Kf. Mcclure et al., REMARKABLE STEREOCHEMICAL INVERSION IN SOME HECK ARYLATION REACTIONS - A MECHANISTIC PROPOSAL, Journal of organic chemistry, 59(2), 1994, pp. 355-360
Internal arylation reactions of enol ethers were used to form the 1,5-
epoxybenzazocine ring system of FR 900482. An interesting inversion pr
ocess was observed for Z-enol ethers.