CO 2 -expanded bio-based liquids as novel solvents for enantioselective biocatalysis
作者:Hai Nam Hoang、Yoshihiro Nagashima、Shuichi Mori、Hiroyuki Kagechika、Tomoko Matsuda
DOI:10.1016/j.tet.2017.04.024
日期:2017.5
(MeTHF), and other bio-based liquids, which were not favorable solvents for immobilized Candida antarctica lipase B (Novozym 435) catalyzed transesterification, were tuned into excellent reaction media. Especially, for the kinetic resolution of challenging bulky secondary substrates such as rac-1-adamantylethanol, the lipase displayed very high activity with excellent enantioselectivity (E value > 200) in
首次报道了CO 2膨胀的生物基液体是用于生物催化的新型且可持续的溶剂。这里,人们发现,通过膨胀与CO 2,2-甲基四氢呋喃(MeTHF),和其它生物基液体,它们不是为固定的有利的溶剂南极假丝酵母脂肪酶B(的Novozym 435)催化的酯交换,被调谐到优良的反应介质。特别是,对于具有挑战性的大体积次生底物(例如rac -1-金刚烷基乙醇)的动力学拆分,脂肪酶在CO 2中显示出很高的活性,并具有出色的对映选择性(E值> 200)。-扩展了MeTHF(MeTHF浓度为10%v / v,6 MPa),而在常规有机溶剂中几乎没有观察到活性。