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- W4297260081 abstract "Stereochemically pure phosphines with phosphorus-heteroatom bonds and P-centered chirality are a promising class of functional building blocks for the design of chiral ligands and organocatalysts. A route to enantiomerically pure primary aminophosphine sulfides was opened through stereospecific reductive C-N bond cleavage of phosphorus(V) precursors by lithium in liquid ammonia. The chemoselectivity of the reaction as a function of reaction time, substrate pattern, and chiral auxiliary was investigated. In the presence of exclusively aliphatic groups bound to the phosphorus atom, all competing reductive side reactions are totally prevented. The absolute configurations of all P-stereogenic compounds were determined by single-crystal X-ray diffraction analysis. Their use as synthetic building blocks was demonstrated. The lithium salt of (R)-BINOL-dithiophosphoric acid proved to be a useful stereochemical probe to determine the enantiomeric purity. Insights into the coordination mode of the lithium-based chiral complex formed in solution was provided by NMR spectroscopy and DFT calculations." @default.
- W4297260081 created "2022-09-28" @default.
- W4297260081 creator A5019027813 @default.
- W4297260081 creator A5041368625 @default.
- W4297260081 creator A5073048622 @default.
- W4297260081 date "2022-10-28" @default.
- W4297260081 modified "2023-10-18" @default.
- W4297260081 title "Access to Enantiomerically Pure <i>P</i>‐Stereogenic Primary Aminophosphine Sulfides under Reductive Conditions" @default.
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