Synthesis, Isolation, and NMR-Spectroscopic Characterization of Fourteen (Z)-Isomers of Lycopene and of Some Acetylenic Didehydro- and Tetradehydrolycopenes
作者:Urs Hengartner、Kurt Bernhard、Karl Meyer、Gerhard Englert、Ernst Glinz
DOI:10.1002/hlca.19920750611
日期:1992.10.2
Eight (Z)-isomers of lycopene were prepared by stereocontrolled syntheses and fully characterized by 1H-NMR, 13C-NMR, mass, and UV/VIS spectroscopy: (5Z)-, (7Z)-, (15Z)-, (5Z,5′Z)-, (7Z,7′Z)-, (7Z,9Z)-, (9Z,9′Z)-, and (7Z,9Z,7′Z,9′Z)-lycopene. Six additional (Z)-isomers, namely (9Z)-, (13Z)-, (5Z,9′Z)-, (9Z,13′Z)-, (5Z,9Z,5′Z)-, and (5Z,13Z,5′Z)-lycopene, were isolated in small quantities from isomer
番茄红素的八个(Z)异构体是通过立体控制合成方法制备的,并通过1 H-NMR,13 C-NMR,质谱和UV / VIS光谱进行了全面表征:(5 Z)-,(7 Z)-,(15 Z)-,(5 Z,5'Z)-,(7 Z,7'Z)-,(7 Z,9 Z)-,(9 Z,9'Z)-和(7 Z,9 Z, 7' ž,9' ž)-lycopene。六个额外的(Z)异构体,即(9 Z)-,(13 Z)-,(5ž,9' Ž) - ,(9 Ž,13' Ž) - ,(5 Ž,9 Ž,5' Ž) - ,和(5 Ž,13 Ž,5' Ž)-lycopene,在小分离半制备可得自异构体混合物的量。HPLC并通过1 H-NMR光谱鉴定。