摘要
在氧化 -供氮试剂 N -氯代氨基甲酸苄酯存在下 ,1 ,4-双 ( 9-O-奎宁 ) -2 ,3 -二氮杂萘 -Os O4催化剂在 5种烯烃的不对称氨羟化反应中表现出极高的对映选择性 ( 85 %~ 99% e.e.)和区域选择性 ,产率 48%~ 68% .
Five olefins were aminohydroxylated enantiomerically catalyzed by 1,4-bis(9-O-quininyl)phthalazine-OsO 4 complex in the presence of benzyl N-chlorocarbamate(oxidant and nitrogen source). Excellent enantioselectivity(85%—99% e.e.) as well as specific regio and chemoselectivity were observed and isolated yield of the products 48%—68% was achieved. The results are comparable to those of the best catalyst reported for AA reaction.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第4期651-653,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 9972 0 5 5
2 0 0 0 2 0 0 8)资助