1,3-Dipolar cycloaddition reactions of substituted 3,4-dihydroisoquinoline N-oxides with allenes
作者:Bao-Xiang Zhao、Shoji Eguchi
DOI:10.1016/s0040-4020(97)00642-x
日期:1997.7
study of the 1,3-dipolar cycloaddition behavior of a series of substituted 3,4-dihydroisoquinoline N-oxides with electron-deficient allenes has been carried out. The 1,3-dipolar cycloaddition reaction proceeds in high yield with complete regioselectivity to give 5-methylene isoxazolidines. The stability of these 5-methylene isoxazolidines was depending on the structure of nitrones and allenes.
已经进行了一系列电子不足的烯丙基取代的3,4-二氢异喹啉N-氧化物的1,3-偶极环加成行为的研究。1,3-偶极环加成反应以高收率进行,具有完全的区域选择性,得到5-亚甲基异恶唑烷。这些5-亚甲基异恶唑烷的稳定性取决于硝酮和丙二烯的结构。