A rhodium(III)-catalyzed intermolecularC–Hamination of ketoxime and iodobenzene diacetate-enabled N–N bond formation in the synthesis of indazoles has been developed. A variety of functional groups were well tolerated, providing the corresponding products in moderate to good yields. Moreover, the nitro-substituted ketoximes are well compatible in this reaction, leading to the corresponding products
Avogadro, Gazzetta Chimica Italiana, 1926, vol. 56, p. 720
作者:Avogadro
DOI:——
日期:——
Tandem Oxidation Processes: The Direct Conversion of Activated Alcohols into Oximes; Synthesis of Citaldoxime
作者:Richard J. Taylor、Hisashi Kanno
DOI:10.1055/s-2002-32949
日期:——
The direct conversion of primary alcohols into oximes is reported using manganese dioxide and alkoxylamines/hydroxylamine as their hydrochloride salts or supported on Amberlyst 15. This transformation has been applied to a range of benzylic, allylic and propargylic alcohols and utilised to prepare the natural product citaldoxime.
Ph(Me)CH substituent, respectively, located at the N-atom. The obtained products, containing a primary amino group, were used for the synthesis of imidazole N-oxides bearing a trifluoromethylgroup as a part of the N(1)-alkyl chain. Imidazole N-oxides with an electron-withdrawing ester group at C(4) underwent spontaneous isomerization under the reaction conditions, and the corresponding imidazol-2-ones