期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：1999
卷号：45
期号：1
页码：49-62
DOI：10.3177/jnsv.45.49
出版社：Center for Academic Publications Japan
摘要：An isolation of 9 Z β-carotene from Dunaliella bardawil was accomplished by low-pressure column chromatography with Ca(OH)2 column. Furthermore, it was stereoselectively synthesized by Wittig re-action between the C10-phosphonium salt 2 and 9 Z β-apo-8'-carotenal 1, which was prepared by Emmons-Horner reaction of 9 Z β-ionylidene-acetaldehyde 3 with phosphonates 6 and 7 or 8a and 9.
