The reaction of stabilized ylides with α-oxoesters gives high yields of 4-oxo-2-pentenoic esters. By suitable substitution of each reactant, highly substituted and hindered enones can be prepared in quantity, with excellent geometric selectivity.
稳定的耦合物与α-氧酯的反应可高产率地生成4-氧代-
2-戊烯酸酯。通过对每个反应物进行适当取代,可以大量制备高度取代和受阻的烯酮,且具有优异的几何选择性。