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| CAS No.: | 67305-24-2 |
|---|---|
| Name: | 5-METHYL-4-ISOXAZOLECARBONYL CHLORIDE |
| Article Data: | 27 |
| Molecular Structure: | |
|
|
|
| Formula: | C5H4 Cl N O2 |
| Molecular Weight: | 145.545 |
| Synonyms: | 5-Methyl-4-isoxazolecarbonylchloride; 5-Methyl-4-isoxazolecarboxylic acid chloride |
| Density: | 1.345g/cm3 |
| Boiling Point: | 78 °C |
| Flash Point: | 91.7°C |
| Hazard Symbols: |
 C, Xi
|
| PSA: | 43.10000 |
| LogP: | 1.36200 |
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- 99170-93-1N-Methyl-2-oxazolamine
- 717878-06-31-(4-fluorophenyl)-4-nitro-1H-imidazole
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- 894852-01-87-BROMO-2,2-DIMETHYL-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE
- 42831-50-5
5-methyl-1,2-oxazole-4-carboxylic acid
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
| Conditions | Yield |
|---|---|
| With thionyl chloride In toluene | 99% |
| With thionyl chloride at 70℃; for 1h; | 96% |
| With thionyl chloride at 50℃; | 96% |
- 51135-73-0
5-methylisoxazole-4-carboxylic acid ethyl ester
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 270 g / conc. HCl / acetic acid; H2O / 10 h / Heating 2: 47 percent / thionyl chloride / 3 h / Heating View Scheme | |
| Multi-step reaction with 2 steps 1: hydrogenchloride 2: thionyl chloride / Reflux View Scheme | |
| Multi-step reaction with 2 steps 1: sulfuric acid / water / 20 h / 20 °C / Reflux 2: thionyl chloride; N,N-dimethyl-formamide / dichloromethane / 12 h / Reflux View Scheme | |
| Multi-step reaction with 2 steps 1: hydrogenchloride 2: thionyl chloride / N-methyl-acetamide View Scheme |
- 3788-94-1
2-ethoxymethylene-3-oxobutanoic acid ethyl ester
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: 350 g / hydroxylamine hydrochloride, sodium acetate trihydrate / ethanol; H2O / 0 °C 2: 270 g / conc. HCl / acetic acid; H2O / 10 h / Heating 3: 47 percent / thionyl chloride / 3 h / Heating View Scheme | |
| Multi-step reaction with 3 steps 1: hydroxylamine hydrochloride 2: hydrogenchloride 3: thionyl chloride / Reflux View Scheme | |
| Multi-step reaction with 3 steps 1: hydroxylamine hydrochloride; sodium acetate / methanol; water / 0 - 20 °C 2: sulfuric acid / water / 20 h / 20 °C / Reflux 3: thionyl chloride; N,N-dimethyl-formamide / dichloromethane / 12 h / Reflux View Scheme |
- 455-14-1
4-trifluoromethylphenylamine
A
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
B
- 75706-12-6
Leflunomide
| Conditions | Yield |
|---|---|
| With sodium hydrogencarbonate In water |
- 42831-50-5
5-methyl-1,2-oxazole-4-carboxylic acid
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
| Conditions | Yield |
|---|---|
| With thionyl chloride |
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
- 28236-62-6
2,4-dichlorophenoxyacetylhydrazine
- 1417515-26-4
N'-(2-(2,4-dichlorophenoxy)acetyl)-5-methylisoxazole-4-carbohydrazide
| Conditions | Yield |
|---|---|
| In tetrahydrofuran for 0.166667h; Time; Reagent/catalyst; Temperature; Microwave irradiation; | 99% |
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
- 636992-54-6
3-amino-5-bromo-benzofuran-2-carbonitrile
- 803684-89-1
N-(5-bromo-2-cyanobenzofuran-3-yl)-5-methylisoxazole-4-carboxamide
| Conditions | Yield |
|---|---|
| In tetrahydrofuran at 65℃; for 2h; | 96.6% |
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
- 455-14-1
4-trifluoromethylphenylamine
- 75706-12-6
Leflunomide
| Conditions | Yield |
|---|---|
| In diethyl ether for 0.5h; Ambient temperature; | 93% |
| With sodium hydrogencarbonate In N,N-dimethyl acetamide; toluene | 86% |
| With sodium hydrogencarbonate In water; toluene at 20 - 60℃; for 18h; | 43% |
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
- 62208-67-7
3-amino[1]benzofuran-2-carbonitrile
- 803684-90-4
N-(2-cyanobenzofuran-3-yl)-5-methylisoxazole-4-carboxamide
| Conditions | Yield |
|---|---|
| In tetrahydrofuran at 65℃; for 2h; | 90.9% |
- 67305-24-2
5-methylisoxazole-4-carbonyl chloride
- 2002-03-1
2-amino-5-phenyl-1,3,4-thiadiazole
- 1023696-89-0
N-(5-phenyl-1,3,4-thiadiazole-2-yl)-N'-(5-methylisoxazoyl)thiourea
| Conditions | Yield |
|---|---|
| Stage #1: ammonium thiocyanate; 5-methylisoxazole-4-carbonyl chloride; polyethylene glycol-600 In dichloromethane at 20℃; for 0.333333h; Irradiation; Stage #2: 2-amino-5-phenyl-1,3,4-thiadiazole In dichloromethane for 0.5h; Irradiation; Further stages.; | 90.1% |
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Chemistry
IUPAC Name: 5-methyl-1,2-oxazole-4-carbonyl chloride
Empirical Formula: C5H4ClNO2
Molecular Weight: 145.5438g/mol
Structure of 4-Isoxazolecarbonylchloride, 5-methyl- (CAS NO.67305-24-2):
Index of Refraction: 1.498
Molar Refractivity: 31.71 cm3
Molar Volume: 108.1 cm3
Polarizability: 12.57×10-24cm3
Surface Tension: 42.9 dyne/cm
Density: 1.345 g/cm3
Flash Point: 91.7 °C
Enthalpy of Vaporization: 46.46 kJ/mol
Boiling Point: 228 °C at 760 mmHg
Vapour Pressure: 0.0751 mmHg at 25°C
Product Categories: ACIDHALIDE
Canonical SMILES: CC1=C(C=NO1)C(=O)Cl
InChI: InChI=1S/C5H4ClNO2/c1-3-4(5(6)8)2-7-9-3/h2H,1H3
InChIKey: ZKAQPVQEYCFRTK-UHFFFAOYSA-N
Safety Profile
Hazard Codes: 
C,
Xi
Hazard Note: Corrosive
HazardClass: IRRITANT
Specification
4-Isoxazolecarbonylchloride, 5-methyl- , its cas register number is 67305-24-2. It also can be called 5-Methyl-1,2-oxazole-4-carbonyl chloride ; 5-Methyl-4-isoxazolecarbonyl chloride ; 5-Methyl-isoxazole-4-carbonyl chloride ; 5-Methylisoxazole-4-carbonyl chloride 97% .