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inquiryProduct name :3,4-Dihydro-7-Hydroxy Carbostyril CAS:22246-18-0 We are also manufacturing and supplying below aripiprazole intermediates: Appearance:white powder Storage:keep from moisture,sealed in container contai
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inquiryItem Specification Product Name 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone CAS No. 22246-18-0 Appearance White
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inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Red powder Storage:cool dry place Package:25kg/drum Application:pharmaceutical intermediate Transportation:by cour
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inquiryHebei yanxi chemical co., LTD is a professional research, development and production Cyromazine、lead diacetate trihydrate /Lead acetate trihydrateC、 2-phenylacetamide 、 4-Aminophenyl-1-phenethylpiperidine 、Citric acid monohydrate 、 Citric acid/c
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inquiryhigh quality Appearance:White or off white powder Storage:Sealed, dry, microtherm , avoid light and smell Package:According to the demand of customer Application:Pharmaceutical intermediates Transportation:by air or by sea Port:shanghai
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inquiry3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Manufacturer Factory CAS 22246-18-0 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Manufacturer High quality Best price In stock factory CAS 22246-18-0 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone COA TDS price MSDS
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inquiryProduct Description Product website: http://www.finerchem.com Product Name 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone
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inquiry3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Basic information Product Name: 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Synonyms: AURORA KA-4813;(1H)-7-HYDROXY-3,4-DIHYDRO-2-QUINOLINONE;7-HYDROX
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inquiryName: 7-Hydroxyquinolinone Synonyms: 7-Hydroxy-2-(1H)-quinolinone CAS:22246-18-0 MF: C9H9NO2 Appearance: white powder Storage:Store in cool and dry place, away from sun light. Package: 25kgs/drum Application:Organic synthesis Transportation:By s
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inquiryProduct Name: 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Synonyms: Aripiprazole Impurity 21(Aripiprazole EP Impurity A);4-Dihydro-7-hydroxy-2(1H)-quinolinone;Aripiprazole EP Impurity A;Aripiprazole intermediate;22246-18-0;7-Hydroxy-3,4-dihydro-2(1H
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inquiry3-chloro-N-(3-hydroxyphenyl)propanamide
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With aluminum (III) chloride In N,N-dimethyl-formamide at 90 - 150℃; for 6h; Cooling with ice; | 88% |
Stage #1: 3-chloro-N-(3-hydroxyphenyl)propanamide With aluminum (III) chloride at 210℃; for 0.5h; Stage #2: With water at 20℃; | 76% |
With aluminum (III) chloride In N,N-dimethyl acetamide at 130 - 140℃; | 68% |
3-chloro-N-(3-methoxyphenyl)propionamide
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
aluminum (III) chloride In N,N-dimethyl acetamide at 140 - 150℃; for 2.75h; Friedel Crafts Alkylation; | 82% |
With aluminium trichloride; N,N-dimethyl acetamide at 150 - 160℃; for 2h; Friedel-Crafts reaction; | 61.5% |
With aluminum (III) chloride In N,N-dimethyl acetamide at 0 - 150℃; for 2h; | 54% |
C9H7NO5
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With ammonium formate on silica gel; zinc In carbon dioxide at 50℃; under 90009 Torr; Autoclave; liquid CO2; | 78% |
acrylic acid methyl ester
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
Stage #1: 4-benyzloxy-2-nitrobenzenediazonium tetrafluoroborate; acrylic acid methyl ester With palladium diacetate In 1,4-dioxane at 25℃; for 6h; Heck reduction-cyclisation-debenzylation reaction; Stage #2: With hydrogen; palladium diacetate; pyrographite In 1,4-dioxane at 50℃; for 24h; Heck reduction-cyclisation-debenzylation reaction; | 66% |
3-chloro-N-(3-methoxyphenyl)propionamide
A
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
B
5-hydroxycarbostyril
Conditions | Yield |
---|---|
