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Synthesis 1985; 1985(10): 956-958
DOI: 10.1055/s-1985-31400
DOI: 10.1055/s-1985-31400
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Thermal Rearrangements of N-Aryl-1-alkynesulphenamides into Indoline-2-thiones
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Publication Date:
27 September 2002 (online)
Reaction of bromomagnesium benzenamides with 1-alkynyl thiocyanates affords the title sulphenamides. On heating in benzene, these sulphenamides undergo [3.3]-sigmatropic rearrangements followed by cyclisation of the intermediate thioketenes yielding indoline-2-thiones.