Issue 14, 2018

Stereoselective allylic reduction via one-pot palladium-catalyzed allylic sulfonation and sulfinyl retro-ene reactions

Abstract

A tandem approach for the stereoselective allylic reduction has been developed based on a strategy combining the palladium-catalyzed S-allylation and the sulfinyl retro-ene reactions. In a one-pot process employing various allylic carbonates, sodium t-butyldimethylsilyloxymethanesulfinate (TBSOMS-Na), easily prepared from the commercially available reagent Rongalite™, serves as a potent nucleophile to engage in the Tsuji–Trost S-allylation reaction generating allylic sulfone products. Subsequently, in situ deprotection of the TBSOMS group reveals allylic sulfinic acids which undergo stereospecific reductive transposition via sulfur dioxide extrusion to provide alkene products.

Graphical abstract: Stereoselective allylic reduction via one-pot palladium-catalyzed allylic sulfonation and sulfinyl retro-ene reactions

Supplementary files

Article information

Article type
Research Article
Submitted
05 Mar 2018
Accepted
31 May 2018
First published
31 May 2018

Org. Chem. Front., 2018,5, 2158-2162

Stereoselective allylic reduction via one-pot palladium-catalyzed allylic sulfonation and sulfinyl retro-ene reactions

H. Um, J. Min, T. An, J. Choi and C. Lee, Org. Chem. Front., 2018, 5, 2158 DOI: 10.1039/C8QO00233A

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