Photocatalyzed Dehydration of 1‐Aryl‐1,2‐Ethanediols to Methyl Ketones Driven by Eosin Y Fragmentation Products

URN to cite this document:: urn:nbn:de:bvb:355-epub-598150
DOI to cite this document:: 10.5283/epub.59815

Taskinen, Elina K.

; Kolb, Daniel

; Morgenstern, Martin

; König, Burkhard

License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 18 Dec 2024 05:20

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Abstract

Herein, we report a mild photocatalytic redox-neutral dehydration of aryl-1,2-ethanediols forming the respective methyl ketones. In the proposed mechanistic cycle an initial hydrogen atom abstraction (HAT) is followed by a 1,2-spin center shift (SCS) as key steps. Interestingly, Eosin Y was found to act as a pre-catalyst dissociating into a catalytically active mixture under irradiation. To the ...