A method for the resolution of η 2-alkene-complex isomers of the type MoTp(NO)(DMAP)(η 2-alkene) and WTp(NO)(PMe3)(η 2-alkene) (where Tp = hydridotris(pyrazolyl)-borate and DMAP = 4-(dimethylamino)pyridine) has been explored. Alkene and polyene compounds form as a mixture of kinetically trapped isomers. For both types of complexes, it was found that addition of either a fluorinated alcohol or one-electron oxidant reduces the number of isomers in solution. Accelerated ligand exchange was also observed, although these reactions were accompanied by significant decomposition.
A method for thn class="Gene">e resolution of η 2-alkene-complex isomers of the typeMoTp(NO)(DMAP)(η 2-alkene) and WTp(NO)(PMe3)(η 2-alkene) (where Tp = hydridotris(pyrazolyl)-borate and DMAP = 4-(dimethylamino)pyridine) has beenexplored. Alkene and polyene compounds form as a mixture of kinetically trapped isomers. For both types of complexes, it was found that addition of either a fluorinated alcohol or one-electron oxidant reduces the number of isomers in solution. Accelerated ligand exchange was also observed, although these reactions were accompanied by significant decomposition.
Authors: Katy B Wilson; Jacob A Smith; Hannah S Nedzbala; Emmit K Pert; Steven J Dakermanji; Diane A Dickie; W Dean Harman Journal: J Org Chem Date: 2019-04-05 Impact factor: 4.354
Authors: Jeffery T Myers; Jacob A Smith; Steven J Dakermanji; Justin H Wilde; Katy B Wilson; Philip J Shivokevich; W Dean Harman Journal: J Am Chem Soc Date: 2017-08-15 Impact factor: 15.419