Synthesis and reactions of 4??isopropylidene??1??aryl??3??methyl??2??pyrazolin??5??ones

J Deruiter, DA Carter, WS Arledge…

Index: Journal of Heterocyclic Chemistry, , vol. 24, # 1 p. 149 - 153

Full Text: HTML

Citation Number: 28

Abstract

... to convert the nitrile 21 to bicyclic heterocycles, and the epoxide 22 to novel 6-membered heterocycles. ... REFERENCES AND NOTES [1] RH Wiley and P. Wiley, in "Heterocyclic Compounds", Vol 20, A. Weissberger ... W. Asker, A. Fathy, A. Shabby, SA Khattab and Z. E. Selim, J. Am ...

 Related Synthetic Route
N/A Structure

22123-17-7

N/A

N/A Structure

4426-72-6

N/A

~%

edaravone Structure

89-25-8

edaravone

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...

N/A Structure

22123-17-7

N/A

2,4-Dinitrophenylhydrazine Structure

119-26-6

2,4-Dinitrophen...

~%

edaravone Structure

89-25-8

edaravone

Acetone 2,4-(dinitrophenyl)hydrazone Structure

1567-89-1

Acetone 2,4-(di...

N/A Structure

22123-17-7

N/A

~%

edaravone Structure

89-25-8

edaravone

Acetone Structure

67-64-1

Acetone

5-Methyl-4-(1-methylethylidene)-2-(4'-chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

108161-18-8

5-Methyl-4-(1-m...

N/A Structure

4426-72-6

N/A

~%

1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One Structure

13024-90-3

1-(4-Chlorophen...

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...

5-Methyl-4-(1-methylethylidene)-2-(4'-chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

108161-18-8

5-Methyl-4-(1-m...

2,4-Dinitrophenylhydrazine Structure

119-26-6

2,4-Dinitrophen...

~%

1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One Structure

13024-90-3

1-(4-Chlorophen...

Acetone 2,4-(dinitrophenyl)hydrazone Structure

1567-89-1

Acetone 2,4-(di...

5-Methyl-4-(1-methylethylidene)-2-(4'-chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

108161-18-8

5-Methyl-4-(1-m...

~%

1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One Structure

13024-90-3

1-(4-Chlorophen...

Acetone Structure

67-64-1

Acetone

Ethyl acetoacetate Structure

141-97-9

Ethyl acetoacetate

4-Nitropheylhydrazine Structure

100-16-3

4-Nitropheylhyd...

~71%

1-(4-nitrophenyl)-3-methyl-5-pyrazolone Structure

6402-09-1

1-(4-nitropheny...

5-Methyl-4-(1-methylethylidene)-2-(4'-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

76973-30-3

5-Methyl-4-(1-m...

N/A Structure

4426-72-6

N/A

~%

1-(4-nitrophenyl)-3-methyl-5-pyrazolone Structure

6402-09-1

1-(4-nitropheny...

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...

5-Methyl-4-(1-methylethylidene)-2-(4'-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

76973-30-3

5-Methyl-4-(1-m...

2,4-Dinitrophenylhydrazine Structure

119-26-6

2,4-Dinitrophen...

~%

1-(4-nitrophenyl)-3-methyl-5-pyrazolone Structure

6402-09-1

1-(4-nitropheny...

Acetone 2,4-(dinitrophenyl)hydrazone Structure

1567-89-1

Acetone 2,4-(di...

5-Methyl-4-(1-methylethylidene)-2-(4'-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

76973-30-3

5-Methyl-4-(1-m...

~%

Acetone Structure

67-64-1

Acetone

1-(4-nitrophenyl)-3-methyl-5-pyrazolone Structure

6402-09-1

1-(4-nitropheny...

N/A Structure

22123-17-7

N/A

N/A Structure

4426-72-6

N/A

~%

edaravone Structure

89-25-8

edaravone

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...

5-Methyl-4-(1-methylethylidene)-2-(4'-chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

108161-18-8

5-Methyl-4-(1-m...

N/A Structure

4426-72-6

N/A

~%

1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One Structure

13024-90-3

1-(4-Chlorophen...

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...

5-Methyl-4-(1-methylethylidene)-2-(4'-methoxyphenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

85921-22-8

5-Methyl-4-(1-m...

N/A Structure

4426-72-6

N/A

~%

1-(4-Methoxyphenyl)-3-Methyl-1H-Pyrazol-5(4H)-One Structure

60798-06-3

1-(4-Methoxyphe...

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...

5-Methyl-4-(1-methylethylidene)-2-(4'-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one Structure

76973-30-3

5-Methyl-4-(1-m...

N/A Structure

4426-72-6

N/A

~%

1-(4-nitrophenyl)-3-methyl-5-pyrazolone Structure

6402-09-1

1-(4-nitropheny...

Acetone Semicarbazone Structure

110-20-3

Acetone Semicar...


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