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α-芳族酮酸钛盐和锂试剂还原反应机理初探
A STUDY ON THE MECHANISM OF THE REDUCTIVE REACTION OF TITANATES OF α-KETO AROMATIC ACIDS WITH RLi
【摘要】 对钛调整体系中的一种新的还原反应的机理进行推证 ,证明体系的还原反应中存在一种类似Meerwein Ponderf Verley还原反应的分子内氢迁移反应 ,同时证明体系中的锂试剂以 2种不同的方式促进了该还原反应的进行 .
【Abstract】 A new reductive reaction is discovered in the system of titanium involving titanates of carboxylic acids ArCOCOOTi(OR 1) 3 and RLi, its mechanism is investigated in detail. The new reduction is proved to mostly result from the migration of hydrogen from OR 1 group to carbonyl group similar to the reduction of Meerwein-Ponderf-Verley. It is also concluded that RLi reagents facilitate the reaction in two manners.
【关键词】 羧酸钛盐;
α-酮酸;
α-羟基羧酸;
还原机理;
【Key words】 titanate; α-keto acid; α-hydroxyl acid; mechanism of reduction;
【Key words】 titanate; α-keto acid; α-hydroxyl acid; mechanism of reduction;
【基金】 国家自然科学基金资助项目 ( 2 93 72 0 3 8)
- 【文献出处】 北京师范大学学报(自然科学版) ,Journal of Beijing Normal University(Natural Science) , 编辑部邮箱 ,2001年05期
- 【分类号】O621.25
- 【被引频次】1
- 【下载频次】48