The structure of 4-chloro-1 H -pyrazole, C 3 ClN 2 , at 170 K has orthorhombic ( Pnma ) symmetry and is isostructural to its bromo analogue. Data were collected low temperature since -pyrazole sublimes when subjected the localized heat produced by X-rays. displays intermolecular N—H...N hydrogen bonding packing features a trimeric molecular assembly bisected mirror plane m normal b running thro...

Herein, new substituted ligands based on pyrazole (L1–L4) were synthesized via a one-step by condensing (1H-pyrazole-1-yl) methanol with different primary amine compounds. The present work utilized the catalytic properties of in situ complexes formed these various copper (II) salts viz. Cu(CH3COO)2, CuSO4, CuCl2, and Cu(NO3)2 for oxidation catechol to o-quinone. studies showed that activities d...

In the title compound, C(20)H(18)N(2)O, the pyrazole ring adopts a planar conformation. The C-N bond lengths in the pyrazole ring are shorter than a standard C-N single bond (1.443 Å), but longer than a standard double bond (1.269 Å), indicating electron delocalization. The propenal group assumes an extended conformation. Inter-molecular C-H⋯O hydrogen bonds connect mol-ecules into cyclic centr...

Pyrazole-containing compounds represent one of the most influential families N-heterocycles due to their proven applicability and versatility as synthetic intermediates in preparing relevant chemicals biological, physical-chemical, material science, industrial fields. Therefore, synthesizing structurally diverse pyrazole derivatives is highly desirable, various researchers continue focus on thi...

PURPOSE To synthesize a new series of 5-substituted-3-methylsulfanyl-1H-pyrazole-4-carboxylic acid ethyl esters for their analgesic and anti-inflammatory activity. METHODS The title compound synthesized by reacting the amino group of 5-amino-3-methylsulfanyl-1H-pyrazole-4-carboxylic acid ethyl ester with acid anhydrides, acid chlorides and phenyl dithiocarbamates. The synthesized compounds we...

The title compound, C(9)H(12)N(4)O(4)S, was proven to be the product of the reaction of methyl 5-amino-1H-pyrazole-3-carboxyl-ate with ethyl isothio-cyanato-carbonate. All non-H atoms of the mol-ecule are planar, the mean deviation from the least squares plane being 0.048 Å. The intra-molecular N-H⋯O bond involving the NH-group, which links the thio-urea and pyrazole fragments, closes a six-mem...

In the title pyrazole compound, C(22)H(17)N(3)O(4), an intra-molecular C-H⋯O contact generates a seven-membered ring, producing an S(7) ring motif. The furan and pyrazole rings are essentially planar [maximum deviations = 0.004 (1) and 0.004 (2) Å, respectively] and are almost coplanar, making a dihedral angle of 3.75 (10)°. One of the methyl-phenyl groups is inclined to the pyrazole ring, as i...

Microdochium patch is a destructive disease of amenity turfgrass caused by the fungus nivale (Fries) Samuels & I.C. Hallett. The succinate dehydrogenase (SDHI) class fungicides relatively new and their efficacy against M. remains unclear. Fluxapyroxad (3-(difluoromethyl)-1-methyl-N-[2-(3,4,5-trifluorophenyl)phenyl]pyrazole-4-carboxamide), penthiopyrad (1-methyl-N-[2-(4-methylpentan-2-yl)thiophe...