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Acta Chimica Sinica ›› 1966, Vol. 32 ›› Issue (1): 46-52. Previous Articles Next Articles
黄维垣, 徐锦文, 孙诗澄
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HUANG Wei-Yuan, HSU Jin-Wen, SUN Shie-Cherng
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In order to determine the configuration at C20 of γ-sitosterol by the conventional chemical method of correlation of configuration,a synthesis of 24-ethyl cholesterol using hyodesoxycholic acid (Ⅳ) as the starting material has been carried out.The series of reactions involved is as follows:IV→Va→Vb→Vc→Vd →VIc→VIf→Ⅷ→VIg→VIh→VIi→24-ethyl cholesterol.However,the final product was found to be β-sitosterol instead of the expected 24-iso-β-sitosterol.
HUANG Wei-Yuan, HSU Jin-Wen, SUN Shie-Cherng. THE STEREOCHEMISTRY OF THE SIDE CHAIN OF PHYTOSTEROL——AN ATTEMPT AT SYNTHESIS OF 24-ISO-β-SITOSTEROL[J]. Acta Chimica Sinica, 1966, 32(1): 46-52.
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