Beilstein J. Org. Chem.2005,1, No. 9, doi:10.1186/1860-5397-1-9
-chloroindolizines readily underwent nucleophilic substitution at position 5 leading in high yields to novel 5-functionalised indolizines.
Keywords: 5-chloroindolizine; 5-substituted indolizines; 5-indolizinone; nucleophilic substitution; Indolizines are an important class of heterocyclic compounds since many
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Graphical Abstract
Scheme 1:
Synthesis of 2-aryl-5-chloro-6-cyano-7-methylindolizines 2. Possible tautomeric structures A and B ...