Fast-Synthesis of α-Phosphonyloxy Ketones as Drug Scaffolds in a Capillary Microreactor
作者:Bandaru T. Ramanjaneyulu、Shinde Vidyacharan、Se Jun Yim、Dong-Pyo Kim
DOI:10.1002/ejoc.201901655
日期:2019.12.19
A fast single‐step synthesis of α‐phosphonyloxy ketones in continuous flow at r.t. has been developed. A wide range of highly reactive 1,2‐dicarbonyls readily reacts with trialkyl phosphites and formic acids to give the corresponding α‐phosphonyloxy ketones in moderate to good yields (50–82%) in continuous‐flow with the flow rate of 3 ml/min (tR = ∼4 s). The reaction products can be utilized to form
已开发出在室温连续流动的快速单步合成α-膦酰氧基酮的方法。各种各样的高反应性1,2-二羰基化合物易于与亚磷酸三烷基酯和甲酸反应,以3 ml / ml的流速连续流动,以中等至良好的收率(50-82%)得到相应的α-膦酰氧基酮。 min(t R =〜4 s)。反应产物可用于形成天然产物和活性药物成分的替代关键前体/支架。