Stage #1: N-(3-methoxyphenyl)-3-chloropropionamide; aluminum (III) chloride at 155 - 165℃; for 4h; Stage #2: With methanol; sodium hydroxide In water at 20℃; for 1h; pH=7; Product distribution / selectivity; Heating / reflux; | A 62.3% B n/a |
Stage #1: N-(3-methoxyphenyl)-3-chloropropionamide With N,N-dimethyl acetamide; aluminum (III) chloride In water at 95 - 165℃; for 5.5h; Stage #2: With methanol; sodium hydroxide In water at 20℃; for 1h; pH=7; Product distribution / selectivity; Heating / reflux; | A 61.3% B n/a |
Stage #1: N-(3-methoxyphenyl)-3-chloropropionamide; aluminum (III) chloride In water at 95 - 165℃; for 5.5h; Stage #2: With methanol; sodium hydroxide In water at 20℃; for 1h; pH=7; Product distribution / selectivity; Heating / reflux; | A 61.3% B n/a |
3-chloro-N-(3-methoxyphenyl)propionamide
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
In ice-H2O | 55% |
7-methoxy-2-oxo-1,2,3,4-tetrahydroquinoline
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With hydrogen bromide |
3-chloro-N-(3-hydroxyphenyl)propanamide
A
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With aluminium trichloride beim Schmelzen; |
m-Anisidine
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 96 percent / NaHCO3 / CH2Cl2 / 4 h / 20 °C 2: 61.5 percent / N,N-dimethylacetamide; aluminium trichloride / 2 h / 150 - 160 °C View Scheme | |
Multi-step reaction with 2 steps 1: 95 percent / aq. K2CO3 / acetone / 1 h / 0 °C 2: 4 percent / AlCl3 / chlorobenzene / 6 h / 120 °C View Scheme | |
Multi-step reaction with 2 steps 1: sodium carbonate / toluene / 2 h / 40 - 65 °C 2: aluminum (III) chloride / N,N-dimethyl acetamide / 140 - 150 °C View Scheme | |
Multi-step reaction with 2 steps 1: pyridine / tetrahydrofuran / 0 - 20 °C 2: aluminum (III) chloride; N,N-dimethyl acetamide / 4 h / 140 °C View Scheme | |
Multi-step reaction with 2 steps 1: sodium hydrogencarbonate / toluene / 2 h / 50 °C 2: aluminum (III) chloride / N,N-dimethyl acetamide / 2 h / 0 - 150 °C View Scheme |
methyl (E)-3-(4′-methoxy-2′-nitrophenyl)acrylate
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Raney nickel; ethanol / Hydrogenation 2: aqueous hydrobromic acid View Scheme |
2-chloropropionyl chloride
m-Hydroxyaniline
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
acrylic acid methyl ester
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
Stage #1: 4-hydroxy-2-nitrobenzenediazonium tetrafluoroborate; acrylic acid methyl ester With sodium acetate; palladium diacetate In methanol at 20℃; for 12h; Mizoroki-Heck reaction; Inert atmosphere; Stage #2: With hydrogen; pyrographite In methanol at 20℃; under 750.075 Torr; for 24h; Stage #3: With hydrogenchloride In methanol; water | 360 mg |
N-(4-hydroxy-2-nitrophenyl)-acetamide
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: boron trifluoride - methanol (1/1) / methanol / 5 h / Inert atmosphere; Reflux 1.2: 0.33 h / -15 - 0 °C 2.1: sodium acetate; palladium diacetate / methanol / 12 h / 20 °C 3.1: pyrographite; hydrogen / methanol / 24 h / 750.08 Torr View Scheme |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With hydrogen; pyrographite In methanol under 750.075 Torr; for 24h; | 360 mg |
m-Hydroxyaniline
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium hydrogencarbonate / acetonitrile / 0 °C 2: aluminum (III) chloride / dichloromethane View Scheme | |
Multi-step reaction with 2 steps 1: sodium hydroxide / 2 h / 25 °C / pH 9 2: boron trifluoride diethyl etherate / toluene / 2 h / 60 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: sodium hydrogencarbonate / dichloromethane / 0.5 h / 20 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: aluminum (III) chloride / N,N-dimethyl acetamide / 4 h / 70 - 140 °C View Scheme |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In toluene at 60℃; for 2h; Temperature; |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
tert-butyldimethylsilyl chloride
7-(tert-butyl-dimethylsilanyloxy)-3,4-dihydro-1H-quinolin-2-one
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0℃; | 99.4% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-hydroxy-1,2,3,4-tetrahydroquinoline
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride In tetrahydrofuran Inert atmosphere; Cooling with ice; Reflux; | 98% |
With sodium tetrahydroborate In tetrahydrofuran at 0℃; Reflux; | 98% |
With lithium aluminium tetrahydride In tetrahydrofuran Cooling with ice; Reflux; | 95% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
1-bromomethyl-3-chlorobenzene
