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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

Butanoic acid,3-methyl-2-oxo- Manufacturer/High quality/Best price/In stock

Cas:759-05-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 3-Methyl-2-oxo-butanoic Acid supplier in China

Cas:759-05-7

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so

759-05-7 C5H8O3 3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED

Cas:759-05-7

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

Butanoic acid,3-methyl-2-oxo- 759-05-7

Cas:759-05-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED CAS:759-05-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high qual

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED CAS:759-05-7

Cas:759-05-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Butanoic acid,3-methyl-2-oxo-

Cas:759-05-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

Butanoic acid,3-methyl-2-oxo-

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Butanoic acid,3-methyl-2-oxo-

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality 3-Methyl-2-oxo-butanoic Acid

Cas:759-05-7

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new api, in

Enke 2-Oxo-3-methylbutanoic acid

Cas:759-05-7

Min.Order:1 Kilogram

FOB Price: $300.0 / 350.0

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe

SAGECHEM/3-Methyl-2-oxobutanoic acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

3-Methyl-2-oxo-butanoic Acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier

3-Methyl-2-oxobutyric acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec 3-Methyl-2-oxobutanoic acid 1g

Cas:759-05-7

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

3-Methyl-2-oxo-butanoic Acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED

Cas:759-05-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

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

Butanoic acid,3-methyl-2-oxo-

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Pharm intermediate

3-Methyl-2-oxo-butanoic acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

DB BIOTECH CO., LTD

best seller Application:API

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

Butanoic acid,3-methyl-2-oxo- cas 759-05-7Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

Butanoic acid,3-methyl-2-oxo- cas 759-05-7

Cas:759-05-7

Min.Order:0

Negotiable

Type:Other

inquiry

Shaanxi Cuicheng Biomedical Technology Co., Ltd.

factory?direct?saleAppearance:powder Storage:In cool ,dry place Package:G/bottle; Kg/bag; 1663kg/barrel Application:for pharma use Transportation:Air or sea freight Port:Any main ports of China

3-methyl-2-oxy-butyric acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

3-methyl-2-oxobutyricacid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

759-05-7

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Yuanye Bio-Technology Co., Ltd.

good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:250mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any po

3-Methyl-2-oxo-butanoic acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Muhuang Technology Co., Ltd

best seller Application:API

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Scochem Technology Co., Ltd.

High quality suppliers Application:healing drugs

3-methyl-2-oxobutyric aciddiscontinued

Cas:759-05-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

3-METHYL-2-OXOBUTYRIC ACIDDISCONTINUED

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

LEAP CHEM Co., Ltd.

Best Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP

3-methyl-2-oxo-butanoic acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Bide Pharmatech Ltd

Our mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical

3-Methyl-2-oxobutanoic acid

Cas:759-05-7

Min.Order:0

Negotiable

Type:Other

inquiry

Synthetic route

ethyl 3-methyl-2-oxobutanoate
20201-24-5

ethyl 3-methyl-2-oxobutanoate

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With water; lithium hydroxide at 0 - 25℃; for 1h; Inert atmosphere;95%
With sodium hydroxide In water at 0 - 23℃; for 0.666667h;62%
With potassium hydroxide
4-isopropylidene-oxazolidine-2,5-dione
7682-64-6

4-isopropylidene-oxazolidine-2,5-dione

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran for 0.5h; Ambient temperature;95%
2,5-dihydro-4-(1-methylethyl)-2-(3-oxocyclohexyl)-oxazol-5-one
152343-06-1

2,5-dihydro-4-(1-methylethyl)-2-(3-oxocyclohexyl)-oxazol-5-one

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

3-oxocyclohexanecarbaldehyde
69814-26-2

3-oxocyclohexanecarbaldehyde

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 84%
methyl 2,5-dihydro-4-(1-methylethyl)-γ,5-dioxo-2-oxazol-undecanoate
152343-05-0

methyl 2,5-dihydro-4-(1-methylethyl)-γ,5-dioxo-2-oxazol-undecanoate

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

11-formyl-9-oxo-undecanoic acid methyl ester
50266-44-9

11-formyl-9-oxo-undecanoic acid methyl ester

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 80%
2,5-dihydro-4-(1-methylethyl)-5-oxo-2-(3-oxobutyl)-oxazol-5-one
152343-03-8

