Diethyl 5,10-dihydro-6-phenylethynyl-4, 11-dioxo-cis-1H,3H,4H,11H-2-oxa-3a, 4a, 10a, 11a-tetraazabenz[f]indeno[2,1,7-ija]azulene-11b, 11c-dicarboxylate

Yun-Feng Chen, Yanfang Cui

Research output: Contribution to journalArticleResearchpeer-review


The title compound, C28H26N4O7, (I) crystallizes with two molecules in the asymmetric unit. It is a glycoluril derivative with five fused rings. A phenylethynyl-substituted benzene ring is fused to a seven-membered ring, which binds two of the N atoms from separate rings of the glycoluril system. The other two N atoms are each linked to an O atom by methylene groups, forming a six-membered ring. The crystal structure is stabilized by intermolecular Ca??H- - -O hydrogen bonds.
Original languageEnglish
Pages (from-to)o4872 - o4873
Number of pages2
JournalActa Crystallographica Section E: Structure Reports Online
Issue number11
Publication statusPublished - 2006
Externally publishedYes

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