- A facile synthesis of N-aryl-N-hydroxyformamides from N-arylhydroxylamines
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Several N-arylhydroxylamines (2) have been formylated for the first time with acetic formic anhydride to yield N-hydroxyformanilides (3) in better yields than hitherto reported.
- Ayyangar, N. R.,Brahme, K. C.,Shingare, M. S.,Srinivasan, K. V.
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p. 961 - 963
(2007/10/02)
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- Reactions of N1-Hydroxyformamidines with Heterocumulenes
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N1-Hydroxyformamidines and isocyanates react to yield N1-(carbamoyloxy)formamidines and/or 3-amino-1,2,4-oxazolidin-5-ones.Frequently the formation of ureas is observed.It can be explained by an oxidoreductive rearrangement to 1,3,5-trisubstituted biurets which undergo abstraction of isocyanate.Reactions with carbodiimides lead to 3-amino-5-imino-1,2,4-oxadiazolidines, ureas and carbodiimides not identical with the educts.
- Zinner, Gerwalt,Schecker, Heinz-Guenther,Heuer, Wilhelm
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p. 1006 - 1014
(2007/10/02)
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- Reaction of Nitroso Aromatics with Glyoxylic Acid. A New Path to Hydroxamic Acids
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In aqueous solution substituted aromatic nitroso compounds react rapidly with glyoxylic acid to produce N-hydroxyformanilides and CO2.The reaction is nearly quantitative for all nitroso aromatics investigated and serves as a convenient synthetic route to
- Corbett, Michael D.,Corbett, Bernadette R.
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p. 2834 - 2839
(2007/10/02)
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