Stereoisomers of selenilimines: isolation and reactions of 9-phenylselenoxanthene-N-arylsulfonylselenilimines |
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Authors: | Mikio Hori Tadashi Kataoka Hiroshi Shimizu Kiminori Tomimatsu |
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Institution: | Gifu College of Pharmacy, 6-11, Mitahora-higashi 5-chome, Gifu 502 Japan |
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Abstract: | The isolates cis- and trans-9phenylselenoxanthene-N-arylsulfonylselenilimines were not interconverted thermally. cis-Isomers were converted to trans-isomers by chloramine-T or -B in a fashion of SN2 type substitution. cis-Isomers did not rearrange but trans-isomers rearranged thermally to 9-arylsulfonamido-9-phenylselenoxanthenes, whereas both isomers underwent the base-catalyzed intermolecular rearrangement. |
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