Tetrahedron p. 3559 - 3565 (1984)
Update date:2022-08-03
Topics:
Desbene, P.-L.
Cherton, J.-C.
Azidopyrans rearrange at room temperature to 1,3-oxazepins but azidothiopyrans need heating to form unstable thiazepins. these intermediate thiazepins give the competitive formation of the corresponding pyridines after sulphur extrusion or of the corresponding thiophens after elimination of benzonitrile. Photochemical attempts to obtain thiazepins from azidothiopyrans were unsuccessful.
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Doi:10.1007/BF01179468
()Doi:10.1002/anie.200702122
(2007)Doi:10.1016/j.tetlet.2012.09.024
(2012)Doi:10.1021/acs.joc.8b02290
(2018)Doi:10.1039/c3nj41030g
(2013)Doi:10.1055/s-2007-983778
(2007)
