Rate enhancement of lipase-catalyzed reaction using CO2-expanded liquids as solvents for chiral tetralol synthesis
作者:Yuichi Suzuki、Kosuke Taniguchi、Hai Nam Hoang、Mayumi Tamura、Tomoko Matsuda
DOI:10.1016/j.tetlet.2022.153837
日期:2022.6
applicability of CO2 as a solvent has been increasingly important due to the need to develop efficient reactions replacing ordinary organic solvents derived from fossil fuel with sustainable solvents such as pressurized CO2. In our previous study of solvent engineering of a lipase-catalyzed reaction of bulky substrates, the conversions were higher for the reaction in CO2-expanded liquids, liquids expanded by dissolving
由于需要开发有效的反应,用可持续溶剂(如加压 CO 2 )替代源自化石燃料的普通有机溶剂,因此对 CO 2作为溶剂的适用性的研究变得越来越重要。在我们之前对大体积底物的脂肪酶催化反应的溶剂工程研究中,CO 2膨胀液体(通过溶解加压 CO 2膨胀的液体)中的反应转化率高于没有 CO 2 的液体中的转化率。本研究展示了对 CO 2的详细检查-膨胀液体作为溶剂用于脂肪酶催化的外消旋 1-四氢萘酚、2-四氢萘酚和取代的 1-四氢萘酚类似物的动力学拆分,因为手性取代的四氢萘酚类似物是重要的药物中间体。CO 2膨胀液体在保持优异的对映选择性(E > 200)的同时,将反应速率提高了无 CO 2反应的 40 倍。外消旋 1-四氢萘酚和 2-四氢萘酚的制备规模反应成功地产生了相应的 (R)-乙酸酯和 (S)-醇,具有高产率和优异的对映选择性(高达 ee >99%)。