Silyloxymethanesulfinate As A Sulfoxylate Equivalent For The Modular Synthesis Of Sulfones And Sulfonyl Derivatives
CHEMICAL SCIENCE(2020)
Abstract
An efficient protocol for the modular synthesis of sulfones and sulfonyl derivatives has been developed utilizing sodium tert-butyldimethylsilyloxymethanesulfinate (TBSOMS-Na) as a sulfoxylate (SO22-) equivalent. TBSOMS-Na, easily prepared from the commercial reagents Rongalite (TM) and TBSCl, serves as a potent nucleophile in S-alkylation and Cu-catalyzed S-arylation reactions with alkyl and aryl electrophiles. The sulfone products thus obtained can undergo the second bond formation at the sulfur center with various electrophiles without a separate unmasking step to afford sulfones and sulfonyl derivatives such as sulfonamides and sulfonyl fluorides.
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Key words
sulfonyl derivatives,sulfoxylate equivalent,sulfones,modular synthesis
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