Boranes, additions to alkenes

Even though borane addition to alkenes happens without a catalyst, the catalytic version is important because it has usefully different chemo-, regio and stereoselectivities (Section 9.5). Enantiomeric excesses as high as %% can be obtained with a Rh( R -binap) catalyst in the conversion of norbor-nene to exo-norborneol, and additions to allylic alcohols which give a 10 90 ratio of synianti product in the absence of a catalyst switch to a % 4 ratio with Wilkinson s catalyst." ... 

Even though borane addition to alkenes happens without a catalyst, the x t alytic version is important because it has usefiilly different chemo-, legio-, and... 

---

See also in sourсe #XX -- [ , , ]

---