The formation of 1,3-dimethylquinol-2-one (6a) by reaction of N-methyl-N-phenyl-2-oxopropanamide (1a) with diethyl (diazomethyl)phosphonate (2), an apparent CH insertion by an alkylidenecarbene, is shown to involve a stepwise rather than a concerted reaction pathway.
N-甲基-N-苯基-2-氧
丙烷酰胺(1a)与(重氮甲基)
膦酸二乙酯(2)反应形成1,3-二甲基
喹啉2-(6a),明显的是C = H插入。亚烷基碳烯显示出涉及逐步而不是协调的反应途径。