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formaldehyd
4-amino-2,3-dimethyl-1-phenylpyrazolin-5-one
dimethyl sulfate
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
With sodium carbonate at 40℃; Neutralisieren und Erhitzen mit NaHSO3; |
4-methylaminoantipyrine
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
With sodium hydrogensulfite dann Behandeln mit Formaldehyd-Loesung und anschliessendem Erwaermen; |
3-oxo-N-o-tolylbutanamide
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
With NH3 In ethanol byproducts: H2O, HCl; addn. of ligands to soln. of co-salt (stirring), refluxing (1 h, 80°C), cooling, neutralization (NH3); filtration, washing (EtOH), drying (vac.); elem. anal.; | 69% |
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
N-phenylacetoacetamide
Conditions | Yield |
---|---|
With NH3 In ethanol byproducts: H2O, HCl; addn. of ligands to soln. of co-salt (stirring), refluxing (1 h, 80°C), cooling, neutralization (NH3); filtration, washing (EtOH), drying (vac.); elem. anal.; | 68% |
2'-methoxyacetoacetanilide
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
With NH3 In ethanol byproducts: H2O, HCl; addn. of ligands to soln. of co-salt (stirring), refluxing (1 h, 80°C), cooling, neutralization (NH3); filtration, washing (EtOH), drying (vac.); elem. anal.; | 67% |
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
N-phenylacetoacetamide
Conditions | Yield |
---|---|
In ethanol mixing stoichiometric quantities of HgCl2, acetoacetanilide and pyrazoline-5-one derivative in ethanol, refluxing for 15-20 min over a hot plate at 80°C to yield a transparent soln., further refluxing for 1-3 h, pptn.; filtn. by suction, washing several times with EtOH, drying in a desiccator over anhyd. CaCl2 at room temp. to a constant weight, elem. anal.; | 60% |
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
In water; acetic acid byproducts: CH3COOK, HCN; aq. acetic acid; addn. of aq. soln. of ligand to aq. soln. of K3(Cr(NO)(CN)5), pptn. (heating, 80°C, 35 min), liberating of HCN (purged with CO2, 3 h); sepn. (filtration off), washing (dil. CH3COOH, water), drying (room temp., vac., to const. wt.); elem. anal.; | 58% |
o-hydroxyacetophenone
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
In ethanol mixing stoichiometric quantities of HgCl2, o-hydroxyacetophenone and pyrazoline-5-one derivative in ethanol, refluxing for 15-20 min over a hot plate at 80°C to yield a transparent soln., further refluxing for 1-3 h, pptn.; filtn. by suction, washing several times with EtOH, drying in a desiccator over anhyd. CaCl2 at room temp. to a constant weight, elem. anal.; | 58% |
4-benzoyloxime-3-methyl-1-phenyl-2-pyrazoline-5-one
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
Conditions | Yield |
---|---|
In ethanol; water mixt. of aq. soln. of NiCl2 and ethanolic soln. of ligands refluxed for 30-60 min; ppt. filtered by suction, washed (ethanol), dried in vac.; elem. anal.; | 56% |
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one
potassium succinimide
Conditions | Yield |
---|---|
In ethanol; water to mixt. of aq. soln. of VOSO4 and KN(C(O)CH2)2 ethanolic soln. of pyrazoline derivative added, soln. refluxed for 30-40 min at 80 °C, stand for 30 min; ppt. filtered, washed (1:1 H2O/C2H5OH), dried (dessicator over anhydrousCaCl2); elem. anal.; | 56% |
Molecular Formula of Analgin (CAS NO.5907-38-0): C13H18N3NaO5S
Molecular Weight: 351.35
storage temp.: 2-8 °C
Appearance: White or light yellow crystalline powder, odorless, tiny bitter
Structure of Analgin (CAS NO.5907-38-0):
IUPAC Name: Sodium[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-methylamino]methanesulfonate
Analgin (CAS NO.5907-38-0) is antipyretic analgesics of pyrazolones. It is indicated for treatment diseases caused by high fever and various pain. It is also indicated in fever, headache, rheumatic pain, neuralgia and dysmenorrheal ect.
Analgin , its cas register number is 5907-38-0. It also can be called Dipyron ; Metamizol ; Methapyrone ; Sulpyrine ; and Sodium [(1,5-dimethyl-3-oxo-2-phenyl-pyrazol-4-yl)-methyl-amino]methanesulfonate .