Rh(III)-catalyzed annulation of N-azolo imines and dioxazolones. The reaction proceeds by the first catalytic C–H amidation of an imidoyl C–H bond followed by cyclodehydration. Good yields were obtained for N-azolo imines derived from aminoazoles and aromatic and heteroaromatic aldehydes. A range of dioxazolone amidating reagents were employed to introduce aryl, heteroaryl, and alkyl substituents. The reaction
通过Rh(III)催化的N-偶氮
亚胺和二
恶唑酮的环化反应,获得了各种偶氮[1,3,5]三嗪。该反应是通过
亚胺基CH键的第一次催化CH酰胺化反应,然后进行环脱
水反应而进行的。衍生自
氨基唑,芳族和杂芳族醛的N-偶氮
亚胺获得了良好的收率。使用多种二
恶唑酮酰胺化试剂来引入芳基,杂芳基和烷基取代基。该反应还使用微波加热在1mmol规模的台式装置上进行。