N-Benzoyl- and N-methoxycarbonyltrifluoroacetimidoylphosphonates react with dimethylcyanamide in a [4+2]-cycloaddition to give 4-phosphorylated 1,3,5-oxadiazines. The structures of the products were confirmed by NMR (1H, 13C, 19F, 31P) and IR spectra and by XRD analysis. © 2002 John Wiley & Sons, Inc. Heteroatom Chem 13:22–26, 2002; DOI 10.1002/hc.1102
N-苯甲酰基-和 N-甲氧羰基三
氟乙
亚胺酰基
膦酸酯与二甲基
氰胺在 [4+2]-环加成中反应生成 4-
磷酸化的 1,3,5-恶二嗪。产物的结构经核磁共振(1H、13C、19F、31P)和红外光谱以及XRD分析证实。© 2002 John Wiley & Sons, Inc. 杂原子
化学 13:22–26, 2002; DOI 10.1002/hc.1102