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inquiryethyl 6-methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine-3-acetate
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With water; potassium hydroxide In ethanol at 30℃; | 96% |
With sodium hydroxide In water for 3h; Reflux; | 81.8% |
With water; sodium hydroxide In ethanol at 90℃; Flow reactor; |
N,N,6-trimethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine-3-acetamide
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With hydrogenchloride In water at 0℃; for 18h; Heating / reflux; | 94% |
oxalyl dichloride
6-methyl-2-(4-methyl-phenyl)-imidazo[1,2-a]pyridine
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Stage #1: oxalyl dichloride; 6-methyl-2-(4-methyl-phenyl)-imidazo[1,2-a]pyridine With potassium carbonate In tetrahydrofuran at 20 - 35℃; Stage #2: With potassium hydroxide In tetrahydrofuran; water at 65 - 70℃; Stage #3: With hydrazine hydrate In water at 110 - 115℃; Reagent/catalyst; Temperature; Solvent; | 95.2% |
(5-methyl-pyridin-2-yl)amine
3-bromo-4-(4-methylphenyl)-4-oxobutanoic acid
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With sodium carbonate In water at 60℃; for 6h; Concentration; Reagent/catalyst; Solvent; Temperature; Inert atmosphere; | 82% |
(5-methyl-pyridin-2-yl)amine
3-chloro-4-(4-methylphenyl)-4-oxobutanoic acid
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With sodium carbonate In water at 80℃; for 7h; Concentration; Reagent/catalyst; Solvent; Temperature; Inert atmosphere; | 52% |
6-methyl-3-cyanomethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With hydrogenchloride; water | 91% |
Stage #1: 6-methyl-3-cyanomethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine With sulfuric acid; water at 110℃; for 4 - 5h; Stage #2: With sodium hydroxide; water at 0℃; pH=9; Stage #3: With water; acetic acid pH=5.5; Product distribution / selectivity; | 72% |
Stage #1: 6-methyl-3-cyanomethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine With hydrogenchloride In water at 25 - 100℃; for 12h; Heating / reflux; Stage #2: With potassium hydroxide In water at 25 - 105℃; for 2 - 3h; Stage #3: With acetic acid In water at 30 - 40℃; | |
Stage #1: 6-methyl-3-cyanomethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine With sodium hydroxide; water at 55 - 98℃; for 16.5h; Heating / reflux; Stage #2: With acetic acid In water at 25℃; for 4h; pH=5.3; | |
With sulfuric acid at 110℃; Inert atmosphere; |
(6-methyl-2-p-tolyl-2,3-dihydro-imidazo[1,2-a]pyridin-3-yl)-oxoacetic acid
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Stage #1: (6-methyl-2-p-tolyl-2,3-dihydro-imidazo[1,2-a]pyridin-3-yl)-oxoacetic acid With potassium hydroxide; hydrazine In diethylene glycol at 120 - 180℃; pH=4 - 5; Stage #2: With acetic acid In water; diethylene glycol at 0 - 10℃; pH=6 - 6.5; |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With acetic acid In water; acetone at 0 - 10℃; for 0.5h; | 67% |
6-methyl-2-(4-methyl-phenyl)-imidazo[1,2-a]pyridine
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: 78 percent / acetic acid / H2O / 4 h / 50 - 55 °C 2.1: MeI / ethanol / 24 h / 20 °C 2.2: H2O; ethanol / 4 h / Heating 3.1: 87 percent / aq. KOH / ethanol / 8 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1: 79 percent / AcOH 4: 91 percent / H2O, HCl View Scheme | |
Multi-step reaction with 2 steps 1: ferrocene; bis(1-methyl-1-phenylethyl)peroxide / 20 h / 20 - 100 °C / Inert atmosphere; Sealed tube 2: sulfuric acid / 110 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: tris(bipyridine)ruthenium(II) dichloride hexahydrate / methanol; water / 36 h / 20 °C / Irradiation; Inert atmosphere 2: potassium hydroxide / water; ethanol / 30 °C View Scheme | |
Multi-step reaction with 2 steps 1: rhodium (II) octanoate dimer / chloroform / 4 h / 20 °C / Inert atmosphere 2: lithium hydroxide monohydrate / methanol; water / 1 h / 20 °C View Scheme |
2-(4-methylphenyl)-6-methylimidazo[1,2-α]pyridine-3-acetamide
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol for 8h; Heating; | 87% |
(5-methyl-pyridin-2-yl)amine
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol / 0.33 h / 30 °C 2: water; potassium hydroxide / ethanol / 30 °C View Scheme | |
