Ethyl 6-methyl-4-[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl]-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate

Autor: Stephen A. Westcott, Christopher M. Vogels, Dominique R. Duguay, Matthew T. Zamora, Andreas Decken
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Acta Crystallographica Section E, Vol 64, Iss 5, Pp o929-o929 (2008)
Druh dokumentu: article
ISSN: 16005368
1600-5368
DOI: 10.1107/S1600536808005965
Popis: A new Biginelli compound, C18H25BN2O4S2, containing a boronate ester group was synthesized from a lithium bromide-catalysed reaction. The compound crystallizes with two independent molecules in the asymmetric unit that differ mainly in the conformation of the ester functionality. The crystal structure is stabilized by intermolecular N—H...O and N—H...S hydrogen bonds involving the 3,4-dihydropyrimidine-2(1H)-thione NH groups as donors and the carbonyl O and thiophene S atoms as acceptors.
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