Interaction of (Ph3P) 4Pt with alkynylvinyl triflates: stereochemistry and mechanism of formation of. sigma.-enynyl and. sigma.-butatrienyl cationic platinum (II) …
PJ Stang, AK Datta
文献索引：Stang, Peter J.; Datta, Arun K. Organometallics, 1989 , vol. 8, p. 1024 - 1029
Reaction of alkynylvinyl triflates with (PhsP), Pt results in u-enynyl or u-butatrienyl cationic platinum (I1) complexes as reasonably stable microcrystalline solids in 63-84% isolated yields. Only hindered triflates give a-butatrienyl complexes. Stereochemical studies established that a multistep process, involving initial a-acetylene formation, subsequent rearrangement to a u-butatrienyl complex and attack by a second Pt species, to give the ...
