Competition Between C α ‐S and C α ‐C β Bond Cleavage in β‐Hydroxysulfoxides Cation Radicals Generated by Photoinduced Electron Transfer †
نویسندگان
چکیده
منابع مشابه
Anomalous C-C bond cleavage in sulfur-centered cation radicals containing a vicinal hydroxy group.
1,3-dithianyl cation radicals having alpha-hydroxy-neopentyl or similar groups in position 2, which are generated via oxidative photoinduced electron transfer, undergo anomalous fragmentation necessitating refinement of the accepted mechanism. Experimental and computational data support a rationale in which proton abstraction from the hydroxy group in the initial cation radical does not cause a...
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Molecular fragmentations induced by oxidative electron transfer present a fascinating theoretical challenge and generate a great deal of interest due to their potential applications. It is well-known, for example, that in vicinal diols, amino alcohols, and amino ethers, C-C bonds weakened by photoinduced electron transfer cleave efficiently and selectively. Mechanistic aspects of this cleavage ...
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The dehydroformylation of aldehydes to generate olefins occurs during the biosynthesis of various sterols, including cholesterol in humans. Here, we implement a synthetic version that features the transfer of a formyl group and hydride from an aldehyde substrate to a strained olefin acceptor. A Rhodium (Xantphos)(benzoate) catalyst activates aldehyde carbon-hydrogen (C-H) bonds with high chemos...
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ژورنال
عنوان ژورنال: Photochemistry and Photobiology
سال: 2021
ISSN: 0031-8655,1751-1097
DOI: 10.1111/php.13455