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Spatial Recognition Within Terpenes: Redox and H-bond Promoted Linkage Isomerizations and the Selective Binding of Complex Alkenes.

ABSTRACT: A method for the resolution of ? ²-alkene-complex isomers of the type MoTp(NO)(DMAP)(? ²-alkene) and WTp(NO)(PMe₃)(? 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.

SUBMITTER: Dakermanji SJ

PROVIDER: S-EPMC7810221 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Spatial Recognition Within Terpenes: Redox and H-bond Promoted Linkage Isomerizations and the Selective Binding of Complex Alkenes.

Dakermanji Steven J SJ Westendorff Karl S KS Pert Emmit K EK Wilson Katy B KB Myers Jeffery T JT Wilde Justin H JH Dickie Diane A DA Welch Kevin D KD Harman W Dean WD

Organometallics 20200427 10

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 ...[more]

PMID: 33456102

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