Crystal structure of 1-phenyl-1 <i>H</i> -pyrazolo[3,4- <i>d</i> ]pyrimidin-4(5 <i>H</i> )-one
Heating of 5-amino-1-phenyl-1<i>H</i>-pyrazole-4-carbo-nitrile in the presence of formic acid yielded the title compound, C<sub>11</sub>H<sub>8</sub>N<sub>4</sub>O. The pyrazolo-[3,4-<i>d</i>]pyrimidine ring system forms a dihedral angle of 34.72 (6)° with the phenyl ring. In the crystal, classical N-H⋯O and non-classical C-H⋯O and C-H⋯N inter-molecular inter-actions result in the formation of supra-molecular bands extending parallel to the <i>a</i> axis. Additional π⋯π inter-actions between pyrimidine and pyrazole rings, and C-H⋯π inter-actions between neighboring phenyl rings consolidate the packing.
Authors
- Burkhon Elmuradov (ORCID: https://orcid.org/0000-0002-9372-8249)
- Nilufar Akhmedova
- N. M. Khasanova (ORCID: https://orcid.org/0000-0002-6342-9694)
- Kosim O. Zokhidov
- K. K. Turgunov (ORCID: https://orcid.org/0000-0001-5741-6347)
- И. С. Ортиков
Institutions
- Samarkand State University named after Sharof Rashidov (UZ)
- Turin Polytechnic University (UZ)
- Yunusov Institute of the Chemistry of Plant Substances (UZ)
- Kimyo International University in Tashkent (UZ)
Publication Details
- Journal
- Acta Crystallographica Section E Crystallographic Communications
- Published
- 2025-10-27
- DOI
- https://doi.org/10.1107/s205698902500934x
- Primary Topic
- Crystal structures of chemical compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Academy of Sciences Republic of Uzbekistan