Sakineh Asghari, Zahra Sobhaninia, Zahra Naderi
2008
Citations
0
Influential Citations
4
Citations
Journal
Acta Chimica Slovenica
Abstract
Ethyl 2-oxo-1-cyclopentanecarboxylate undergoes a reaction with dialkyl acetylenedicarboxylate in the presence of triphenyphosphine to produce stable phosphorus ylides in good yields. These ylides undergo intramolecular Wittig reaction in boiling toluene to produce cyclobutene derivatives, which undergo ring-opening reactions to produce dialkyl (Z)-2-[2-(ethoxycarbonyl)-1-cyclopentenyl]-2-butenedioates.