2-tert-butyl 4-ethyl 3,5-dimethyl-1H-pyrrole-2,4-dicarboxylate
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With hydrogenchloride; water In ethanol at 65℃; for 4h; Inert atmosphere; | 99% |
With hydrogenchloride; water In ethanol at 70℃; for 3h; | 91% |
With hydrogenchloride In ethanol; water at 65℃; for 1h; | 89% |
3,5-dimethyl-1H-pyrrole-2,4-dicarboxylic acid 4-ethyl ester
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Temperature; Inert atmosphere; | 98.5% |
at 200℃; for 0.0833333h; Temperature; Inert atmosphere; | 98.5% |
Heating; | 80% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.0833333h; Inert atmosphere; | 89% |
Multi-step reaction with 2 steps 1: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C 2: potassium tert-butylate / tetrahydrofuran / 0.08 h / Reflux View Scheme | |
Multi-step reaction with 2 steps 1: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C 2: potassium tert-butylate / tetrahydrofuran / 0.08 h / Reflux View Scheme |
2,4-dimethylpyrrole-1,3-dicarboxylic acid 1-tert-butyl 3-ethyl ester
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran for 0.0833333h; Reflux; | 87% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); 2,4,6-trimethylphenyl bromide; potassium carbonate In N,N-dimethyl-formamide at 150℃; for 3h; | 76% |
With tetrakis(triphenylphosphine) palladium(0); 2,4,6-trimethylphenyl bromide; potassium carbonate In N,N-dimethyl-formamide at 150℃; for 3h; | 76% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran for 0.0833333h; Reflux; | 73% |
methyllithium
ethyl 3-((N-methoxy-N-methylcarbamoyl)methylamino)crotonate
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
In tetrahydrofuran at -10℃; for 1h; | 62% |
(E)-4-diazo-3-methylbut-2-enoic acid ethyl ester
acetonitrile
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With silver hexafluoroantimonate In dichloromethane at 20℃; for 1h; Inert atmosphere; | 15% |
diethyl 2,4-dimethylpyrrole-3,5-dicarboxylate
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With piperidine at 250℃; unter Wasserstoff; | |
With sodium hydroxide Erhitzen des bei 100grad getrockneten Reaktionsprodukts mit Glycerin; | |
Multi-step reaction with 2 steps 1: water; potassium hydroxide / ethanol / 10 h / 50 - 60 °C 2: Inert atmosphere View Scheme |
3,5-dimethyl-1H-pyrrole-2,4-dicarboxylic acid 2-benzyl ester 4-ethyl ester
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With methanol; nickel at 110 - 120℃; under 73550.8 Torr; Hydrogenation; |
A
2,3,4-trimethyl-1H-pyrrole
B
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
bei der trockenen Destillation; |
(Z)-2-oxopropanal oxime
ethyl acetoacetate
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With sodium hydroxide; sodium dithionite |
ethyl acetoacetate
propanone 1-oxime
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With acetic acid; zinc | |
Behandlung mit Zinkstaub in verd. Essigsaeure; |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
beim Erhitzen ueber den Schmelzpunkt; |
ethyl acetoacetate
A
2,4-dimethyl-1H-pyrrole-3-carboxylic acid
B
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With sodium hydroxide |
ammonia
ethyl acetoacetate
chloroacetone
A
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
B
2,5-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84 percent / molecular sieves 4 Angstroem / tetrahydrofuran / 168 h / 20 °C 2: 76 percent / Pd(PPh3)4; K2CO3; mesityl bromide / dimethylformamide / 3 h / 150 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84 percent / 4 Angstroem molecular sieves / tetrahydrofuran / 168 h / Ambient temperature 2: 76 percent / 2 molpercent Pd(PPh3)4, mesityl bromide, potassium carbonate / dimethylformamide / 3 h / 150 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: acetic acid; aqueous NaNO2 / Erwaermen des Reaktionsgemisches mit Acetessigsaeure-aethylester, Zink-Pulver und Essigsaeure 2: Raney nickel; methanol / 110 - 120 °C / 73550.8 Torr / Hydrogenation View Scheme |
ethyl (E)-3-formyl-2-butenoate
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: dichloromethane / 0 °C / Inert atmosphere 2: triethylamine; 1,8-diazabicyclo[5.4.0]undec-7-ene / dichloromethane / 0.17 h / 0 °C / Inert atmosphere 3: silver hexafluoroantimonate / dichloromethane / 1 h / 20 °C / Inert atmosphere View Scheme |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine; 1,8-diazabicyclo[5.4.0]undec-7-ene / dichloromethane / 0.17 h / 0 °C / Inert atmosphere 2: silver hexafluoroantimonate / dichloromethane / 1 h / 20 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: acetic acid; sodium nitrite / 3.5 h / 10 - 25 °C 1.2: 2 h / 75 °C 2.1: hydrogenchloride / ethanol; water / 4 h / Reflux View Scheme | |
