Category: 934-48-5

Volatile compounds formed by thermal degradation of ascidian tunic carotenoids was written by Choi, Byeong-Dae;Ho, Chi-Tang. And the article was included in Han’guk Nonghwa Hakhoechi in 1997.Electric Literature of C6H9N3O This article mentions the following:

As part of investigation for utilization of ascidian tunic carotenoids as a food color additives, the authors attempted to collect the volatile thermal degradation compounds from ascidian tunic carotenoids. Compounds were extracted by simultaneous distillation and extraction/concentration apparatus and analyzed by gas chromatog. and mass spectrometry. A total of 63 compounds were identified and some of them arose by thermal degradation They included 1,3,5-trimethylbenzene, 3,5,5-trimethyl-3-cyclohexen-1-ol, 3,5,5-trimethyl-3-cyclohexen-1-one, 1,1,2,3-tetramethyl-2-cyclohexen-5-ol, 1,1,2,3-tetramethyl-2-cyclohexen-5-one, 2,3,4,4-tetramethyl-6-hydroxy-2-cyclohexene-1-one, 1,2,3,8-tetrahydro-3,3,6-trimethyl-1-naphthol, dihydroacetinidolide, β-ionone, 2-(1,1,5-trimethyl-3-hydroxy-5-cyclohexen-6-yl)-1-tolylethene, and 2,6-dimethyl-8-(1,1,5-trimethyl-3-hydroxy-5-cyclohexen-6-yl)-1,3,5-octatriene-7-yne. Proposed mechanisms of formation of some compounds as thermal degradation products of ascidian tunic carotenoids are provided. In the experiment, the researchers used many compounds, for example, 3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5Electric Literature of C6H9N3O).

3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5) belongs to pyrazole derivatives. Pyrazole is a weak base, with pKb 11.5 (pKa of the conjugated acid 2.49 at 25 °C).Pyrazole used as a ligand to prepare organometallic compounds. Pyrazole rings have been used as core components of several leading non-steroidal anti-inflammatory drugs (NSAIDs) and antihypertensive drugs. It has also been found to be useful as a bifunctional ligand for metal catalysis.Electric Literature of C6H9N3O

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Crystal structure of hexakis(μ₂-chloro)-μ₄-oxo-tetrakis((3,5-dimethylpyrazole)copper(II)) ethanol tetrasolvate, Cu₄OCl₆(C₅H₈N₂)₄·4C₂H₅OH was written by Jacimovic, Zeljko K.;Leovac, Vukadin M.;Tomic, Zoran D.. And the article was included in Zeitschrift fuer Kristallographie – New Crystal Structures in 2007.COA of Formula: C6H9N3O This article mentions the following:

Crystallog. data and at. coordinates are given. In the tetranuclear copper(II) complex Cu₄OCl₆L₄ where L = 3,5-dimethylpyrazole, four copper atoms [separated by 3.070(2) – 3.198(3) Å] encapsulate central oxygen atom in a distorted tetrahedral arrangement, with the Cu-O bond lengths of 1.903(6) – 1.914(6) Å, and the Cu-O-Cu angles of 107.3(3) – 114.3(3)°. Between each pair of copper atoms, there is a bridging chlorine atom with Cu-Cl1 distances of 2.340(4) – 2.509(3) Å. Closer inspection of the Cu-Cl distances reveals grouping of values around every copper atom in two ‘short’ and one ‘long’ distances. Average values are 2.375 Å and 2.459 Å for eight short and six long Cu-Cl distances, resp. Copper coordination sphere is completed by the 3,5-dimethylpyrazole ligand with Cu-N distances of 1.952(7) – 1.957(9) Å. Coordination polyhedron can be described as a slightly distorted trigonal bipyramid where three chlorine atoms lie in the equatorial positions while the central oxygen and the pyridine nitrogen from pyrazolyl ligand are placed at the axial sites. The structure in general is analogous to the structures of previously described tetranuclear complexes of copper [Cu₄(O)(u-X)₆L₄], where L = ligand containing N, O or P donor and X is halogen. Direct contact between the tetranuclear units is achieved by the N-H… Cl hydrogen bonds. In the experiment, the researchers used many compounds, for example, 3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5COA of Formula: C6H9N3O).

3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5) belongs to pyrazole derivatives. Pyrazoles, a five-membered heterocycle containing two adjacent nitrogen atoms, are the core structures found in a number of molecules that possess a wide range of pharmaceutical and agricultural activities. The presence of both electronegative nitrogen atoms in the pyrazole ring reduces the electron density of the C3- and C5-positions leaving electron density of C4-position unaltered. Thus the C4-position is vulnerable to electrophilic attack. The C3 electrophilic-position may undergo deprotonation in the presence of a strong base leading to ring opening.COA of Formula: C6H9N3O

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Preparation and structure of cobalt(II) complexes with 3,5-dimethylpyrazole was written by Safronova, L. A.;Komyagin, N. T.;Yanovskii, A. I.;Struchkov, Yu. T.;Shebaldova, A. D.. And the article was included in Koordinatsionnaya Khimiya in 1987.Reference of 934-48-5 This article mentions the following:

CoCl₂ reacted with 3,5-dimethylpyrazolylcarbamide in iso-PrOH with heating to give CoL₂Cl₂ (L = 3,5-dimethylpyrazole). CoL₂Cl₂ is monoclinic, space group C2/c, with a 15.011(1), b 8.2732(6), c 24.053(2) 鑴? 灏?96.045(7)鎺? Z = 8, R = 0.041, R_w = 0.054. CoL₂Cl₂ has a distorted tetrahedral structure in which L is monodentate. CoL₂Cl₂ was also characterized by IR and ¹³C NMR spectra. In the experiment, the researchers used many compounds, for example, 3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5Reference of 934-48-5).

3,5-Dimethyl-1H-pyrazole-1-carboxamide (cas: 934-48-5) belongs to pyrazole derivatives. The 1H-pyrazole provides an excellent means by which to provide the requisite hydrogen bond acceptor閳ユ徆onor motifs, whether as a monocyclic ring or as a fused indazole ring. Pyrazole rings have been used as core components of several leading non-steroidal anti-inflammatory drugs (NSAIDs) and antihypertensive drugs. It has also been found to be useful as a bifunctional ligand for metal catalysis.Reference of 934-48-5

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics