Clennan EL, Aebisher D. The first example of a singlet oxygen induced double bond migration during sulfide photooxidation. Experimental evidence for sulfone formation via a hydroperoxy sulfonium ylide.
J Org Chem 2002;
67:1036-7. [PMID:
11856061 DOI:
10.1021/jo016219t]
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Abstract
The first example of the formation of a sulfone concomitant with double bond migration during photooxidation of a sulfide is reported. Evidence is presented which demonstrates that the double bond migration is not a result of a prior acid-catalyzed rearrangement of an unrearranged sulfone precursor. This unusual observation is used to argue that the sulfone is formed via rearrangement of a hydroperoxy sulfonium ylide intermediate.
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