Acylamino-substituted isoxazole or isothiazole derivatives, their
摘要:
公式 I 的酰胺基取代的异噁唑或异硫唑衍生物,其中 X 为氧或硫;R1 为未取代或取代的烷基,烯基,炔基,环烷基,环烯基或苯基;R2 为CN,CONH2,CSNH2或卤代烷基;R3 为氢或未取代或取代的烷基或环烷基;R4 为烷氧基,未取代或取代的烷基,环烯基,环烷基,烯基或炔基,未取代或取代的5元或6元杂环基或未取代或取代的苯基;卤代烷基,烷氧基,卤代烷氧基,烷基硫基和/或卤代烷基硫基,以及公式 I 的农业上有用的盐,作为除草剂。
Hydrogen Peroxide-Mediated Rapid Room Temperature Metal-Free C(sp<sup>2</sup>)-H Thiocyanation of Amino Pyrazoles, Amino Uracils, and Enamines
作者:Danish Ali、Anoop Kumar Panday、Lokman H. Choudhury
DOI:10.1021/acs.joc.0c01738
日期:2020.11.6
aminopyrazoles, aminoisoxazole, aminoisothiazole, amino uracils, and aliphatic enamines has been developed in an aqueous medium using hydrogenperoxide as a benign oxidant and ammonium thiocyanate as a thiocyanating agent. On the otherhand, the reaction of hydrogenperoxide and ammonium thiocyanate followed by one-pot addition of NaOH provides the corresponding disulfides in the case of amino azoles, and