Acyl Amidines by Pd-Catalyzed Aminocarbonylation: One-Pot Cyclizations and <sup>11</sup>C Labeling
作者:Jonas Rydfjord、Sara Roslin、Tamal Roy、Alaa Abbas、Marc Y. Stevens、Luke R. Odell
DOI:10.1021/acs.joc.2c02115
日期:——
Notably, carbon monoxide is generated ex situ from a solid CO source, and several productive palladium ligands were identified with complementary benefits and substrate scope. Furthermore, sequential one-pot, two-step protocols for the synthesis of 1,2,4-triazoles and 1,2,4-oxadiazoles via acyl amidine intermediates are reported. In addition, this approach was extended to isotopic labeling using [11C]carbon
本文报道了由 Pd(0) 催化的芳基卤化物、脒和一氧化碳羰基合成酰基脒的方案。值得注意的是,一氧化碳是从固体 CO 来源非原位产生的,并且确定了几种具有互补优势和底物范围的高效钯配体。此外,还报道了通过酰基脒中间体合成 1,2,4-三唑和 1,2,4-恶二唑的连续一锅法、两步法方案。此外,该方法还扩展到使用 [ 11 C] 一氧化碳进行同位素标记,从而首次合成11 C 标记的酰基脒以及11 C 标记的 1,2,4-恶二唑。