Y. Yamamoto et al., Stereoselective isomerization of unsymmetrical diallyl ethers to allyl (E)-vinyl ethers by a cationic iridium catalyst, SYN COMMUN, 30(13), 2000, pp. 2383-2391
The stereoselective isomerization of unsymmetrical diallyl ethers to allyl
(E)-vinyl ethers was carried out in the presence of a cationic iridium(I) c
atalyst. The catalyst prepared in situ by treating [Ir(cod)(PPh2Me)(2)]PF6
with hydrogen was found to be an excellent catalyst to selectively isomeriz
e the less substituted allyl group to an (E)-vinyl ether.