Multi-step reaction with 2 steps 1.1: sodium nitrite; acetic acid / 3.5 h / 8 - 20 °C 1.2: 2 h / Heating 2.1: hydrogenchloride; water / 4 h / 65 °C View Scheme | |
Multi-step reaction with 3 steps 1: neat (no solvent) / 2 h / 20 °C 2: dmap / acetonitrile / 3 h / 50 °C / Inert atmosphere 3: potassium tert-butylate / tetrahydrofuran / 0.08 h / 70 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 4 steps 1: neat (no solvent) / 2 h / 20 °C 2: dmap / acetonitrile / 3 h / 50 °C / Inert atmosphere 3: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C 4: potassium tert-butylate / tetrahydrofuran / 0.08 h / Reflux View Scheme | |
Multi-step reaction with 4 steps 1: neat (no solvent) / 2 h / 20 °C 2: dmap / acetonitrile / 3 h / 50 °C / Inert atmosphere 3: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C 4: potassium tert-butylate / tetrahydrofuran / 0.08 h / Reflux View Scheme |
ethyl acetoacetate
3-amino-2-propanol
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Stage #1: ethyl acetoacetate; 3-amino-2-propanol In tetrahydrofuran at 20℃; for 168h; Molecular sieve; Inert atmosphere; Stage #2: With tetrakis(triphenylphosphine) palladium(0); 2,4,6-trimethylphenyl bromide; potassium carbonate In N,N-dimethyl-formamide at 150℃; Inert atmosphere; |
C9H13NO2
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: dmap / acetonitrile / 3 h / 50 °C / Inert atmosphere 2: potassium tert-butylate / tetrahydrofuran / 0.08 h / 70 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1: dmap / acetonitrile / 3 h / 50 °C / Inert atmosphere 2: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C 3: potassium tert-butylate / tetrahydrofuran / 0.08 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1: dmap / acetonitrile / 3 h / 50 °C / Inert atmosphere 2: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C 3: potassium tert-butylate / tetrahydrofuran / 0.08 h / Reflux View Scheme |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
ethyl (5-formyl-2,4-dimethyl-1H-pyrrole)-3-carboxylate
Conditions | Yield |
---|---|
With hydrogenchloride In N-methyl-acetamide; (2S)-N-methyl-1-phenylpropan-2-amine hydrate; dichloromethane; trichlorophosphate | 100% |
With hydrogenchloride In N-methyl-acetamide; (2S)-N-methyl-1-phenylpropan-2-amine hydrate; dichloromethane; trichlorophosphate | 100% |
With hydrogenchloride In N-methyl-acetamide; (2S)-N-methyl-1-phenylpropan-2-amine hydrate; dichloromethane; trichlorophosphate | 100% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
N,N-dimethyl-formamide
ethyl (5-formyl-2,4-dimethyl-1H-pyrrole)-3-carboxylate
Conditions | Yield |
---|---|
Stage #1: 2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester; N,N-dimethyl-formamide With trichlorophosphate In dichloromethane for 1.5h; Vilsmeier-Haack Formylation; Reflux; Stage #2: With sodium hydroxide In dichloromethane; water for 0.5h; Vilsmeier-Haack Formylation; Reflux; | 100% |
Stage #1: 2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester; N,N-dimethyl-formamide With trichlorophosphate In dichloromethane Vilsmeier formylation; Inert atmosphere; Stage #2: With sodium hydrogencarbonate In water | 99% |
Stage #1: 2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester; N,N-dimethyl-formamide With trichlorophosphate In dichloromethane at 4℃; for 1.25h; Reflux; Stage #2: With hydrogenchloride In dichloromethane; water at 10℃; | 97% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
N,N-dimethyl-4-nitrobenzamide
2,4-dimethyl-5-(4-nitro-benzoyl)-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With trichlorophosphate In 1,2-dichloro-ethane at 35℃; Rate constant; measurement of the rate and half reaction time of the Vilsmeier-Haak reaction; investigation of the influence of POCl3 molar quantity on the reaction rate; | 96% |
With hydrogenchloride; sodium carbonate; trichlorophosphate at 35℃; | 96% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20 - 40℃; | 94% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With methyl iodide In dichloromethane at 40℃; Substitution; | 94% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
3-Benzyl-2-chloro-5,6-dihydro-4H-[1,3]thiazin-3-ium; chloride
Conditions | Yield |
---|---|
In benzene for 3h; Heating; | 93% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
salicylaldehyde
5,5'-(2-Hydroxyphenylmethylen)bis<2,4-dimethyl-3-pyrrolcarbonsaeure-ethylester>
Conditions | Yield |
---|---|
