کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5279860 | 1385634 | 2005 | 4 صفحه PDF | دانلود رایگان |
An easy to handle and stable racemization catalyst for secondary alcohols is obtained by an in situ mixture of readily available [Ru(cymene)Cl2]2 with chelating aliphatic diamines. Optimization of the reaction revealed that N,N,Nâ²,Nâ²-tetramethyl-1,3-propanediamine as ligand racemizes aromatic alcohols completely within 5Â h. This easy to handle and stable catalytic system is combined with a lipase-catalyzed resolution to provide an efficient dynamic kinetic resolution of secondary alcohols.
An in situ mixture of ruthenium cymene chloride with readily available chelating aliphatic amines is a very efficient racemization catalyst for secondary alcohols, which is successfully applied in the lipase catalyze dynamic kinetic resolution of alcohols.
Journal: Tetrahedron Letters - Volume 46, Issue 19, 9 May 2005, Pages 3403-3406