501381-03-9Relevant articles and documents
l-Menthol-Assisted Synthesis of P-Stereogenic Phosphinous Acid Amides and Phosphine-Boranes
W?odarczyk, Adam,Kozio?, Anna E.,Stankevi?, Marek
, p. 1589 - 1600 (2018/04/20)
Diastereomerically pure phenylphosphonous acid-borane l-menthyl ester N,N-diethylamide was obtained through the fractional crystallization of a diastereomeric mixture of compounds synthesized from PhPCl2, l-menthol, diethylamine, and BH3·THF. Treatment of racemic or diastereomerically pure phenylphosphonous acid-borane derivatives with sodium in liquid ammonia followed by the addition of an electrophile led to the formation of phosphinous acid-amides. Surprisingly, these compounds undergo preferential P–N bond cleavage under Birch reduction conditions.
In situ dearomatisation/alkylation of arylphosphane derivatives
Stankevic, Marek,Wojcik, Karolina,Jaklinska, Magdalena,Pietrusiewicz, K. Michal
, p. 2521 - 2534 (2012/06/01)
The dearomatisation of aryldialkylphosphane-boranes and aryldialkylphosphane oxides under Birch reduction conditions, followed by treatment with reactive alkyl halides, provides the corresponding α-functionalised (cyclohexa-1,4-dien-3-yl)phosphane derivatives. This reaction offers a method of choice for the synthesis of bulky (cyclohexadienyl)phosphanes.
7-Phosphanorbornenium borohydrides: A powerful route to functional secondary phosphine-borane complexes
Tian, Rongqiang,Mathey, Francois
scheme or table, p. 1873 - 1874 (2010/06/14)
The reaction of phosphanorbornenium triflates with sodium borohydride gives the secondary phosphine-borane complexes by reductive cleavage of the two P-C bonds of the bridge. This route is compatible with functionalities such as Cl, CN, CO2Et, and Th.