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Cas:6641-83-4
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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Cas:6641-83-4
Min.Order:1 Kilogram
FOB Price: $2.0
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
Cas:6641-83-4
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inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquirybest price high quality Storage:Room Temperature Application:For pharmacy chemicals Transportation:by sea,air
Cas:6641-83-4
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inquiry2-methyl-4-oxo-pentanoic acid cas 6641-83-4Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:6641-83-4
Min.Order:0
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
High quality / commercialize;Stable production capacity.Appearance:actual character Storage:Temperature controlled NMT 30℃ Package:As customer request Application:Used for Synthesis API and Research Transportation:Follow the MSDS
Cas:6641-83-4
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inquiryFINETECH INDUSTRY LIMITED is a LONDON based CRO company providing drug discovery & development services to worldwide clients. FINETECH INDUSTRY LIMITED supplies the 2-methyl-4-oxopentanoic acid, CAS:6641-83-4 with the most competitive price and the b
Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.Appearance:yellow to white solid Storage:keep sealed and keep from direct light Package:According client's requirements Application:Phar
high purity Application:Drug intermediates Materials intermediates and active molecules
percarbonate de O,O-tert-butyle et O-isopropyle
propionic acid
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With tert-butyl peroxyacetate at 95℃; for 16h; | 71% |
at 130℃; for 2.5h; | 52% |
Conditions | Yield |
---|---|
With tetrabutylammonium halide In N,N-dimethyl-formamide Ambient temperature; electrolysis, Mg anode; | 35% |
Conditions | Yield |
---|---|
With dihydrogen peroxide; acetic acid Kochen der Reaktionsprodukte mit verd. Alkalilauge; |
(2E)-2-methyl-4-oxo-2-pentenoic acid
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With ammonium chloride; zinc |
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
durch Destillation; | |
Destillation; |
methyl 3-(methoxycarbonyl)-2-methyl-4-oxopentanoate
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride |
2-acetyl-3-methyl-succinic acid diethyl ester
A
2,4-dimethyl-5-oxo-4,5-dihydro-furan-3-carboxylic acid
B
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With sodium hydroxide Erhitzen des Reaktionsprodukts mit wss. Schwefelsaeure; |
A
5-carboxymethyl-3-methylfuran-2(5H)-one
B
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride |
potassium cyanide
3-ethoxycarbonyl-3-penten-2-one
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With ethanol folgendes Kochen mit Salzsaeure; |
3-ethoxycarbonyl-3-penten-2-one
A
2-methyl-4-oxopentanoic acid
B
2,4-dimethyl-Δ3-γ-butyrolactone
Conditions | Yield |
---|---|
With hydrogenchloride; potassium cyanide; ethanol Erhitzen des Reaktionsgemisches unter vermindertem Druck; |
2,2-diethoxy-3,5-dimethyl-2,3-dihydro-furan
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane |
(+/-)-2-methylpent-4-ynoic acid
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With sulfuric acid; mercury(II) sulfate |
methyl 2-methyl-4-nitropentanoate
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
(i) aq. NaOH, (ii) aq. H2SO4; Multistep reaction; |
Conditions | Yield |
---|---|
With sodium hydroxide | |
With hydrogenchloride |
Methyl 2-bromopropionate
ethyl acetoacetate
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
(i) NaOEt, toluene, (ii) KOH, EtOH; Multistep reaction; |
2,3-dimethyl-5-methyl-2-cyclopentenone
