STEPWISE SYNTHESIS OF 2-AMINO-3-VINYLINDOLIZINES USING A MIXTURE OF <i>N</i>-ALLYL-2-HALOPYRIDINIUM HALIDES AND CH ACID DERIVED FROM ACETONITRILE
DOI:
https://doi.org/10.1007/463Keywords:
2-амино-3-винилиндолизины, индолизин, соли N-аллилпиридинияAbstract
N-Allyl-2-bromo- and N-allyl-2-chloropyridinium halides react with malonodinitrile and thiazolyl derivatives of acetonitrile in the presence of a twofold excess of triethylamine to provide nucleophilic substitution products, which undergo Thorpe cyclization smoothly upon treatment with KOH to give the corresponding 2-amino-3-vinylindolizines.
Authors: N. M. Tverdokhleb and G. E. Khoroshilov.
English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (8), pp 1141-1145