Multi-step reaction with 3 steps 1: sodium hydrogencarbonate / ethanol / 6 h / 20 °C / Inert atmosphere 2: ferrocene; bis(1-methyl-1-phenylethyl)peroxide / 20 h / 20 - 100 °C / Inert atmosphere; Sealed tube 3: sulfuric acid / 110 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 4 steps 1: diethyl ether / 1 h / 0 °C 2: copper(l) chloride / toluene / 1 h / Inert atmosphere; Reflux 3: pyrographite / ethanol / 20 °C 4: acetic acid / water; acetone / 0.5 h / 0 - 10 °C View Scheme |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With acetic acid for 4h; Reflux; | 560 mg |
C15H17NO6
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol / 0.33 h / 30 °C 2: water; potassium hydroxide / ethanol / 30 °C View Scheme |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: pyridine / dichloromethane / 0.5 h / 0 °C 2: methanol / 0.33 h / 30 °C 3: water; potassium hydroxide / ethanol / 30 °C View Scheme |
4-methyl-β-nitrostyrene
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: dmap / acetonitrile / 30 °C 2: pyridine / dichloromethane / 0.5 h / 0 °C 3: methanol / 0.33 h / 30 °C 4: water; potassium hydroxide / ethanol / 30 °C View Scheme |
4-(bromoacetyl)toluene
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: sodium hydrogencarbonate / ethanol / 6 h / 20 °C / Inert atmosphere 2: ferrocene; bis(1-methyl-1-phenylethyl)peroxide / 20 h / 20 - 100 °C / Inert atmosphere; Sealed tube 3: sulfuric acid / 110 °C / Inert atmosphere View Scheme |
dimethyl-(6-methyl-2-p-tolylimidazo[1,2-a]pyridin-3-ylmethyl)-amine
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: MeI / ethanol / 24 h / 20 °C 1.2: H2O; ethanol / 4 h / Heating 2.1: 87 percent / aq. KOH / ethanol / 8 h / Heating View Scheme | |
Multi-step reaction with 3 steps 3: 91 percent / H2O, HCl View Scheme |
para-methylacetophenone
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: polymer supported sulfonic acid resin / toluene / 120 °C / Flow reactor 2: tetrafluoroboric acid diethyl ether / acetonitrile / 120 °C / Flow reactor 3: sodium hydroxide; water / ethanol / 90 °C / Flow reactor View Scheme |
C13H14O3
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: tetrafluoroboric acid diethyl ether / acetonitrile / 120 °C / Flow reactor 2: sodium hydroxide; water / ethanol / 90 °C / Flow reactor View Scheme |
4-methyl-benzaldehyde
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: diethyl ether / 1 h / 0 °C 2: copper(l) chloride / toluene / 1 h / Inert atmosphere; Reflux 3: pyrographite / ethanol / 20 °C 4: acetic acid / water; acetone / 0.5 h / 0 - 10 °C View Scheme |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: copper(l) chloride / toluene / 1 h / Inert atmosphere; Reflux 2: pyrographite / ethanol / 20 °C 3: acetic acid / water; acetone / 0.5 h / 0 - 10 °C View Scheme |
toluene
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: aluminum (III) chloride / 1,2-dichloro-ethane / 4 h / 0 - 20 °C 2: hydrogen iodide; toluene-4-sulfonic acid / 5,5-dimethyl-1,3-cyclohexadiene; ethanol / 3 h / 110 - 120 °C 3: sodium carbonate / water / 20 °C 4: sodium hydroxide / water / 3 h / Reflux View Scheme |
4-(p-methylphenyl)-4-oxo-2-butenoic acid
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: hydrogen iodide; toluene-4-sulfonic acid / 5,5-dimethyl-1,3-cyclohexadiene; ethanol / 3 h / 110 - 120 °C 2: sodium carbonate / water / 20 °C 3: sodium hydroxide / water / 3 h / Reflux View Scheme |
(5-methyl-pyridin-2-yl)amine
2,2-dihydroxy-1-(p-tolyl)ethanone
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: acetonitrile / 4 h / Reflux 2: acetic acid / 4 h / Reflux View Scheme |
Trimethyl-(6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-ylmethyl)-ammonium; iodide
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: 91 percent / H2O, HCl View Scheme |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
(6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-acetyl chloride hydrochloride
Conditions | Yield |
---|---|
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 0℃; for 3h; | 100% |
N,N-dimethylammonium chloride
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
