α-Fluorotricarbonyl Derivatives as Versatile Fluorinated Building Blocks: Synthesis of Fluoroacetophenone, Fluoroketo Ester and Fluoropyran-4-one Derivatives
作者:Antal Harsanyi、Anne Lückener、Hedvig Pasztor、Zahide Yilmaz、Lawrence Tam、Dmitry S. Yufit、Graham Sandford
DOI:10.1002/ejoc.202000503
日期:2020.7.7
Fluorinated acyl‐Meldrum’s acid derivatives were synthesised by electrophilic fluorination of appropriate phenacyl Meldrum’s acid substrates using Selectfluor. Reactions with water, ethanol, Grignard and alkynyl lithium reagents gave rise to the corresponding fluoro‐acetophenone, ‐1,3‐ketoester, ‐1,3‐diketone and ‐pyran‐4‐one products respectively from the same selectively fluorinated scaffold in one‐step
氟化酰基-Meldrum 酸衍生物是通过使用 Selectfluor 对合适的苯甲酰基 Meldrum 酸底物进行亲电氟化来合成的。与水、乙醇、格氏试剂和炔基锂试剂的反应分别从同一选择性氟化支架中产生相应的氟苯乙酮、-1,3-酮酯、-1,3-二酮和-吡喃-4-one 产物-步骤程序。