Catalysis of Oxo Transfer to Prochiral Sulfides by Oxovanadium(V) Compounds That Model the Active Center of Haloperoxidases
作者:Gabriella Santoni、Giulia Licini、Dieter Rehder
DOI:10.1002/chem.200304595
日期:2003.10.6
chiral vanadium compounds--[(S,S,S)-VO(OMe)L1] (5), [(S,S)-VO(OMe)L2] (6), [(S,S)-VO(OMe)L3] (7), and [(R,R,R)-VO(OMe)L4] (8), as well as the system VO(OiPr)(3)/(R,R,R)-H(2)L4 [H(2)L1=(S,S)-bis(2-hydroxypropyl)-(S)-1-phenylethylamine, 1; H(2)L2=(S,S)-bis(2-hydroxypropyl)benzylamine, 2; H(2)L3=(S,S)-bis(2-hydroxypropyl)isopropylamine), 3; (H(2)L4)=(R,R)-bis(2-phenylethanol)-(R)-1-phenylethylamine, 4]--in
新型手性钒化合物的催化性能-[(S,S,S)-VO(OMe)L1](5),[(S,S)-VO(OMe)L2](6),[ (S,S)-VO(OMe)L3](7)和[(R,R,R)-VO(OMe)L4](8),以及系统VO(OiPr)(3)/( R,R,R)-H(2)L 4 [H(2)L 1 =(S,S)-双(2-羟丙基)-(S)-1-苯基乙胺,1; H(2)L2 =(S,S)-双(2-羟丙基)苄胺,2; H(2)L3 =(S,S)-双(2-羟丙基)异丙胺),3; (H(2)L4)=(R,R)-双(2-苯基乙醇)-(R)-1-苯基乙胺,4]-研究了有机氢过氧化物对前手性硫化物的不对称氧化。已经特别注意了以下因素,这些因素指导区分硫化物的两个前手性面(甲基对甲苯基硫化物和苄基苯基硫化物),以及氧化剂引起的空间位阻(枯基氢过氧化物和叔丁基氢过氧化物),以及所使用的特定复合物。例如,在0°C下150