SCHEDULED MAINTENANCE
A number of heterocyclic sulphur compounds and their sulphoxides have been S- and O-alkylated respectively, with silver perchlorate and alkyl halides. 5-Methoxydibenzothiophenium and 10-methoxyphenoxathiinium perchlorates reacted with amines to give 5- and 10-aminosulphonium salts, respectively, and with certain carbanions to give zwitterionic compounds.
R. M. Acheson and J. K. Stubbs, J. Chem. Soc., Perkin Trans. 1, 1972, 899 DOI: 10.1039/P19720000899
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