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[摘要]:(Heterocyclic Compounds (More Than One Hetero Atom)) Section A highly stereoselective intramol. 1,3-dipolar cycloaddn. reaction of azomethine ylides derived from 2-vinyloxybenzaldehydes proceeded smoothly to allow for a direct access to tricyclic hexahydrobenzofuro[3,2-b]pyrroles in good yields. The structure of 2-Et 3-Me 2,3,3a,8b-tetrahydro-1H-[1]benzofuro[3,2-b]pyrrole-2,3-dicarboxylate was established by x-ray diffraction anal. |
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