Amine-Free O-Sulfonylation by a Combination of 4-Methylpyridine N-Oxide Catalyst with 4? Molecular Sieves
SYNLETT（2022）
Abstract
An amine-free sulfonylation of various alcohols was developed that uses 4-methylpyridine N-oxide in the presence of 4 angstrom molecular sieves at room temperature. This mild method gives various sulfonylated products in high yields, and can be applied to base-sensitive substrates.
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Key words
sulfonylation,methylpyridine oxide,alcohols,molecular sieves,sulfonates,mesylation
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