3,4-DIMETHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE

  • Name: 3,4-DIMETHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
  • CAS: 6628-22-4
  • Purity: 99%
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Details

China cas 6628-22-4 manufacturer wholesale 3,4-DIMETHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE at affordable price

  • Molecular Formula: C5H8N2O
  • Molecular Weight: 112.131
  • Appearance/Colour: white solid 
  • Melting Point: 269-271 °C 
  • Refractive Index: 1.579 
  • Boiling Point: 307.5 °C at 760 mmHg 
  • Flash Point: 139.7 °C 
  • PSA： 41.46000 
  • Density: 1.052 g/cm3 
  • LogP: -0.10740 

3,4-DIMETHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE(Cas 6628-22-4) Usage

InChI:InChI=1/C5H8N2O/c1-3-4(2)6-7-5(3)8/h3H,1-2H3,(H,7,8)

6628-22-4 Relevant articles

Catch-and-release of HNO with pyrazolones

Guthrie, Daryl A.,Ho, Anthony,Takahashi, Cyrus G.,Collins, Anthony,Morris, Matthew,Toscano, John P.

, p. 1338 - 1348 (2015/02/19)

A new and versatile class of HNO donors,...

N,N-dialkyl-N′-chlorosulfonyl chloroformamidines in heterocyclic synthesis. Part VIII. Novel pyrazolo-fused oxathiadiazines and thiatriazoles

Forsyth, Craig M.,Francis, Craig L.,Jahangiri, Saba,Liepa, Andris J.,Perkins, Michael V.,Young, Anna P.

scheme or table, p. 659 - 668 (2010/09/05)

N,N-dialkyl-N′-chlorosulfonyl chloroform...

Tautomerism-dependent ring construction of N-heterocyclic compounds from the reactions of 1-alkynyl fischer carbene complexes and substituted pyrazolinones

Zheng, Zhaoyan,Yu, Zhengkun,Luo, Ning,Han, Xiuwen

, p. 9695 - 9700 (2007/10/03)

Four types of N-heterocyclic ring system...

NEW TYPE OF CONDENSATION OF 5-PYRAZOLONES UNSUBSTITUTED AT THE NITROGEN

Grandberg, I. I.,Nam, N. L.

, p. 540 - 543 (2007/10/02)

1,5-Tripyrazolylenes were prepared with ...

6628-22-4 Process route

2-acetylpropanoic acid ethyl ester
609-14-3

2-acetylpropanoic acid ethyl ester

3,4-dimethyl-4-chloro-2-pyrazolin-5-one
6628-22-4

3,4-dimethyl-4-chloro-2-pyrazolin-5-one

Conditions
Conditions Yield
With hydrazine hydrate; acetic acid; In methanol; at 100 ℃; for 1h;
64%
With hydrazine; In ethanol; for 1h; Heating;
With hydrazine; In ethanol; Heating;
3,4-dimethyl-4-chloro-2-pyrazolin-5-one
68654-32-0

3,4-dimethyl-4-chloro-2-pyrazolin-5-one

3,4-dimethyl-4-chloro-2-pyrazolin-5-one
6628-22-4

3,4-dimethyl-4-chloro-2-pyrazolin-5-one

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: 12.5 percent / hydrated potassium carbonate / CH2 Cl2 / 12 h / Ambient temperature
2: 45 percent / 10percent HCl / 15 h / Heating
With hydrogenchloride; potassium carbonate; In dichloromethane;
Multi-step reaction with 2 steps
1: 10.3 percent / hydrated potassium carbonate / 72 h
2: 45 percent / 10percent HCl / 15 h / Heating
With hydrogenchloride; potassium carbonate;
Multi-step reaction with 2 steps
1: 1 percent / i-Pr2 NEt / CH2 Cl2 / Ambient temperature
2: 45 percent / 10percent HCl / 15 h / Heating
With hydrogenchloride; N-ethyl-N,N-diisopropylamine; In dichloromethane;

6628-22-4 Upstream products

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    2-acetylpropanoic acid ethyl ester

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  • 17094-21-2
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    2-methyl-acetoacetic acid methyl ester

  • 68654-32-0
    68654-32-0

    3,4-dimethyl-4-chloro-2-pyrazolin-5-one

6628-22-4 Downstream products

  • 68654-32-0
    68654-32-0

    3,4-dimethyl-4-chloro-2-pyrazolin-5-one

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    71418-44-5

    monobromobimane

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    68654-25-1

    syn-4,6-bis(bromomethyl)-3,7-dimethyl-1,5-diazabicyclo <3.3.0> octa-3,6-diene-2,8-dione

  • 74235-78-2
    74235-78-2

    9,10-dioxa-anti-(bromomethyl,methyl)(methyl,methyl)bimane

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