کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1315098 | 976003 | 2007 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Trifluoromethanesulfonylimides of arenehydroxamic acids and their aza Lossen rearrangement Trifluoromethanesulfonylimides of arenehydroxamic acids and their aza Lossen rearrangement](/preview/png/1315098.png)
Trifluoromethanesulfonylimides of arenehydroxamic acids ArC(NSO2CF3)NHOH (1), analogues of arenehydroxamic acids, in which sp2 hybridized oxygen atom is replaced by the much stronger electron-withdrawing group NSO2CF3, have been synthesized, and the abilities of these compounds to undergo transformations similar to the Lossen rearrangement have been studied.At heating O-trimethylsilyl or O-tosyl derivatives of acids 1 rearrange to carbodiimides ArNCNSO2CF3 or products of their hydration, the corresponding carbamides. Interaction of acids 1 with sulfinyl chloride or phosphorus pentachloride results in formation of N-trifluoromethylsulfonyl-N′-arenechloroformamidines, ArNHC(Cl)NSO2CF3, which were transformed into their morpholine derivatives and thus characterized.
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Journal: Journal of Fluorine Chemistry - Volume 128, Issue 5, May 2007, Pages 515–523