Cycloadditions of α-(4-[2.2]paracyclophanyl)-N-methyl nitrone
作者:Ashraf A. Aly、Henning Hopf、Peter G. Jones、Ina Dix
DOI:10.1016/j.tet.2006.02.047
日期:2006.5
Cycloadditions of the newly synthesized α-(4-[2.2]paracyclophanyl)-N-methyl nitrone (9) with selected dipolarophiles such as phenyl isocyanate (10), styrene (13), dimethyl acetylenedicarboxylate (15) and methylene sulfene (17) are reported. Two isolated diastereomeric oxadiazolones 11 and 12 are obtained by the reaction of 9 with 10, whereas the reaction of 9 with either 13 and/or 15 gives only one