2,5-dihydro-4-(1-methylethyl)-5-oxo-2-(3-oxobutyl)-oxazol-5-one

A

4-oxopentanal
626-96-0

4-oxopentanal

B

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A 76%
B n/a
methyl 2,5-dihydro-4-(1-methylethyl)-5-oxo-2-oxazol-propionate
152343-04-9

methyl 2,5-dihydro-4-(1-methylethyl)-5-oxo-2-oxazol-propionate

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

4-oxobutanoic acid methyl ester
13865-19-5

4-oxobutanoic acid methyl ester

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 72%
2,5-dihydro-4-(1-methylethyl)-2-(3-oxocyclopentyl)-oxazol-5-one
152343-07-2

2,5-dihydro-4-(1-methylethyl)-2-(3-oxocyclopentyl)-oxazol-5-one

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

3-formylcyclopentanone
77852-95-0, 65550-06-3

3-formylcyclopentanone

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 70%
2-trifluoromethyl-4-isopropyl-Δ3-oxazolin-5-one
2357-39-3

2-trifluoromethyl-4-isopropyl-Δ3-oxazolin-5-one

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With water; sodium hydroxide at 20℃; for 12h; Inert atmosphere;69%
2,5-dihydro-4-(1-methylethyl)-2-(2-nitroethyl)-oxazol-5-one
152343-08-3

2,5-dihydro-4-(1-methylethyl)-2-(2-nitroethyl)-oxazol-5-one

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

3-nitropropanaldehyde
58657-26-4

3-nitropropanaldehyde

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 64%
2-[((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-hydroxy-methyl]-4-isopropyl-2H-oxazol-5-one

2-[((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-hydroxy-methyl]-4-isopropyl-2H-oxazol-5-one

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

D-erythrose
583-50-6

D-erythrose

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 59%
2,5-dihydro-4-(1-methylethyl)-5-oxo-2-(α-phenyl)-oxazolemethanol

2,5-dihydro-4-(1-methylethyl)-5-oxo-2-(α-phenyl)-oxazolemethanol

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

(2-Oxo-1-phenyl-ethoxy)-phenyl-acetaldehyde

(2-Oxo-1-phenyl-ethoxy)-phenyl-acetaldehyde

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 51%
2-[Hydroxy-((S)-2-phenyl-[1,3]dioxan-4-yl)-methyl]-4-isopropyl-2H-oxazol-5-one

2-[Hydroxy-((S)-2-phenyl-[1,3]dioxan-4-yl)-methyl]-4-isopropyl-2H-oxazol-5-one

A

L-erythro-4-deoxy-pentose
18439-27-5

L-erythro-4-deoxy-pentose

B

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A 49%
B n/a
2,5-dihydro-2-(1-hydroxyethyl)-4-(1-methylethyl)-oxazol-5-one

2,5-dihydro-2-(1-hydroxyethyl)-4-(1-methylethyl)-oxazol-5-one

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

2-(1-Methyl-2-oxo-ethoxy)-propionaldehyde

2-(1-Methyl-2-oxo-ethoxy)-propionaldehyde

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 44%
2,5-dihydro-4-(1-methylethyl)-5-oxo-2-oxazol-propionic aldehyde

2,5-dihydro-4-(1-methylethyl)-5-oxo-2-oxazol-propionic aldehyde

A

butanedial
638-37-9

butanedial

B

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A 38%
B n/a
2,5-dihydro-4-(1-methylethyl)-5-oxo-2-<α-(2-nitrophenyl)>-oxazolemethanol

2,5-dihydro-4-(1-methylethyl)-5-oxo-2-<α-(2-nitrophenyl)>-oxazolemethanol

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

(2-Nitro-phenyl)-[1-(2-nitro-phenyl)-2-oxo-ethoxy]-acetaldehyde

(2-Nitro-phenyl)-[1-(2-nitro-phenyl)-2-oxo-ethoxy]-acetaldehyde

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran Ambient temperature;A n/a
B 37%
pyridine
110-86-1

