Enantioselective Organophotocatalytic Telescoped Synthesis of a Chiral Privileged Active Pharmaceutical Ingredient
作者:Fabian Herbrik、Miguel Sanz、Alessandra Puglisi、Sergio Rossi、Maurizio Benaglia
DOI:10.1002/chem.202200164
日期:2022.6.10
asymmetric alkylation of aldehydes was studied, by using a homemade, custom-designed photoreactor for reactions under cryogenic conditions. Going from microfluidic conditions up to a 10 mL mesofluidic reactor, an increase of productivity by almost 18000 % compared to the batch reaction was demonstrated. Finally, for the first time, a stereoselective photoredox organocatalytic continuous flow reaction
通过使用自制、定制设计的光反应器在低温条件下进行反应,研究了醛的连续流动、对映选择性、有机光氧化还原催化不对称烷基化。从微流控条件到 10 mL 中流控反应器,与分批反应相比,生产率提高了近 18000%。最后,首次成功实现了在完全伸缩过程中用于活性药物成分 (API) 合成的立体选择性光氧化还原有机催化连续流动反应。最终工艺由四个操作单元组成:连续流动下可见光驱动的不对称催化苄基化、在线连续后处理、中和和最终的氧化酰胺化步骤,得到 95% ee 的药物活性分子