作者:Sean M. Smith、Nathan C. Thacker、James M. Takacs
DOI:10.1021/ja710492q
日期:2008.3.1
(>95%) and enantioselective (93-99% ee) rhodium-catalyzedhydroboration with pinacolborane (PinBH) using simple chiral monophosphite or phosphoramidite ligands in combination with Rh(nbd)2BF4. The most effective ligands identified are phosphoramidite 4, derived from BINOL and N-methylaniline, and phosphite 5c, prepared from the (4'-tert-butyl)phenyl TADDOL analogue and phenol. For example, (E)-3-hexenoic