pyridine

tetrachloromethane
56-23-5

tetrachloromethane

N-Bromosuccinimide
128-08-5

N-Bromosuccinimide

2-hydroxy-3-methylbutanenitrile
15344-34-0

2-hydroxy-3-methylbutanenitrile

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

isobutyraldehyde
78-84-2

isobutyraldehyde

tetrachloromethane
56-23-5

tetrachloromethane

2-bromo-3-methyl-crotonic acid
1578-14-9

2-bromo-3-methyl-crotonic acid

A

(E)-4-hydroxy-3-methylbut-2-enoic acid
44647-19-0

(E)-4-hydroxy-3-methylbut-2-enoic acid

B

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

C

2-hydroxy-3-methylbut-3-enoic acid
91496-47-8

2-hydroxy-3-methylbut-3-enoic acid

Conditions
ConditionsYield
at 100℃;
tetrachloromethane
56-23-5

tetrachloromethane

2-hydroxy-3-methylbut-3-enoic acid
91496-47-8

2-hydroxy-3-methylbut-3-enoic acid

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

5-methyl-3-hexene-2-one
5166-53-0

5-methyl-3-hexene-2-one

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With potassium permanganate
With permanganate(VII) ion Oxydation;
L-valine
72-18-4

L-valine

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With sodium hydroxide; potassium hexacyanoferrate(III) In water at 55℃; Rate constant; Kinetics; Mechanism; var. reagents conc.;
With potassium nitrososulfonate In various solvent(s) at 26.9℃; Thermodynamic data; Rate constant; ΔH (activ.), ΔS (activ.);
With kidneys-extracts
D,L-valine
516-06-3

D,L-valine

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With kidneys-extracts
With perchloric acid; hexachloroiridate(IV) at 34.9℃; Rate constant; Kinetics; Thermodynamic data; var. temp.; ΔH(excit.), ΔG(excit.), ΔS(excit.);
With pyridine-4-carbaldehyde; hydrogenchloride; 1,8-diazabicyclo[5.4.0]undec-7-ene 1.) DMF, r.t., 5 h; Yield given. Multistep reaction;
Multi-step reaction with 2 steps
1: (heating)
2: aq. NaOH
View Scheme
With ω-transaminase
2-hydroxy-3-methylbutanoic acid
4026-18-0, 17407-55-5, 17407-56-6, 600-37-3

2-hydroxy-3-methylbutanoic acid

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With Fructose 1,6-bisphosphate; Bacillus stearothermophilus; triethanolamine hydrochloride; NADH at 25℃; Rate constant; Equilibrium constant; also in presence of Gln102 or Asn enzyme;
With potassium hydroxide; potassium permanganate at 20℃;
isobutyryl cyanide
42867-39-0

isobutyryl cyanide

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With hydrogenchloride
2,5-Dimethyl-4-hexen-3-ol
60703-31-3

2,5-Dimethyl-4-hexen-3-ol

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With potassium permanganate
α-chloro β-dimethyl acrylic acid
15052-93-4

α-chloro β-dimethyl acrylic acid

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With sodium hydroxide
2-bromo-3-methyl-crotonic acid
1578-14-9

2-bromo-3-methyl-crotonic acid

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With sodium hydroxide
2-isopropyl-5-methyl-hex-2-enal
35158-25-9

2-isopropyl-5-methyl-hex-2-enal

A

3-methylbutyric acid
503-74-2

3-methylbutyric acid

B

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With potassium permanganate
dimethyl-oxalacetic acid
7346-12-5

dimethyl-oxalacetic acid

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With water; copper(II) ion Decarboxylation.pH 2-7;
With aluminium(III) ion; water Decarboxylation.pH 2-7;
With water; nickel(II) Decarboxylation.pH 2-7;
With water; manganese(II) Decarboxylation.pH 2-7;
at 25℃; Kinetics; Wss. Loesungen vom pH 0 bis pH 9, auch in Gegenwart verschiedener Metall-Ionen..Decarboxylation;
diethyl 3,3-dimethyl-2-ketosuccinate
5447-64-3

diethyl 3,3-dimethyl-2-ketosuccinate

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Conditions
ConditionsYield
With sulfuric acid
With hydrogenchloride
With hydrogen bromide; acetic acid
Sucrose
57-50-1

Sucrose

A

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

B

2-oxo-propionic acid
127-17-3

2-oxo-propionic acid

Conditions
ConditionsYield
With ammonium salts; Aspergillus niger; sulfite(2-)
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

