Myrtenal optically active ligand from

Taddei and cowoikers reported that chiral allyltrimethylsUanes containing an optically active ligand derived from (-)-myrtenal attached to silicon (96) underwent enantioselective addition reactions with achiral aldehy s ( heme 46) to give, after acid hydrolysis, optically active homoallyl alcohols (98). A variety of Lewis acids were exanuned to optimize enantiomeric excess, and TiCU was found to be the most effective catalyst. The results of the TlCU-promoted additions are reported in Table 12. ... 

---