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6-Methyl-sulfanyl-4H-pyrimido[1,6-a]pyrimidin-4-one
- Source :
- Acta Crystallographica Section E: Structure Reports, Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2572-o2572 (2009)
- Publication Year :
- 2009
-
Abstract
- Reaction of 2-(methylsulfanyl)pyrimidin-4-amine with the 5-(methoxyvinylidene) derivative of Meldrum's acid and subsequent heating of the product in Dowtherm fluid yielded the title compound, C8H7N3OS, which was proven to contain a bicyclic 4H-pyrimido[1,6-a]pyrimidine system. All non-H atoms of the molecule are coplanar within 0.15 Å. The bond-length distribution in the bicyclic core shows localization of the double bonds. The geometry of the intramolecular S...O 1,5-contact [2.534 (2) Å] is consistent with the existence of an attractive interaction.
Details
- ISSN :
- 16005368
- Volume :
- 65
- Issue :
- Pt 10
- Database :
- OpenAIRE
- Journal :
- Acta crystallographica. Section E, Structure reports online
- Accession number :
- edsair.doi.dedup.....1c7475d80de27a3c4f1f79f93ff0509d