Acetanilid
103-84-4

Acetanilid

N-(2-iso-butyrylphenyl)acetamide
1239986-59-4

N-(2-iso-butyrylphenyl)acetamide

Conditions
ConditionsYield
With ammonium peroxydisulfate; palladium(II) trifluoroacetate In diethylene glycol dimethyl ether at 20℃;93%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

(R)-3-((2S,3S)-3-Amino-2-hydroxy-4-phenyl-butyryl)-thiazolidine-4-carboxylic acid tert-butylamide; hydrochloride

(R)-3-((2S,3S)-3-Amino-2-hydroxy-4-phenyl-butyryl)-thiazolidine-4-carboxylic acid tert-butylamide; hydrochloride

(R)-3-[(2S,3S)-2-Hydroxy-3-(3-methyl-2-oxo-butyrylamino)-4-phenyl-butyryl]-thiazolidine-4-carboxylic acid tert-butylamide

(R)-3-[(2S,3S)-2-Hydroxy-3-(3-methyl-2-oxo-butyrylamino)-4-phenyl-butyryl]-thiazolidine-4-carboxylic acid tert-butylamide

Conditions
ConditionsYield
With 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine89%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

calcium 3-methyl-2-oxobutanoate

calcium 3-methyl-2-oxobutanoate

Conditions
ConditionsYield
Stage #1: 3-methyl-2-ketobutanoic acid With pyrographite; potassium hydroxide In water pH=7; Reflux; Large scale;
Stage #2: With calcium chloride In water at 0.2℃; for 3h; Solvent; Reagent/catalyst; Reflux; Large scale;
87.5%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

(S)-2-Hydroxy-3-methylbutanoic acid
17407-55-5

(S)-2-Hydroxy-3-methylbutanoic acid

Conditions
ConditionsYield
With NAD; hydrogen In hydrogenchloride for 42h; Ambient temperature;86%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

methyl 3-methyl-2-ketobutanoate
3952-67-8

methyl 3-methyl-2-ketobutanoate

Conditions
ConditionsYield
In diethyl ether at 0℃;84%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

4-methoxybenzoic acid hydrazide
3290-99-1

4-methoxybenzoic acid hydrazide

2-(4-Methoxybenzoylhydrazono)-3-methylbuttersaeure
152332-37-1

2-(4-Methoxybenzoylhydrazono)-3-methylbuttersaeure

Conditions
ConditionsYield
With hydrogenchloride In ethanol; water at 60℃; for 2h;84%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

potassium phenyltrifluoborate

potassium phenyltrifluoborate

phenyl isopropyl ketone
611-70-1

phenyl isopropyl ketone

Conditions
ConditionsYield
With dipotassium peroxodisulfate; palladium diacetate In water; dimethyl sulfoxide at 20℃; for 3h;83%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

(S)-tert-butyl 2-(hydroxyamino)-3-methylbutanoate
1124196-10-6

(S)-tert-butyl 2-(hydroxyamino)-3-methylbutanoate

tert-butyl 2-(N-hydroxy-3-methyl-2-oxobutanamido)-3-methylbutanoate

tert-butyl 2-(N-hydroxy-3-methyl-2-oxobutanamido)-3-methylbutanoate

Conditions
ConditionsYield
Stage #1: 3-methyl-2-ketobutanoic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 20℃; for 15h; Inert atmosphere;
Stage #2: (S)-tert-butyl 2-(hydroxyamino)-3-methylbutanoate With sodium carbonate In dichloromethane; water at 20℃; for 30h; Inert atmosphere;
82%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

3-Phenylpropenol
104-54-1

3-Phenylpropenol

cinnamyl 3-methyl-2-oxobutanoate

cinnamyl 3-methyl-2-oxobutanoate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane80%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

2-(aminocarbonyl)-1-pyrrolidinecarboxylic acid, phenylmethyl ester
93188-01-3

2-(aminocarbonyl)-1-pyrrolidinecarboxylic acid, phenylmethyl ester

Z-Pro-Δ Val
113586-10-0

Z-Pro-Δ Val

Conditions
ConditionsYield
toluene-4-sulfonic acid In benzene for 10h; Heating;75%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

