a ruthenium catalyst, a 1‐lithium‐2‐alkyl‐1,2‐dihydropyridine complex is shown to be a competitive alternative dehydrogenation catalyst for the transformation of diamine boranes into cyclic 1,3,2‐diazaborolidines, which can in turn be smoothly arylated in good yields. This study established the conditions and solvent dependence of the catalysis through NMR monitoring, with mechanistic insight provided
在以前仅限于
钌催化剂的反应中,1-
锂-2-烷基-1,2-
二氢吡啶配合物被证明是将二胺
硼烷转化成环状1,3,2-二氮杂
硼烷的竞争性脱氢催化剂。进而可以顺
利收成丰厚的芳草。这项研究通过NMR监测(包括
DOSY实验)和几种模型
硫代中间体的X射线晶体学研究提供了机理上的了解,从而通过NMR监测确定了催化的条件和溶剂依赖性。