Synthesis of Seven-Membered Cyclic Enol Ether Derivatives from the Reaction of a Cyclic Phosphonium Ylide with α, β-Unsaturated Esters

T Fujimoto, Y Kodama, I Yamamoto…

Index: Devos,M.J. et al. Tetrahedron Letters, 1976 , p. 3911 - 3914

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Citation Number: 18

Abstract

... Uijttewaal et al. ... the previously reported cycloheptene derivative 16 1 which was later confirmed to have a trans relationship on the basis of X-ray crystallography 9 suggested that 4a has an analogous ring conformation and a similar dihedral angle between the Ph 2 P(O) and Ph ...