rel-(1R,6S,7S,8R,9S)-9-methyl-8-phenyl-6-[(1S,2R)-(2-phenylcyclohexyl)oxy]-4-aza-3,5-dioxatricyclo[5.2.1.0(4,9)]decane

被引:2
作者
Dixon, JA
Swiss, KA
Denmark, SE
机构
[1] Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL 61801
关键词
D O I
10.1107/S0108270196006671
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The structure of the title compound, C26H31NO3, was determined by X-ray crystallography. It was found to be a unique bridged tricyclic nitroso acetal. Notable features include a chair conformation of the tetrahydro-1,2-oxazine ring and a highly pyramidalized N atom [Sigma(angles)=314.2(6)degrees]. The configurations of the five contiguous stereogenic centers in the nitroso acetal establish that the tandem cycloaddition sequence proceeded via an exo-[4+2]/endo-[3+2] pathway.
引用
收藏
页码:2561 / 2563
页数:3
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