从(R)-BINOL出发,经4步反应合成了一种新型手性Schiff碱配体——(R)-1-(2-羟基萘-1-基)-3-{[(R)-1-苯基乙亚胺]甲基}萘-2-酚(4),其结构经1H NMR,13C NMR,IR和MS表征。以CCl4为溶剂,4/Ti(O-i-Pr)4/异丙基过氧化氢(2.0 eq)为催化体系,于0℃反应9 h的最佳反应条件下,产物甲基苯基亚砜的收率77%,66%ee.
A new chiral Schiff base ligand,(R)-1-(2-hydroxynaphthalen-1-yl)-3-{[(R)-1-phenylethylimino)methyl]naphthalen-2-ol(4),were synthesized from(R)-BINOL by a four-step reactions,and the structure was characterized by 1H NMR,13C NMR,IR and MS.The yield of methyl phenyl sulfoxide was 77% with 66%ee using CCl4 as the solvent and 4/Ti(O-i-Pr)4/isopropyl-peroxyl(2.0 eq) as the catalytic system at 0 ℃ for 9 h.