Abstract
The reaction of 5-alkynyl-3,4-dihydro-2H-pyrroles (imine) with AuCl3 led to the synthesis of the vinyl gold (III) complexes 3 that could give the aurocycles 4 with an excess of AuCl3. In the base presence the dimerization of 4 was observed leading to 5. If NaAuCl4 was used as gold (III) source a ligand exchange was observed leading to the complexes 6. Nucleophilicity of both nitrogen atom and alkyne function as well as imine-enamine tautomerism were involved to explain the formation of 3.
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