Thermal cyclisation of o-substituted N-trifluoroacetyl enehydrazines was systematically investigated and found to proceed via dienylimine intermediates, which were unambiguously characterised by X-ray and spectral analysis.
经系统研究,发现邻位取代的N-三
氟乙酰烯酮
肼通过二烯
亚胺中间体进行热环化反应,并通过晶体衍射和光谱分析明确鉴定了这些中间体。