Isolation of 9Z beta-carotene from Dunaliella bardawil and its stereoselective synthesis.
An isolation of 9Z beta-carotene from Dunaliella bardawil was accomplished by low-pressure column chromatography with Ca(OH)2 column. Furthermore, it was stereoselectively synthesized by Wittig reaction between the C10-phosphonium salt 2 and 9Z beta-apo-8'-carotenal 1, which was prepared by Emmons-Horner reaction of 9Z beta-ionylideneacetaldehyde 3 with phosphonates 6 and 7 or 8a and 9.
Yamano
Y
Y
Kobe Pharmaceutical University, Japan.
Yoshizawa
M
M
Ito
M
M
D000460:Chlorophyta / Q000737:chemistry*; D002845:Chromatography / Q000379:methods; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D013237:Stereoisomerism; D019207:beta Carotene / Q000138:chemical synthesis* / Q000302:isolation & purification*
D019207:beta Carotene