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A10157 3,5-Dimethyl-1H-pyrazole, 99%

Numéro de CAS
67-51-6
Synonymes

Stock No. Conditionnement Prix ($) Quantité Disponibilité
A10157-18 50g 30,80
A10157-30 250g 125,00
A10157-0B 1000g 277,00
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3,5-Dimethyl-1H-pyrazole, 99%

MDL
MFCD00005243
EINECS
200-657-5

Propriétés chimiques

Formule
C5H8N2
Poids moleculaire
96.13
Point de fusion
105-108°
Point d'ébullition
218°
Storage & Sensitivity
Ambient temperatures.
Solubilité
Soluble in water, methanol 0.1 g/mL.

Applications

3,5-Dimethyl-1H-pyrazole is combined with Chromium(VI)­ oxide, is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds. It reacts with malonic esters gives a family of cross-conjugated monomeric betaines. It is a common reagent for the preparation of pyrazolato ligated complexes. It is also used to prepare N-1-substituted derivatives having antibacterial activity.

Notes

Store away from oxidizing agents. Store in a cool, dry condition in well sealed containers.

Références bibliographiques

Hasnae Bendaha; Lisa Yu; Rachid Touzani; Rachid Souane; Guri Giaever; Corey Nislow; Charles Boone; Sghir El Kadiri; Grant W. Brown; Mohammed Bellaoui. New azole antifungal agents with novel modes of action: Synthesis and biological studies of new tridentate ligands based on pyrazole and triazole. European Journal of Medicinal Chemistry. 2011, 46 (9), 4117-4124.

F Castro González; A Martínez Garza. Comparative study of analgesics. Practica odontologica. 1986, 7 (2), 30-34.

The combination with Chromium(VI)­ oxide, 12522 is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds in very high yields: Tetrahedron Lett., 4499 (1973). With Pyridinium chlorochromate, A11752, allylic alcohols are oxidized selectively in the presence of secondary alcohols: J. Org. Chem., 48, 4766 (1983).

Reaction of pyrazoles with malonic esters gives a family of cross-conjugated monomeric betaines: Synthesis, 629 (1989):

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H302-H361fd-H373

Harmful if swallowed. Suspected of damaging fertility. Suspected of damaging the unborn child. May cause damage to organs through prolonged or repeated exposure.

Mentions de prudence: P201-P202-P260-P264b-P270-P281-P301+P312-P308+P313-P330-P501c

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use personal protective equipment as required. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF exposed or concerned: Get medical advice/attention. Rinse mouth. Dispose of contents/ container to an approved waste disposal plant

Autres références

Beilstein
106325
Code tarifaire harmonisé
2933.19
TSCA
Yes
RTECS
UQ6477600

Recommandé

Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux

Catalyseurs

Analytique et matériel de laboratoire