An efficient synthesis of β-methylsulfonylated N-heterocycles via FeCl3-catalyzed C(sp3)–H dehydrogenation and C(sp2)–H methylsulfonylation of inactivated cyclic amines with the promotion and participation of inorganic sodium metabisulfite and dicumyl peroxide (DCP) has been developed. Notably, bifunctional DCP acted not only as an oxidant to promote the dehydrogenation but also as a methyl radical
FeCl 3催化的灭活环胺的C(sp 3)-H脱氢和C(sp 2)-H甲基磺酰化,并通过无机亚
硫酸氢钠和过氧化二枯基的促进和参与,有效合成β-甲基磺酰化N-杂环。) 已经被开发出来。明显地,双官能DCP不仅充当促进脱氢的氧化剂,而且充当参与砜形成的甲基。通过该方案,以简便的一锅法获得了许多β-甲基磺酰化的四氢
吡啶,四氢氮杂和
吡咯。