7-((3-chlorobenzyl)oxy)-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 60℃; for 18h; | 97% |
With potassium carbonate In acetonitrile for 8h; Reflux; | 68% |
With potassium hydroxide In ethanol for 5h; Reflux; | 32% |
4-chlorobutyl bromide
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-(4-chlorobutoxy)-3,4-dihydroquinoline-2(1H)-one
Conditions | Yield |
---|---|
With lithium hydroxide In water; N,N-dimethyl-formamide at 40 - 50℃; for 3h; Reagent/catalyst; Solvent; Sealed tube; Large scale; | 95% |
With potassium carbonate; polyethylene glycol-400 In water; acetone at 20℃; for 15.1667 - 16.1667h; | 94% |
With potassium carbonate In N,N-dimethyl-formamide at 20 - 30℃; for 24h; Solvent; Temperature; Large scale; | 93.2% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
2-Bromo-2'-acetonaphthone
7-[2-(naphthalen-2-yl)-2-oxoethoxy]-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 2-Bromo-2'-acetonaphthone In N,N-dimethyl-formamide at 20℃; for 24h; | 95% |
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 2-Bromo-2'-acetonaphthone In N,N-dimethyl-formamide at 20℃; for 24h; | 88% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
4-chlorobutanal dimethyl acetal
7-(4,4-dimethoxybutoxy)-3,4-dihydro-1H-quinolin-2-one
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; potassium carbonate In dimethyl sulfoxide at 115℃; for 4h; | 95% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-hydroxy-1H-quinolin-2-one
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; water; oxygen; acetic acid at 110 - 116℃; for 18h; Reagent/catalyst; Temperature; | 94.2% |
With palladium 10% on activated carbon In decalin at 180℃; for 8h; | 90.9% |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In tetrahydrofuran at 66℃; for 4h; Catalytic behavior; Concentration; Solvent; Temperature; | 89% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
4-methoxy-benzoyl chloride
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 5h; | 93.3% |
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 80℃; for 3h; Inert atmosphere; | 92% |
Conditions | Yield |
---|---|
With potassium carbonate In water at 99℃; for 5h; Reagent/catalyst; Temperature; | 91.4% |
1,4-dibromo-butane
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-(4-bromobutoxy)-3,4-dihydro-2(1H)-quinolinone
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In water; acetone at 20℃; for 1h; Stage #2: 1,4-dibromo-butane In water; acetone at 20℃; for 16h; | 91% |
With potassium iodide; sodium hydroxide In acetonitrile at 30℃; for 16h; | 85% |
With sodium hydroxide In ethanol for 2.5h; Heating; | 83% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
1,4-dichlorobutane
7-(4-chlorobutoxy)-3,4-dihydroquinoline-2(1H)-one
Conditions | Yield |
---|---|
With potassium carbonate In propan-1-ol for 8 - 10h; Product distribution / selectivity; Heating / reflux; | 91% |
With potassium carbonate; sodium sulfate; Aliquat 336 In toluene for 14h; Product distribution / selectivity; Heating / reflux; | 75% |
With potassium carbonate In ISOPROPYLAMIDE at 90 - 95℃; for 15 - 16h; | 75% |
With potassium carbonate In acetonitrile for 22h; Product distribution / selectivity; Heating / reflux; | 74% |
With potassium carbonate In propan-1-ol; isopropyl alcohol for 19h; Product distribution / selectivity; Heating / reflux; | 66% |
1 ,6-dibromohexane
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-((6-bromohexyl)oxy)-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In water; acetone at 20℃; for 1h; Stage #2: 1 ,6-dibromohexane In water; acetone at 20℃; for 16h; | 91% |
With potassium carbonate In acetonitrile at 60 - 65℃; Inert atmosphere; | 56.8% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-(4-bromobutoxy)-3,4-dihydro-2(1H)-quinolinone
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 80℃; | 90.9% |
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With sodium hydroxide In methanol for 2h; Heating; Stage #2: 7-(4-bromobutoxy)-3,4-dihydro-2(1H)-quinolinone In N,N-dimethyl-formamide at 20℃; Further stages.; | 16.8 g |
With potassium hydroxide In ethanol Reflux; |
1,5-dibromo-pentane
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-((5-bromopentyl)oxy)-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In water; acetone at 20℃; for 1h; Stage #2: 1,5-dibromo-pentane In water; acetone at 20℃; for 16h; | 90% |
With potassium carbonate In acetonitrile at 60 - 65℃; Inert atmosphere; | 60.2% |
