Camphor-10-sulphonanilide (3) has been prepared and the structure confirmed by X-ray crystallography. Comphor-10-sulphonyl chloride reacts with N-methylhydrazine to give the N-methylthiadiazine dioxide (4) and not the expected N-methylhydrazide (6). The reasons for this reaction are discussed. The structure of (4) was confirmed by X-ray analysis; the structures (3) and (40 were also supported by 1H and 13C-NMR spectroscopy.
W JONES ,C R THEOCHARIS ,L WU ,R J CREMLYN ,
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