Enantioselective Synthesis of 4-(Dimethylamino)pyridines through a Chemical Oxidation-Enzymatic Reduction Sequence. Application in Asymmetric Catalysis
作者:Eduardo Busto、Vicente Gotor-Fernández、Vicente Gotor
DOI:10.1002/adsc.200600274
日期:2006.12
Enantiomerically pure 4-(dimethylamino)-3-(1-hydroxyalkyl)pyridines and 4-(dimethylamino)-3-[hydroxy(phenyl)methyl]pyridine have been prepared through efficient chemoenzymatic routes. For this purpose different lipases and oxidoreductases have been tested in the preparation of optically active 4-chloro derivatives and baker’s yeast was found to be an excellent catalyst for the bioreductions of the
对映体纯的4-(二甲基氨基)-3-(1-羟基烷基)吡啶和4-(二甲基氨基)-3- [羟基(苯基)甲基]吡啶是通过有效的化学酶法制备的。为此,在制备光学活性的4-氯衍生物中已经测试了不同的脂肪酶和氧化还原酶,并且发现面包酵母是用于相应的酮的生物还原的极好的催化剂。研究了它们作为对映选择性亲核催化剂的应用,在四元中心的立体选择性结构中观察到了重要的催化性能。