Journal of the Chemical Society. Chemical communications p. 190 - 191 (1984)
Update date:2022-08-05
Topics:
Meth-Cohn, Otto
Vuuren, Gerda van
When ethyl or phenyl azidoformate, or p-tolylsulphonyl azide are decomposed in warm tetrachlorothiophene, tetrachlorothiophene S,N-ylides are formed; 2,5-dichloro-, 2,5-dibromo-, and tetrabromo-thiophene on the other hand give products arising from attack at the α-position followed by rearrangement.
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