The Cu-catalyzed direct beta-trifluoromethylation of alpha,beta-unsaturated aldehyde N,N-dibenzylhydrazones with Togni hypervalent iodine reagent is described. The reaction yields stereodefined CF3-alkenyl derivatives under mild conditions and is proposed to proceed via a radical process.
SHARMA, S. D.;PANDHI, S. B., J. ORG. CHEM., 55,(1990) N, C. 2196-2200
作者:SHARMA, S. D.、PANDHI, S. B.
DOI:——
日期:——
GULOGLU N. HAYRUNNISA; PARLAR HARUN, CHEM.-ZTG, 110,(1986) N 12, 445-447
作者:GULOGLU N. HAYRUNNISA、 PARLAR HARUN
DOI:——
日期:——
PARLAR HARUN; GULOGLU HAYRUNISSA; HERRMANN M.; KOTZIAS DIMITRIS, CHEMOSPHERE, 16,(1987) N 1, 19-27
available N‐aryl conjugated hydrazones with tert‐butyl iodide has been developed. In this reaction, tert‐butyl iodide is used as anhydrous HI source, and the generated HI acts as a Brønsted acid and a reducing agent. This operationally simple method allows access to various indole derivatives. Furthermore, the procedure can be applied to the synthesis of biologicallyactive compounds.