I. Yavari, Jamil Sheykhahmadi, Samira Bahemat
Aug 8, 2018
Citations
0
Influential Citations
4
Citations
Journal
Synlett
Abstract
Abstract A convenient Michael addition/cyclization sequence of alkyl isocyanide–acetylenic ester zwitterionic adducts with various pyrazolone derivatives, leading to the formation of dialkyl 6-(alkylamino)-1-methyl-4-oxo-3-phenyl-9-aryl-2,3-diazaspiro[4.4]nona-1,6,8-triene-7,8-dicarboxylates in moderate to good yields, is described. The structure of the target compounds was confirmed by an X-ray diffraction study.