Abstract
The zwitterionic intermediates, generated in situ from Ph3P and dialkyl acetylenedicarboxylates, are trapped by N–H acidic 2-(alkylamino)-2-(1,3-dioxo-1H-inden-2(3H)-ylidene)acetonitriles in refluxing toluene to afford dialkyl 2-alkyl-1-cyano-9-oxo-3,9-dihydro-2H-indeno[2,1-c]pyridine-3,4-dicarboxylates in good yields. The structure of a typical product was confirmed by X-ray crystallography.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Monatshefte für Chemie und verwandte Teile anderer Wissenschaften
Paper Title
Journal
Date
