underwent facile, boron trifluoride etherate assisted partial hydrolysis in dioxane to afford beta -oxothiolcarboxylates and gamma,delta -unsaturated beta -oxothiolcarboxylates, respectively, in good yields.