SCHEDULED MAINTENANCE
Methylation of the NN-disubstituted sulphonamides (IIIa,b) by dimethoxycarbonium hexachloroantimonate (II) gave the crystalline N-methylated salts (IVa,b), which afforded methyl amine derivatives on acid hydrolysis.
T. Oishi, K. Kamata and Y. Ban, J. Chem. Soc. D, 1970, 777 DOI: 10.1039/C29700000777
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