Terminating Platinum-Initiated Cation-Olefin Reactions with Simple Alkenes
作者:Joseph G. Sokol、Chandra Sekhar Korapala、Peter S. White、Jennifer J. Becker、Michel R. Gagné
DOI:10.1002/anie.201100463
日期:2011.6.14
All for one: Phosphine‐ligated platinum(II) electrophiles can activate polyalkenes for cyclase enzyme mimicking cascade cyclizations without the need for special terminating groups (see scheme). Like the cyclase enzymes, terminal alkenes that generate tertiary cations are good substrates, although the details of the cation termination depend on the alkene arrangement.
Diastereoselective Pt Catalyzed Cycloisomerization of Polyenes to Polycycles
作者:Michael J. Geier、Michel R. Gagné
DOI:10.1021/ja500656k
日期:2014.2.26
Application of a tridentate NHC containing pincer ligand to Pt catalyzed cascade cyclization reactions has allowed for the catalytic, diastereoselective cycloisomerization of biogenic alkene terminated substrates to the their polycyclic counterparts.
PdII- and PtII-Mediated Polycyclization Reactions of 1,5- and 1,6-Dienes: Evidence in Support of Carbocation Intermediates