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
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摘要: 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 12 obtained by reaction 9 10, whereas either 13 and/or 15 gives only one diastereomer isoxazole 14 16. 4-([2.2]Paracylophanyl)-N-methylamine (20) was 17. The structure compounds 9, assigned X-ray structural analysis.
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