The reaction between 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde and phenylhydrazine proceedsviacondensation to provide the title compound, C17H15ClN4, (I), rather thanviathe alternative routes of simple nucleophilic substitution or cyclocondensation. With the exception of the phenyl group bonded directly to the pyrazole ring, the non-H atoms of (I) are nearly coplanar, with an r.m.s. deviation of 0.058 Å. The molecules are linked intoC(7) chains by a single N—H...N hydrogen bond, and the chains are linked by π–π stacking interactions to form sheets.
5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde 与苯肼发生缩合反应,生成了标题化合物 C17H15ClN4,(I),而不是简单的亲核取代或环化反应。除了直接与吡唑环结合的苯基外,(I) 的非 H 原子几乎共面,r.m.s. 偏差为 0.058 Å。分子通过一个 N-H...N氢键连接成C(7)链,链之间通过π-π堆积相互作用连接成片状。