4
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María del Carmen García González from IQ-UNAM, for her
assistance with selected MS/HRMS measurements.
References and notes
11. Methyl sulfinate 5a was obtained as the main byproduct. Although
anhydrous conditions can be employed for the synthesis of
sulfonyl halides, we saw no important difference when regular
dichloromethane was used.
1
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0. See the Supplementary data for additional control experiments.
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product, which is expected if an intermediate of this nature was
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Generally, bromide is considered a better leaving group in
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2. A related mechanism, where an alcohol is the source of oxygen for
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