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A10253 3-Methyl-2-pyrazolin-5-one, 98+%

CAS Number
108-26-9
Synonyms
2,4-Dihydro-5-methyl-3H-pyrazol-3-one

Stock No. Size Price ($) Quantity Availability
A10253-09 10g 33.80
A10253-18 50g 123.00
A10253-30 250g 427.00
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3-Methyl-2-pyrazolin-5-one, 98+%

MDL
MFCD00020699
EINECS
203-565-3

Chemical Properties

Formula
C4H6N2O
Formula Weight
98.11
Melting point
220-224°
Storage & Sensitivity
Ambient temperatures.
Solubility
Slightly soluble in ethanol.

Applications

3-Methyl-2-pyrazolin-5-one is used in the preparation of spirocyclic [indole-3,4'-pyrano[2,3-c]pyrazole] by reacting with isatins and malonitrile in the presence of sodium bromide as electrolyte.

Notes

Incompatible with oxidizing agents.

Literature References

Vereshchagin, A. N.; Elinson, M. N.; Dorofeeva, E. O.; Nasybullin, R. F.; Bushmarinov, I. S.; Goloveshkin, A. S.; Egorov, M. P. Electrocatalytic cyclization of 3-(5-hydroxy-3-methylpyrazol-4-yl)-3-arylpropionitriles: ‘one-pot’ simple fast and efficient way to substituted spirocyclopropylpyrazolones. Electrochim. Acta 2015, 165, 116-121.

Wang, H. X.; Wu, L. L.; Wang, Y. M.; Zhou, Z. H. Organocatalyzed asymmetric tandem Michael-cyclization reaction of 4-benzylidene-3-methylpyrazol-5-ones and malononitrile: stereocontrolled construction of pyrano[2,3-c]pyrazole scaffold. RSC Adv. 2015, 5 (53), 42836-42842.

Other References

Harmonized Tariff Code
2933.19
TSCA
Yes
RTECS
UQ9451500

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