Abstract:
:In this article, we explore, both theoretically and experimentally, the general reactivity of alkyl hydrogeno-phenylphosphinates with alcohols. We show that alcohol molecules act exclusively as nucleophilic species, and add to alkyl hydrogeno-phenylphosphinates, leading to pentacoordinated intermediates. These intermediates are shown to subsequently competitively undergo alcohol eliminations and/or Berry pseudorotations. This offers several possible routes for racemizations and/or alcohol exchange reactions. Transition standard Gibbs free energies predicted from DFT calculations for the overall alcohol exchange mechanism are shown to be compatible with those experimentally measured in case ethanol reacts with ethyl hydrogeno-phenylphosphinate (134.5∼136.0 kJ mol-1 at 78 °C). Graphical abstract ᅟ.
journal_name
J Mol Modeljournal_title
Journal of molecular modelingauthors
Javierre G,Fortrie R,Jean M,Moraleda D,Naubron JV,Fotiadu Fdoi
10.1007/s00894-017-3343-7subject
Has Abstractpub_date
2017-05-01 00:00:00pages
168issue
5eissn
1610-2940issn
0948-5023pii
10.1007/s00894-017-3343-7journal_volume
23pub_type
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