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Catalyst and Sensitizer‐Free Visible‐Light‐Induced C(sp 2 )−H Chalcogenation of Arenes/ Heteroarenes with Dichalcogenides
Author(s) -
Kumaraswamy Gullapalli,
Ramesh Vankudoth,
Gangadhar Maram,
Vijaykumar Swargam
Publication year - 2018
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201800332
Subject(s) - chemistry , regioselectivity , photochemistry , aryl , visible spectrum , catalysis , molecule , electron transfer , combinatorial chemistry , organic chemistry , alkyl , optoelectronics , physics
A direct selenation of arenes and heteroarenes at room temperature has been accomplished. This protocol was enabled by a visible‐light‐promoted single‐electron‐transfer (SET) pathway without a directing group. An array of arenes and heteroarenes, such as indoles, pyrroles, and functionalized aryl substrates could go through this selenation with high yields and regioselectivity. The salient feature of this protocol is the SET achieved by irradiating one of two organic molecules thereby avoiding a sensitizer to form a radical ion pair.