A General Approach to Site‐Specific, Intramolecular C−H Functionalization Using Dithiocarbamates. Issue 40 (3rd September 2018)

• Record Type: Journal Article
• Authors: Na, Christina G.; Alexanian, Erik J.
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 40(2018)
• Page Start: 13106
• Page End: 13109
• Publication Date: 2018-09-03
• Subjects: C−H functionalization -- hydrogen atom transfer -- radical reactions -- regioselectivity -- synthetic methods; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201806963
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Intramolecular hydrogen atom transfer is an established approach for the site‐specific functionalization of unactivated, aliphatic C−H bonds. Transformations using this strategy typically require unstable intermediates formed using strong oxidants and have mainly targeted C−H halogenations or intramolecular aminations. Herein, we report a site‐specific C−H functionalization that significantly increases the synthetic scope and convergency of reactions proceeding via intramolecular hydrogen atom transfer. Stable, isolable N ‐dithiocarbamates are used as precursors to amidyl radicals formed via either light or radical initiation to efficiently deliver highly versatile alkyl dithiocarbamates across a wide range of complex structures. Abstract : Smart up your HAT : A site‐specific C−H functionalization is presented that significantly increases the synthetic scope and convergency of reactions proceeding via intramolecular hydrogen atom transfer. Stable, isolable dithiocarbamates are used as precursors to amidyl radicals formed via either light or radical initiation to efficiently deliver highly versatile alkyl dithiocarbamates across a wide range of complex structures.