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With oxygen; ozone In dichloromethane at -78℃; for 0.75h; | 0.59 g |
5-hydroxy-3,5-dimethyl-5H-furan-2-one
2-methyl-4-oxopentanoic acid
hydrogenchloride
A
5-carboxymethyl-3-methylfuran-2(5H)-one
B
2-methyl-4-oxopentanoic acid
ethanol
3-ethoxycarbonyl-3-penten-2-one
A
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
at 0℃; anschliessendes Ansaeuern mit Essigsaeure unterhalb 0grad und Kochen mit Salzsaeure; |
ethanol
3-ethoxycarbonyl-3-penten-2-one
A
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
folgendes Kochen mit Salzsaeure; |
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With sodium hydroxide |
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With sodium hydroxide |
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With potassium hydroxide |
hydrogenchloride
methyl 3-(methoxycarbonyl)-2-methyl-4-oxopentanoate
2-methyl-4-oxopentanoic acid
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With sulfuric acid |
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With -base |
2-methyl-4-oxopentanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
With barium dihydroxide und Zersetzen des Bariumsalzes mit verd.HCl bei 0grad; low-melting 2-methyl-muconic acid; |
Conditions | Yield |
---|---|
With hydrogenchloride |
2-methyl-4-oxopentanoic acid
4,5-dihydro-4,6-dimethylpyridazin-3(2H)-one
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol for 2h; Heating; | 98.7% |
With ethanol; hydrazine hydrate Erhitzen des Reaktionsprodukts; |
Conditions | Yield |
---|---|
With sulfuric acid at 50℃; for 5h; | 91% |
2-methyl-4-oxopentanoic acid
Benzeneselenol
cis-3,5-dimethyl-5-phenylselenenyltetrahydrofuran
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In benzene for 36h; Ambient temperature; | 90% |
Conditions | Yield |
---|---|
With phosphoric acid at 140 - 150℃; for 4h; | 89% |
Multi-step reaction with 2 steps 1: 90 percent / p-toluenesulfonic acid / benzene / 36 h / Ambient temperature 2: 80 percent / O3, pyridine / CH2Cl2 / 1.) O3, 15 min, 2.) pyridine, 2 h, reflux View Scheme |
2-methyl-4-oxopentanoic acid
(+/-)-4,5-dihydro-2,4-dimethylfuran
Conditions | Yield |
---|---|
With phosphoric acid at 140 - 150℃; for 4h; | 34% |
2-methyl-4-oxopentanoic acid
B
5-(dibromomethylene)-3-methylfuran-2(5H)-one
C
4-bromo-5-(dibromomethyl)-3-methylfuran-2(5H)-one
Conditions | Yield |
---|---|
Stage #1: 2-methyl-4-oxopentanoic acid With bromine; acetic acid at 35 - 40℃; for 1h; Stage #2: With sulfuric acid at 110℃; for 0.333333h; Further stages.; | A 13% B 12% C 2.7% |
Stage #1: 2-methyl-4-oxopentanoic acid With bromine Stage #2: With sulfuric acid |
1-(1-methylpiperidin-4-yl)hydrazine
2-methyl-4-oxopentanoic acid
4,6-dimethyl-2-(1-methyl-[4]piperidyl)-2H-pyridazin-3-one
Conditions | Yield |
---|---|
With ethanol Behandeln des Reaktionsprodukts mit Brom in Essigsaeure; |
Lg-tartaric acid amide-hydrazide
2-methyl-4-oxopentanoic acid
(R)-4-((2R,3R)-3-carbamoyl-2,3-dihydroxy-propionylhydrazono)-2-methyl-valeric acid
Conditions | Yield |
---|---|
With pyridine |
Conditions | Yield |
---|---|
With diphosphorus trisulfide | |
With phosphorous (V) sulfide |
Conditions | Yield |
---|---|
With ethanol; sulfuric acid |
2-methyl-4-oxopentanoic acid
hydrazine carboxamide
(+/-)-2-methyl-4-semicarbazono-valeric acid
2-methyl-4-oxopentanoic acid
2-Methylpentanoic acid
Conditions | Yield |
---|---|
With potassium hydroxide; hydrazine hydrate In diethylene glycol Heating; |
2-methyl-4-oxopentanoic acid
4-hydroxy-2-methyl-valeric acid
Conditions | Yield |
---|---|
With sodium tetrahydroborate |
2-methyl-4-oxopentanoic acid
semicarbazide hydrochloride
(+/-)-2-methyl-4-semicarbazono-valeric acid
Conditions | Yield |
---|---|
With sodium acetate In water |
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