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L 或 D-苏氨酸,经亚硝酸脱氨溴化、甲酯化、钯催化氢化以及氢化铝锂还原四步反应制得纯 R 或 S-1,3-丁二醇对
L or D-threonine, nitration deamination bromination, methyl esterification, palladium-catalyzed hydrogenation and lithium aluminum hydride reduction four-step reaction of pure R or S-1,3-butanediol