Pummerer rearrangement

Pummerer rearrangement
Named after Rudolph Pummerer
Reaction type Rearrangement reaction
Identifiers
RSC ontology ID RXNO:0000220

The Pummerer rearrangement is an organic reaction whereby an alkyl sulfoxide rearranges to an α-acyloxy–thioether (monothioacetal-ester) in the presence of acetic anhydride.

The stoichiometry of the reaction is:

RS(O)CHR'2 + Ac2O → RSC(OAc)R'2 + AcOH
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