1,3-Dipolar cycloaddition of nitrosonaphthols to 3-aroylazindines. Novel syntheses of substituted naphtho[1,2-<i>d</i>]oxazoles and naphtho[2,1-<i>d</i>]oxazoles
作者:J. W. Lown、J. P. Moser
DOI:10.1139/v70-371
日期:1970.7.15
A series of 3-aroyl-2-arylaziridines underwent 1,3-dipolar cycloadditions in both orientations to the nitrogen–oxygen bond of 1-nitroso-2-naphthol. Spontaneous 1,3-cleavage of the intermediate oxadiazolidines to nitrones and cyclodehydration of the latter afforded both 2-aryl- and 2-aroylnaphtho-[1,2-d]oxazoles in good yields. The interpretation of the reaction received confirmation by independent
一系列 3-aroyl-2-arylaziridines 与 1-nitroso-2-naphthol 的氮氧键发生 1,3-偶极环加成反应。中间体恶二唑烷自发 1,3-裂解为硝酮,后者环化脱水以良好的产率得到 2-芳基-和 2-芳酰基萘-[1,2-d] 恶唑。反应的解释得到了几种 2-芳酰基萘并 [1,2-d] 恶唑的独立、明确合成的确认。