2,3-<i>O</i>-ISOPROPYLIDENE-<scp>L</scp>-ERYTHROTETRURONIC ACID AND -<scp>L</scp>-ERYTHROSE, AND THE METHYL<scp>D</scp>-ERYTHRO- AND<scp>D</scp>-THREO-TETROFURANOSIDES
作者:J. N. Baxter、A. S. Perlin
DOI:10.1139/v60-299
日期:1960.11.1
Oxidation of 2,3-O-isopropylidene-β-L-rhamnose (I) with hypoiodite, followed by periodate cleavage of the derived aldonic acid, affords 2,3-O-isopropylidene-L-erythrotetruronic acid. Reduction of I with sodium borohydride and periodate oxidation of the resulting glycitol gives 2,3-O-isopropylidene-L-erythrose. Both products have been obtained in high yield, and are readily hydrolyzed to L-erythrotetruronic
用次碘酸盐氧化 2,3-O-异亚丙基-β-L-鼠李糖 (I),然后对衍生的醛糖酸进行高碘酸盐裂解,得到 2,3-O-异亚丙基-L-赤藓糖醛酸。用硼氢化钠还原 I 并氧化所得糖醇,得到 2,3-O-异亚丙基-L-赤藓糖醇。两种产物均以高收率获得,并且很容易分别水解为 L-赤藓糖醛酸和 L-赤藓糖。 α-和 β-D-赤型-和 D-苏-四呋喃糖苷已通过 Fischer 糖苷合成制备D-赤藓糖-和D-苏糖-甲酸酯,分别。已经观察到甲基 D-苏糖苷的四乙酸铅氧化行为的显着异头差异,β-异头物比 α-异头物更具反应性。