With potassium hydroxide In isopropyl alcohol for 4h; Heating; | 53% |
With potassium carbonate In acetonitrile at 50℃; for 20h; |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
methyl iodide
7-methoxy-2-oxo-1,2,3,4-tetrahydroquinoline
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In isopropyl alcohol at 20℃; for 0.5h; Inert atmosphere; Stage #2: methyl iodide In isopropyl alcohol for 60h; Reflux; | 90% |
In N,N-dimethyl-formamide at 20℃; | 82% |
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 18h; | 63% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
1,3-dibromo-propane
7-(3-bromopropoxy)-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In water; acetone at 20℃; for 1h; Stage #2: 1,3-dibromo-propane In water; acetone at 20℃; for 16h; | 90% |
With potassium carbonate In ethanol Reflux; | 88% |
With potassium carbonate In acetonitrile at 60 - 65℃; Inert atmosphere; | 65.3% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
t-butyl 4-(2-nitrophenylsulfonyloxy)piperidine-1-carboxylate
tert-butyl 4-[(2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy]piperidine-1-carboxylate
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 50℃; for 7h; Williamson Synthesis; | 87% |
With triethylamine In dichloromethane |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
6-bromo-7-hydroxy-3,4-dihydro-1H-quinolin-2-one
Conditions | Yield |
---|---|
With N-Bromosuccinimide In N,N-dimethyl-formamide at 0℃; for 9h; | 87% |
With N-Bromosuccinimide | 58% |
With N-Bromosuccinimide In N,N-dimethyl-formamide at 0 - 20℃; | 0.82 g |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
trifluoromethylsulfonic anhydride
2-oxo-1,2,3,4-tetrahydroquinolin-7-yl trifluoromethanesulfonate
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 10 - 30℃; for 3h; | 85% |
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With pyridine In chloroform at 20℃; for 0.166667h; Stage #2: trifluoromethylsulfonic anhydride In chloroform at 20℃; for 1.5h; Cooling with ice; | 67% |
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With pyridine In chloroform at 0 - 40℃; for 0.166667h; Stage #2: trifluoromethylsulfonic anhydride In chloroform at 10 - 15℃; for 1.58333h; | |
With pyridine In chloroform at 0 - 23℃; for 18h; Inert atmosphere; Schlenk technique; |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
α-bromoacetophenone
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; deprotonation; Stage #2: α-bromoacetophenone In N,N-dimethyl-formamide at 20℃; for 24h; Alkylation; | 84% |
With potassium carbonate |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
benzyl bromide
7-(benzyloxy)-3,4-dihydro-2(1H)-quinolinone
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide for 16h; | 84% |
With potassium carbonate In acetonitrile Heating; | 79% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 16h; | 67% |
With potassium hydroxide In ethanol for 5h; Reflux; | 57% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
(4-bromobutoxy)-tert-butyldimethylsilane
Conditions | Yield |
---|---|
With potassium carbonate In ethanol Reflux; | 84% |
With potassium carbonate; potassium iodide Reflux; | 84% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
2-Bromo-4'-phenylacetophenone
Conditions | Yield |
---|---|
Stage #1: 7-hydroxy-3,4-dihydro-2-(1H)-quinolinone With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; deprotonation; Stage #2: 2-Bromo-4'-phenylacetophenone In N,N-dimethyl-formamide at 20℃; for 24h; Alkylation; | 80% |
With potassium carbonate |
4-chlorobutyl bromide
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
B
7-(4-chlorobutoxy)-3,4-dihydroquinoline-2(1H)-one
Conditions | Yield |
---|---|
With sodium hydroxide In ISOPROPYLAMIDE at 36 - 40℃; for 4h; Product distribution / selectivity; | A 0.3% B 80% |
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
N,N-diethylcarbamyl chloride
Conditions | Yield |
---|---|
With pyridine for 12h; Reflux; | 80% |
2-(morpholin-4-yl)ethanol
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
7-(2-morpholinoethoxy)-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
With cyanomethylenetributyl-phosphorane In toluene at 100℃; for 16h; Mitsunobu Displacement; | 80% |
2-(4-methylpiperazinyl)ethanol
7-hydroxy-3,4-dihydro-2-(1H)-quinolinone
Conditions | Yield |
---|---|
With cyanomethylenetributyl-phosphorane In toluene at 100℃; for 16h; Mitsunobu Displacement; | 80% |
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