1.
J Org Chem
; 82(18): 9425-9434, 2017 09 15.
Artículo
en Inglés
| MEDLINE
| ID: mdl-28813606
RESUMEN
The secondary RP-(-)-menthyl alkylphosphine oxide was confirmed as configurationally stable toward base and was used in base-promoted alkylation, stereospecifically affording P-retained bis or functional tertiary phosphine oxides in excellent yields. The alkylated products were deoxygenated using oxalyl chloride followed by ZnCl2-NaBH4 to form P-inversed bidentate phosphine boranes in high stereoselectivities.