Catalytic insertion of diazo compounds into N–H bonds: the copper alternative
ME Morilla, MM Díaz-Requejo, TR Belderrain…
文献索引:Morilla, M. Esther; Diaz-Requejo, M. Mar; Belderrain, Tomas R.; Nicasio, M. Carmen; Trofimenko, Swiatoslaw; Perez, Pedro J. Chemical Communications, 2002 , # 24 p. 2998 - 2999
We first performed a test reaction with pyrrolidine as the amine and ethyl diazoacetate, EDA, as the carbene source with four different catalysts [eqn. (2)]. The molar ratio employed was 1∶50∶50 for [cat]∶[EDA]∶[amine]. The results are shown in Table 1.† Quantitative conversions of equimolar mixtures of EDA and the amine were observed in all cases, the difference being established in the time required for the completion of the transformation. The experiments ...