A mixed phosphonium-iodonium ylide, phenyliodoniumethoxycarbonylmethylenetriphenyl-phosphorane borofluoride, was synthesized. Its structure was established by means of X-ray diffraction analysis. Temperature dependence of 1H, 13C, and 31P spectra of the ylide synthesized was investigated. A dynamic equilibrium between Z and E-isomers was observed.
Bibliographical noteFunding Information:
This study was carried out under financial support of CRDF, grant RC2-2216, and Russian Foundation for Basic Research, grant no. 02-03-32163. One of the authors (N.S.Zefirov) is grateful to A.V. Humboldt Foundation and to Professor R. Gleiter, University of Heidelberg for possibility to carry out research in this field.