versatile 1,4-diketones are smoothly generated under metal-free and external-reductant-free electrolytic conditions. Moreover, the tolerance of various functional groups and decagram-scale experiments have shown the practicability and potential applications of this methodology. Moreover, a range of heterocyclic compounds were easily prepared through follow-up procedures of 1,4-diketones.
已经报道了在未分割的电池中有效氢化不饱和 C C 键的简单电化学方案。在无金属和无外部还原剂的电解条件下顺利生成一系列多功能的1,4-二酮。此外,各种官能团的耐受性和十克规模的实验表明了该方法的实用性和潜在应用。此外,通过1,4-二酮的后续程序可以轻松制备一系列杂环化合物。
Synthesis and antifungal activity of novel oxazolidin-2-one-linked 1,2,3-triazole derivatives
作者:Alejandra Ramírez-Villalva、Davir González-Calderón、Roxana I. Rojas-García、Carlos González-Romero、Joaquín Tamaríz-Mascarúa、Macario Morales-Rodríguez、Nieves Zavala-Segovia、Aydeé Fuentes-Benítes
DOI:10.1039/c7md00442g
日期:——
Novel oxazolidin-2-one-linked 1,2,3-triazolederivatives (4a–k) were synthesized by straightforward and versatile azide–enolate (3 + 2) cycloaddition. The series of compounds was screened for antifungal activity against four filamentous fungi as well as six yeast species of Candida spp. According to their efficiency and breadth of scope, they can be ordered as 4k > 4d > 4h > 4a, especially in relation
Synthesis of β- and γ-hydroxy sulfones by regioselective opening of β,γ-epoxy sulfones
作者:Carmen Nájera、José Miguel Sansano
DOI:10.1016/s0040-4020(01)90534-4
日期:1990.1
sulfones react regio-selectively with organomagnesium compounds in the presence or not of catalytic amounts of copper(I) bromide to afford β-hydroxy sulfones 2 or γ-tosylated allylic alcoholates 5 respectively. The Michael type addition of Grignard reagents to intermediates 5 in the presence of catalytic amount of copper(l) bromide yields γ-hydroxy sulfones 6. The PCC oxidation of β- and γ-hydroxy sulfones