Synthesis, Isolation, and Full Spectroscopic Characterization of Eleven (Z)-Isomers of (3R,3?R)-Zeaxanthin
作者:Gerhard Englert、Klaus Noack、Emil A. Broger、Ernst Glinz、Max Vecchi、Reinhard Zell
DOI:10.1002/hlca.19910740507
日期:1991.8.7
Developmental efforts to improve the yield of the chemical synthesis of (3R,3′R)-zeaxanthin resulted in the isolation, partly by chromatography from reaction mixtures, and full spectroscopic characterization by 1H-NMR, UV/VIS, and CD spectrosocpy of eleven (Z/E)-isomers of zeaxanthin: (7Z)-, (9Z), (13Z)-, (15Z)-, (7Z,7′Z)-, (9Z,9′Z)- (7Z,9Z,7Z)-, (7Z,11Z,7′Z)-, (9Z,13Z,9′Z)-, (7Z,9Z,7′Z,9′Z)-, and
发展努力来改善(3的化学合成的产率[R,3' - [R)-zeaxanthin导致隔离,部分地被从反应混合物中层析,并通过全光谱表征1 H-NMR,UV / VIS,和CD spectrosocpy玉米黄质的11种(Z / E)异构体的组成:(7 Z)-,(9 Z),(13 Z)-,(15 Z)-,(7 Z,7'Z)-,(9 Z,9 ′ Z)-(7 Z,9 Z,7 Z)-,(7 Z,11 Z,7′Z)-,(9 Z,13 Z,9'Z)-,(7 Z,9 Z,7'Z,9'Z)-和(7 Z,9 Z,11 Z,7'Z,9' Z)-玉米黄质。这些异构体中的五个是通过特定合成获得的,即(7 Z)-,(7 Z,7'Z)-,(9 Z,9'Z)-,(7 Z,9 Z,7'Z)-和(7 ž,9 ž,7' ž -9 ž) -异构体。