Binaphthyl phosphines

Hayashi showed that binaphthyl phosphine oxides such as 193 undergo phosphorus-lithium exchange with BuLi to generate binaphthylllithiums such as 194.162... 

R)-2-DIPHENYLPHOSPHINO-2 -METHOXY-1,1 -BINAPHTHYL (Phosphine, (2 -methoxy[1,1l-binaphthaien]-2-yl)diphenyl-, (R)-)... 

The asymmetric hydrosilylation of 1-alkenes giving highly optically active 2-tri-chlorosilylalkanes is catalyzed by palladium complexes with chiral monodentate binaphthyl phosphine (MOP) ligands. ... 

This research group also investigated the intramolecular arene epoxidation of binaphthyl phosphine derivatives. Singlet oxygen reacts with l,l -binaphthyl-2-di-tert-butylphosphine to form the corresponding phosphine oxide-epoxide intermediate with complete retention of stereochemistry. This then undergoes a slow NIH-rearrangement to form the 1-phosphinoxido-l -hydroxy binaphthyl derivative (Scheme 9). °... 

In the course of developing an easy access to chiral y-butenolides, Shi et al. have established an efficient multifunctional chiral binaphthyl phosphine-catalysed allylic substitution of Morita-Baylis-Hillman acetate with 2-tri-methylsiloxy furan. The regjospecific allylic substitution occurred to provide the xyra-y-butenolide in good to excellent yield, high regjoselectivity and excellent enantioselectivity by using water as an additive. The scope of this reaction could be successfully extended to a variety of Morita Baylis Hillman acetates, as shown in Scheme 5.10. 

---