ASYMMETRIC REDUCTION OF ORTHO-SUBSTITUTED BENZOPHENONES WITH B-CHLORODIISOPINOCAMPHEYLBORANE - A CONVENIENT SYNTHESIS OF ENANTIOMERICALLY ENRICHED BENZHYDROLS
Wc. Shieh et al., ASYMMETRIC REDUCTION OF ORTHO-SUBSTITUTED BENZOPHENONES WITH B-CHLORODIISOPINOCAMPHEYLBORANE - A CONVENIENT SYNTHESIS OF ENANTIOMERICALLY ENRICHED BENZHYDROLS, Tetrahedron letters, 36(22), 1995, pp. 3797-3800
A very efficient synthesis of chiral benzhydrols from ortho-substitute
d benzophenones is described which presumably utilizes a heteroatom-di
rected, intramolecular asymmetric reduction of ketones with B-chlorodi
isopinocampheylborane.