Direct Synthesis of Indolines via Cyclization of Tertiary Aryl Amines with Iodonium Ylides under Sole Visible Light Irradiation

Herein we reported a direct synthesis series of indolines through cyclization of tertiary aryl amines with iodonium ylides. This cyclization reaction occurred under sole visible-light irradiation at room temperature without the addition of any photocatalysts and additives. Preliminary mechanism studies revealed that an electron donor-acceptor (EDA) complex between iodonium ylides and tertiary aryl amines should be formed during the reaction.

Automated summary

In this study, a direct synthesis method for indolines through visible-light irradiation at room temperature without the addition of any photocatalysts and additives was reported. Mechanism studies showed the formation of an electron donor-acceptor complex between iodonium ylides and tertiary aryl amines during the reaction.