Add time:08/24/2019         Source:sciencedirect.com

One-pot three-step sulfonylative alkoxyhydroxylation of 2-arylpropenes 1 affords oxygenated sulfonylcumenes 4 in moderate yields via a sequential route: (i) NBS-mediated allylic bromination of 2-arylpropenes 1 in CH2Cl2, (ii) sodium sulfinates 2-promoted nucleophilic substitution of the resulting styryl bromides in a co-solvent of alcohol and water, and (iii) V2O5/H2O2 mediated alkoxyhydroxylation of corresponding styryl sulfones 3 in alcohol. The synthetic route provides a highly effective protocol for the 1,2,3-tricarbofunctionalization of 2-arylpropenes 1 via two carbon-oxygen and one carbon-sulfur bond formations.

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