(2014) Deredas, Dariusz; Huben, Krzysztof; Maniukiewicz, Waldemar; Krawczyk, Henryk
A strategically new approach to cyclopentene[c]chroman- 2-ones and cyclopent-1-enecarboxylates by tandem Michael– Horner–Wadsworth–Emmons reaction of 2,5-hexanedione with 3-(diethoxyphosphoryl)coumarins is described. The products were obtained as single diastereoisomers in high yields.