Hydroaminoalkyl Functionalization of Pyrimidin‐2(1<i>H</i>)‐ones by Visible Light Organophotocatalysis: A Radical Approach to Biginelli‐Type Dihydropyrimidines
作者:Oleh Lukianov、Viktor Tkachuk、Svitlana Shishkina、Leonid Lachmann、Olga Vadzyuk、Petro Borysko、Dmytro Kovalskyy、Isabelle Gillaizeau、Volodymyr Sukach
DOI:10.1002/adsc.202300781
日期:2023.10.24
visible-light-mediated hydroaminoalkylation of pyrimidin-2(1H)-ones via the aza-Giese-type reaction in presence of acridinium dye as photocatalyst under mild aerobic conditions. Using N-Boc protected aminoalkyl trifluoroborates as radical precursors and various pyrimidine-2(1H)-one substrates, a diverse set of Biginelli-type 3,4-dihydropyrimidin-2(1H)-ones was prepared in 31–73% yields. Further transformation
在此,我们报道了在吖啶鎓染料作为光催化剂存在下,在温和有氧条件下,通过氮杂吉斯型反应,可见光介导的嘧啶-2(1H)-酮的氢氨烷基化。使用N -Boc 保护的氨基烷基三氟硼酸盐作为自由基前体和各种嘧啶-2(1 H )-酮底物,以 31-73% 的浓度制备了多种 Biginelli 型 3,4-二氢嘧啶-2(1 H )-酮产量。所得产物的进一步转化使得能够合成3,6,7,7a-四氢-1H-吡咯并[3,4-d]嘧啶-2,5-二酮衍生物,该衍生物有望作为聚(ADP-核糖)抑制剂) 聚合酶 (PARP)(荧光测定中 PARP-2 的 IC50 为 0.46–1.12 μM)。