Chiral auxiliaries as docking/protecting groups: biohydroxylation of selected ketones with Beauveria bassiana ATCC 7159
作者:Anna de Raadt、Barbara Fetz、Herfried Griengl、Markus Florian Klingler、Birgit Krenn、Kurt Mereiter、Dieter Franz Münzer、Peter Plachota、Hansjörg Weber、Robert Saf
DOI:10.1016/s0040-4020(01)00803-1
日期:2001.9
The concept of chiral docking/protecting groups for biohydroxylation was extended from cyclopentanone to other ketones. Reaction of cyclohexanone, (R)-3-methylcyclohexanone, cycloheptanone, 5-methyl-2-hexanone and 4-methyl-2-pentanone with (R)-2-amino-1-propanol and subsequent in situ benzoylation afforded the corresponding N-benzoylated oxazolidine derivatives. All substrates were hydroxylated with
用于生物羟基化的手性对接/保护基的概念从环戊酮扩展到其他酮。环己酮,(R)-3-甲基环己酮,环庚酮,5-甲基-2-己酮和4-甲基-2-戊酮与(R)-2-氨基-1-丙醇反应,然后原位苯甲酰化,得到相应的N -苯甲酰化的恶唑烷衍生物。所有底物均用真菌球孢白僵菌ATCC 7159羟基化,其中一种经非对映选择性羟基化,得率为99%。以这种方式,提供了接近相应的羟基化酮的途径。