(AGENPARL) – LONDON (UNITED KINGDOM), ven 18 settembre 2020
A new and efficient method for the C3-chalcogenylation of indolines employing visible-light irradiation, graphene oxide as a promoter at room temperature has been achieved. The reaction features are metal-free and iodine-free conditions, simple operation, high yields, non-toxic and easy-to-handle oxidant, gram-scalable synthesis. This benign protocol allows one to access a wide range of 3-arylthioindoles, 3-arylselenylindoles, and even 3-thiocyanatoindoles with good to excellent yields.
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