Regioselective transition metal- and halogen-free direct dithiolation at C(sp<sup>3</sup>)–H of nitrotoluenes with diaryl disulfides
作者:Shailesh Kumar、Rahul Kadu、Sangit Kumar
DOI:10.1039/c6ob01856d
日期:——
tert-butoxide-mediated regioselective direct C–S bond formation at the C(sp3)–H position of nitrotoluenes with disulfides in DMSO at room temperature. The developed reaction generated, in good yields, various dithioacetals having OMe, halogen, and NH2 functionalities at various positions of the arene rings of the disulfides. Interestingly, in the absence of nitrotoluene, diaryl disulfides and diselenides underwent one-carbon
在这里,我们描述了室温下在DMSO中硝基甲苯与二硫键的C(sp 3)–H位置形成叔丁醇钾介导的区域选择性直接C–S键的形成。进行的反应以高收率产生了在二硫化物的芳环的各个位置具有OMe,卤素和NH 2官能度的各种二硫缩醛。有趣的是,在不存在硝基甲苯的情况下,对二芳基二硫化物和二硒化物进行一碳同系形成二硫缩醛和二硒缩醛。将合成的二硫缩醛转化为4-硝基苯甲醛和7-(双(苯硫基)甲基)-1 H-吲哚。