Cytotoxic 1,2-Dialkynylimidazole-Based Aza-Enediynes: Aza-Bergman Rearrangement Rates Do Not Predict Cytotoxicity
作者:Christophe Laroche、Jing Li、Sean M. Kerwin
DOI:10.1021/jm200289j
日期:2011.7.28
synthesized: the 1,2-dialkynylimidazoles. The aza-Bergman rearrangement of these 1,2-dialkynylimidazoles has been investigated theoretically at the B3LYP/6-31G(d,p) level and experimentally by measuring the kinetics of rearrangement in 1,4-cyclohexadiene. There is a good correlation between the theoretical and experimental results; subtle substituenteffects on the initial aza-Bergman cyclization barrier predicted