作者:Animesh Goswami、Zhiwei Guo、William L. Parker、Ramesh N. Patel
DOI:10.1016/j.tetasy.2005.03.012
日期:2005.5
vinyl butyrate was used as the acylating agent. The enantiomeric excess was increased by using ethyl esters of long chain fatty acids. The rate of the reaction was increased by using methyl t-butyl ether as a solvent. (S)-sec-Butylamine of very high enantiomeric excess was obtained by C. antarctica lipase catalyzed acylation with ethyl decanoate in methyl t-butyl ether.
当使用丁酸乙酯或丁酸乙烯酯作为酰化剂时,南极假丝酵母脂肪酶拆分(±)-仲丁胺可提供非常低的残留胺对映体过量。通过使用长链脂肪酸的乙酯增加对映体过量。通过使用甲基叔丁基醚作为溶剂来提高反应速率。通过C.南极洲脂肪酶用癸酸乙酯在甲基叔丁基醚中的酰化作用,得到对映体过量的(S)-仲-丁胺。