Copper-Mediated Selective Mono- and Sequential Organochalcogenation of C–H Bonds: Synthesis of Hybrid Unsymmetrical Aryl Ferrocene Chalcogenides
作者:Moh. Sattar、Krishna Patidar、Raviraj Ananda Thorat、Sangit Kumar
DOI:10.1021/acs.joc.9b00311
日期:2019.6.7
mono-organothiolation of the C–H bond in ferroceneamide has been developed using aryl/alkyl disulfide substrates. The sequential ferrocene C–H organochalcogenation (chalcogen = S, Se, and Te) has also been established for the synthesis of novel hybrid unsymmetrical aryl chalcogenides with the aid of a catalytic amount of Cu(OAc)2 under ambient reaction conditions. The developed protocol results in a broad functional
使用芳基/烷基二硫化物底物已开发出了一种由8-氨基喹啉定向的铜/ 1,10-菲咯啉介导的二茂铁酰胺中C–H键的选择性单有机硫代化。还建立了顺序二茂铁CH-H有机硫属化合物(硫属元素= S,Se和Te),用于借助催化量的Cu(OAc)2合成新型杂化不对称芳基硫属元素化物。在环境反应条件下。制定的协议导致宽泛的官能团耐受性,以允许将烷基,芳基,杂芳基,溴,氯和硝基的二有机二卤化二氰化物用作偶联伙伴。此外,在C–H有机硫属元素化后,可轻松除去8-氨基喹啉引导基团,以提供醛官能团。对铜介导的选择性单有机硫醇化反应的机理了解表明,在极性较小的溶剂乙腈中,刚性双配位的1,10-菲咯啉配体和来自Cu(I)的新生成的铜(II)对于选择性单C至关重要二茂铁酰胺的-H功能化。