Efficient One-Step Conversion of Primary Aliphatic Amines into Primary Alcohols: Application to a Model Study for the Total Synthesis of (±)-Scopadulin
摘要:
Treatment of primary aliphatic amines with KOH in diethylene glycol at 210 degrees C gives primary alcohols directly in good yields. A synthetic application to a model study of (+/-)-scopadulin is also described.[Graphics]
A model study toward the total synthesis of (±)-scopadulin is described. Stereocontrolledsynthesis of the A/B ring system with desired functionalities was achieved by stereoselective cyanation of a bicyclic enone with Et2AlCN, diastereoselective construction of a quaternary carbon at C-4 with LDA-BOMCl, and conversion of the cyano group into a methyl group.
According to the present invention, there is provided a catalytic complex comprising a metal, one or more ligands and one or more counterions, wherein said one or more ligands include a non-racemic chiral ligand and wherein said one or more counterions include a triflimide counterion. Also provided are methods of making said catalytic complex and processes for producing chiral compounds which involve the use of said catalytic complex. In addition, the present invention provides compounds of the formula (2) as defined herein. The compounds of formula (2) may be useful as ligands in catalytic complexes.
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DOI:10.1021/jo00147a001
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