With hydrogen bromide In acetic acid | 93% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
2,4-dimethyl-1H-pyrrole-3-carboxylic acid
Conditions | Yield |
---|---|
With water; potassium hydroxide In methanol Reflux; | 92% |
Stage #1: 2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester With water; potassium hydroxide In methanol Reflux; Stage #2: With hydrogenchloride In water pH=3 - 4; | 76% |
With alkaline solution | |
With lithium hydroxide monohydrate In 1,4-dioxane; water at 100℃; for 24h; | 7.4 mg |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
4-benzoylmorpholine
ethyl 5-benzoyl-2,4-dimethylpyrrole-3-carboxylate
Conditions | Yield |
---|---|
With trichlorophosphate In 1,2-dichloro-ethane at 35℃; Rate constant; measurement of the rate and half reaction time of the Vilsmeier-Haak reaction; | 92% |
With hydrogenchloride; sodium carbonate; trichlorophosphate at 35℃; | 92% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
N,N-dimethylbenzamide
ethyl 5-benzoyl-2,4-dimethylpyrrole-3-carboxylate
Conditions | Yield |
---|---|
With hydrogenchloride; sodium carbonate; trichlorophosphate at 35℃; | 92% |
With trichlorophosphate In 1,2-dichloro-ethane at 35℃; Rate constant; measurement of the rate and half reaction time of the Vilsmeier-Haak reaction; | 92% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
2,4-Dihydroxybenzaldehyde
2-(2,4-Dihydroxyphenylmethylen)-4-ethoxycarbonyl-3,5-dimethylpyrroliumbromid
Conditions | Yield |
---|---|
With hydrogen bromide In acetic acid | 92% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
N,N-dimethylform-13C-amide
ethyl 5-[13C]formyl-2,4-dimethyl-1H-pyrrole-3-carboxylate
Conditions | Yield |
---|---|
Stage #1: 2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester; N,N-dimethylform-13C-amide With trichlorophosphate In dichloromethane at 4℃; for 1.25h; Reflux; Stage #2: With hydrogenchloride In dichloromethane; water at 10℃; | 91% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
2-((trifluoromethyl)thio)isoindoline-1,3-dione
Conditions | Yield |
---|---|
With sodium chloride In N,N-dimethyl-formamide at 90℃; for 14h; Inert atmosphere; Schlenk technique; | 91% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
N-(4-methoxybenzoyl)morpholine
5-(4-Methoxy-benzoyl)-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With hydrogenchloride; sodium carbonate; trichlorophosphate at 35℃; | 90% |
With trichlorophosphate In 1,2-dichloro-ethane at 35℃; Rate constant; measurement of the rate and half reaction time of the Vilsmeier-Haak reaction; | 90% |
2,4-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester
3-nitro-N,N-dimethylbenzamide
2,4-dimethyl-5-(3-nitro-benzoyl)-pyrrole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With hydrogenchloride; sodium carbonate; trichlorophosphate at 35℃; | 90% |
With trichlorophosphate In 1,2-dichloro-ethane at 35℃; Rate constant; measurement of the rate and half reaction time of the Vilsmeier-Haak reaction; | 90% |
The Ethyl 2,4-dimethyl-1H-pyrrole-3-carboxylate with CAS registry number of 2199-51-1 is also known as 1H-Pyrrole-3-carboxylic acid, 2,4-dimethyl-, ethyl ester. The IUPAC name is Ethyl 2,4-dimethyl-1H-pyrrole-3-carboxylate. It belongs to product categories of Pharmaceutial intermediates; Imidazoles, Pyrroles, Pyrazoles, Pyrrolidines; Intermediate of sunitinib malate. In addition, the formula is C9H13NO2 and the molecular weight is 167.21.
Physical properties about Ethyl 2,4-dimethyl-1H-pyrrole-3-carboxylate are: (1)ACD/LogP: 2.60; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.6; (4)ACD/LogD (pH 7.4): 2.6; (5)ACD/BCF (pH 5.5): 55.64; (6)ACD/BCF (pH 7.4): 55.64; (7)ACD/KOC (pH 5.5): 617.94; (8)ACD/KOC (pH 7.4): 617.94; (9)#H bond acceptors: 3; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 31.23Å2; (13)Index of Refraction: 1.516; (14)Molar Refractivity: 46.74 cm3; (15)Molar Volume: 154.7 cm3; (16)Polarizability: 18.52×10-24cm3; (17)Surface Tension: 39 dyne/cm; (18)Density: 1.08 g/cm3; (19)Flash Point: 129.8 °C; (20)Enthalpy of Vaporization: 53.04 kJ/mol; (21)Boiling Point: 291 °C at 760 mmHg; (22)Vapour Pressure: 0.002 mmHg at 25 °C.
When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system and skin. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
You can still convert the following datas into molecular structure:
1. Canonical SMILES: CCOC(=O)C1=C(NC=C1C)C
2. InChI: InChI=1S/C9H13NO2/c1-4-12-9(11)8-6(2)5-10-7(8)3/h5,10H,4H2,1-3H3
3. InChIKey: QWSFDUPEOPMXCV-UHFFFAOYSA-N
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