N,N,6-trimethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine-3-acetamide
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In N,N-dimethyl acetamide at 90 - 100℃; for 3h; Solvent; Reagent/catalyst; Temperature; | 95.6% |
methanol
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
methyl 2-(6-methyl-2-(p-tolyl)imidazo[1,2-a]pyridin-3-yl)acetate
Conditions | Yield |
---|---|
Stage #1: methanol; 6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid; sulfuric acid at 5 - 20℃; for 4h; Heating / reflux; Stage #2: With sodium carbonate In water pH=8; Product distribution / selectivity; | 93.3% |
toluene-4-sulfonic acid for 6h; Product distribution / selectivity; Heating / reflux; | 75.6% |
Stage #1: methanol; 6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid; hydrogenchloride for 8h; Heating / reflux; Stage #2: With sodium hydrogencarbonate In water pH=7; Product distribution / selectivity; | 71.5% |
hydrogenchloride In water for 5h; Product distribution / selectivity; Heating / reflux; | |
Stage #1: methanol; 6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid; sulfuric acid In toluene for 4h; Heating / reflux; Stage #2: With sodium hydrogencarbonate In water pH=7; Product distribution / selectivity; |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
2-(6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-ethanol
Conditions | Yield |
---|---|
With borane-THF In tetrahydrofuran at 0 - 20℃; for 2h; | 93% |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
dimethyl amine
N,N,6-trimethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine-3-acetamide
Conditions | Yield |
---|---|
Stage #1: 6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid With pivaloyl chloride; triethylamine In dichloromethane at 0 - 5℃; for 0.5h; Stage #2: dimethyl amine In dichloromethane; water at 0 - 5℃; for 0.5h; | 84.3% |
Stage #1: 6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid With phosphorus pentachloride In dichloromethane at 20 - 35℃; for 24h; Stage #2: dimethyl amine In dichloromethane at 20℃; for 24h; | 56% |
In tetrahydrofuran at 20℃; for 1h; |
benzyl bromide
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With sodium hydroxide In water for 1.5h; Heating / reflux; | 71% |
oxalyl dichloride
N,N-dimethylammonium chloride
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
pyrographite
tartaric acid
Conditions | Yield |
---|---|
With triethylamine In methanol; dichloromethane; water | 70.1% |
With triethylamine In methanol; dichloromethane; water | 70.1% |
N,N-dimethylammonium chloride
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
pyrographite
tartaric acid
Conditions | Yield |
---|---|
With thionyl chloride; triethylamine In methanol; dichloromethane; water | 65.2% |
With thionyl chloride; triethylamine In methanol; dichloromethane; water | 65.2% |
N-methyl-N-allylamine
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
N-allyl-N-methyl-2-(6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-acetamide
Conditions | Yield |
---|---|
With bis(2-oxo-1,3-oxazolidin-3-yl)phosphinous chloride; triethylamine In dichloromethane at 20℃; | 60% |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
1,1'-carbonyldiimidazole
1-hydroxy-pyrrolidine-2,5-dione
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In N,N-dimethyl-formamide for 14h; Ambient temperature; |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
N,N-didemethylzolpidem-N-{2-[3-(p-hydroxyphenyl)]methyl propionate}
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: DCC / dimethylformamide / 14 h / Ambient temperature 2: dimethylformamide / 0.25 h / Ambient temperature View Scheme |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: DCC / dimethylformamide / 14 h / Ambient temperature 2: dimethylformamide / 0.25 h / Ambient temperature 3: NaI, chloramine T / methanol; H2O / 0.17 h / 0 °C View Scheme |
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
N,N,6-trimethyl-2-(4-methylphenyl)imidazo[1,2-a]pyridine-3-acetamide
pivaloyl chloride
6-methyl-2-(4-methylphenyl)-imidazo<1,2-a>pyridine-3-acetic acid
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 15℃; |
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