Photoredox- or Metal-Catalyzed in Situ SO 2 -Capture Reactions: Synthesis of β-Ketosulfones and Allylsulfones

Min Zheng, Guigen Li, Hongjian Lu

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


The first report of the in situ capture of the SO 2 fragment of the trifluoromethylsulfonyl radical is described here. With cyclobutanone oximes as representative alkyl radical precursors, vinyl triflates and allyl trifluoromethylsulfones were employed as radical acceptors and SO 2 sources to provide various β-ketosulfones and allylsulfones, known to be significant building blocks. Without the use of any additives including external SO 2 gas, the reaction was performed under mild photoredox- or metal-catalytic conditions while tolerating various functional groups.

Original languageEnglish
Pages (from-to)1216-1220
Number of pages5
JournalOrganic Letters
Issue number4
StatePublished - Feb 15 2019

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