SYNTHESIS AND STEREOCHEMICAL CHARACTERIZATION OF SOME OPTICALLY-ACTIVE 1,2-DINAPHTHYLETHANE-1,2-DIOLS

被引:40
作者
ROSINI, C [1 ]
SCAMUZZI, S [1 ]
UCCELLOBARRETTA, G [1 ]
SALVADORI, P [1 ]
机构
[1] CNR,CTR MACROMOLEC STEREORDINATE & OTTICAMENTE ATT,DIPARTIMENTO CHIM & CHIM IND,I-56126 PISA,ITALY
关键词
D O I
10.1021/jo00103a035
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Three new diols, 1,2-di(2-naphthyl)ethane-1,2-diol, 1-(1-naphthyl)-2-(2-naphthyl)ethane-1,2-diol, and 1,2-di(1-naphthyl)ethane-1,2-diol, have been prepared in optically active form by catalytic asymmetric syn-dihydroxylation of the corresponding (E)-olefins. The complete stereochemical characterization was easily accomplished by transforming them into the corresponding isopropylidene ketals. These derivatives can be separated by HPLC on a Chiralcel OD column allowing the determination of the ee, and at same time, their CD spectra have been analyzed, allowing a safe assignment of absolute configuration in conjunction with molecular mechanics calculations and an exciton-coupling treatment.
引用
收藏
页码:7395 / 7400
页数:6
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