We reported a new synthesis of 2-aryl-2H-indazoles via a silver-catalyzed [3+2]-cycloaddition of benzynes with diazocarbonyl reagents. We postulate that this transformation involves the generation of (1H-indazol-1-yl)silver to activate a subsequent arylation with the second benzyne.
我们报告了一种通过
银催化苄基与重氮羰基试剂的 [3+2]- 共加成反应合成 2-芳基-2H-
吲唑的新方法。我们推测这种转化涉及生成 (1H-indazol-1-yl)silver 来激活随后与第二个苄基的芳基化反应。