A Simple Synthetic Route to Enantiopure α-Hydroxy Ketone Derivatives by Asymmetric Hydrogenation
作者:Tian Sun、Xumu Zhang
DOI:10.1002/adsc.201200224
日期:2012.11.26
DuanPhos has been proved to be the most effective ligand for this reaction. The high yield and enantioselectivity of the asymmetric hydrogenation of the α-ketone enol acetates represents a feasible syntheticroute to important pharmaceutical building blocks: α-hydroxy ketones.
Ein einfacher Zugang zu 4-hydroxy-2,5-dimethyl-3(2H)-furanon (furaneol), einem Aromabestandteil von Ananas und Erdbeere
作者:Luciano Re、Bruno Maurer、G�nther Ohloff
DOI:10.1002/hlca.19730560609
日期:1973.7.18
Furaneol®1 [4-hydroxy-2,5-dimethyl-3(2H)-furanone (1)], a flavour component of pineapple and strawberry, has been prepared by a two-step synthesis starting with readily available 3-hexyne-2,5-diol.