Synthesis of 3-aryl-1-phosphinoimidazo[1,5-<i>a</i>]pyridine ligands for use in Suzuki–Miyaura cross-coupling reactions
作者:Ryan Q. Tran、Long P. Dinh、Seth A. Jacoby、Nekoda W. Harris、William A. Swann、Savannah N. Williamson、Rebecca Y. Semsey、Larry Yet
DOI:10.1039/d1ra05417a
日期:——
5-a]pyridine ligands were synthesized from 2-aminomethylpyridine as the initial substrate via two complementary routes. The first synthetic pathway underwent the coupling of 2-aminomethylpyridine with substituted benzoyl chlorides, followed by cyclization, iodination and palladium-catalyzed cross-coupling phosphination reactions sequence to give our phosphorus ligands. In the second route, 2-aminomethylpyridine
3-芳基-1-膦基咪唑并[1,5-a]吡啶配体以2-氨基甲基吡啶为初始底物,通过两条互补路线合成。第一个合成途径经历了 2-氨基甲基吡啶与取代的苯甲酰氯的偶联,然后进行环化、碘化和钯催化的交叉偶联次膦化反应序列,得到我们的磷配体。在第二条路线中,2-氨基甲基吡啶用芳基醛环化,然后进行碘化和钯催化的交叉偶联次膦化反应,得到我们的磷配体。在钯催化的空间位阻联芳基和杂联芳基 Suzuki-Miyaura 交叉偶联反应中评估了 3-芳基-1-膦基咪唑并[1,5-a]吡啶配体。