Preparation of Aza-Polycyclic Aromatic Compounds via Superelectrophilic Cyclizations
作者:Ang Li、Thomas M. Gilbert、Douglas A. Klumpp
DOI:10.1021/jo8003474
日期:2008.5.1
[GRPHICS]Alkenyl-substituted N-heterocycles react in superacidic CF3SO3H (triflic acid) to produce dicationic intermediates. These superelectrophiles undergo cyclizations to give varied aza-polycyclic aromatic compounds in generally good yields (27-99%, 16 examples). Theoretical calculations indicate a preference for charge-separated dicationic intermediates.
RAMESH, D.;KAR, GANDHI K.;CHATTERJEE, BASANTA G.;RAY, JAYANTA K., J. ORG. CHEM., 53,(1988) N 1, 212-214
作者:RAMESH, D.、KAR, GANDHI K.、CHATTERJEE, BASANTA G.、RAY, JAYANTA K.