(S)-2-amino-3-phenylpropionamide hydrochloride
65864-22-4

(S)-2-amino-3-phenylpropionamide hydrochloride

N-2-oxo-3-methylbutanoyl-L-phenylalanine amide

N-2-oxo-3-methylbutanoyl-L-phenylalanine amide

Conditions
ConditionsYield
Stage #1: (S)-2-amino-3-phenylpropionamide hydrochloride With triethylamine In dichloromethane at 4℃;
Stage #2: 3-methyl-2-ketobutanoic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 4 - 20℃; for 2.5h;
74%
allyltrichlorosilane
107-37-9

allyltrichlorosilane

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

2-hydroxy-2-isopropyl-pent-4-enoic acid

2-hydroxy-2-isopropyl-pent-4-enoic acid

Conditions
ConditionsYield
With N,N,N,N,N,N-hexamethylphosphoric triamide; N,N-dimethyl-formamide In tetrahydrofuran at 20℃; for 15h; Addition;73%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

benzoic acid hydrazide
613-94-5

benzoic acid hydrazide

2-Benzoylhydrazono-3-methylbuttersaeure
173973-79-0

2-Benzoylhydrazono-3-methylbuttersaeure

Conditions
ConditionsYield
In water at 65℃; for 2h;70%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

methyl S-((3R,5R)-5-hydroxyoctan-3-yl)-L-cysteinate

methyl S-((3R,5R)-5-hydroxyoctan-3-yl)-L-cysteinate

methyl S-((3R,5R)-5-hydroxyoctan-3-yl)-N-(3-methyl-2-oxobutanoyl)-L-cysteinate

methyl S-((3R,5R)-5-hydroxyoctan-3-yl)-N-(3-methyl-2-oxobutanoyl)-L-cysteinate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In diethyl ether at 0 - 23℃; for 18h;70%
C6H4NCH2CHCCH2
491-35-0

C6H4NCH2CHCCH2

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

2-isopropyl-4-methylquinoline
91879-71-9

2-isopropyl-4-methylquinoline

Conditions
ConditionsYield
With (4s,6s)-2,4,5,6-tetra(9H-carbazol-9-yl)isophthalonitrile; tetraethylammonium hexafluorophosphate; trifluoroacetic acid In acetonitrile at 50℃; Schlenk technique; Electrochemical reaction; Irradiation; Inert atmosphere;68%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

O-benzyl carbamate
621-84-1

O-benzyl carbamate

2-(((benzyloxy)carbonyl)amino)-3-methylbut-2-enoic acid
95863-98-2

2-(((benzyloxy)carbonyl)amino)-3-methylbut-2-enoic acid

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene at 99.85℃; for 8h;67%
With toluene-4-sulfonic acid In benzene at 100℃; for 8h;67%
With toluene-4-sulfonic acid In benzene at 100℃; for 8h;67%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

phenylhydrazine
100-63-0

phenylhydrazine

phenyl isopropyl ketone
611-70-1

phenyl isopropyl ketone

Conditions
ConditionsYield
With oxygen; silver(I) acetate; lithium carbonate In 1,2-dichloro-ethane at 100℃; under 760.051 Torr; for 16h; Schlenk technique; Green chemistry;67%
1,4-pyrazine
290-37-9

1,4-pyrazine

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

2-methyl-1-(pyrazin-2-yl)propan-1-one
86461-66-7

2-methyl-1-(pyrazin-2-yl)propan-1-one

Conditions
ConditionsYield
With ferrous(II) sulfate heptahydrate; ammonium peroxydisulfate; formic acid; dimethyl sulfoxide In dichloromethane; water at 40℃; Minisci Aromatic Substitution;65%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

2-Hydrazino-2-thiazolin-hydrobromid
2643-92-7

2-Hydrazino-2-thiazolin-hydrobromid

2,3-Dihydro-6-isopropyl-5H-thiazolo<2,3-c><1,2,4>-triazin-5-on
90516-89-5

2,3-Dihydro-6-isopropyl-5H-thiazolo<2,3-c><1,2,4>-triazin-5-on

Conditions
ConditionsYield
With sodium ethanolate In ethanol for 18h; Heating;64%
4-Octyne
1942-45-6

4-Octyne

3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

(Z)-3-isopropyl-4-propyl-5-propylidenefuran-2(5H)-one

(Z)-3-isopropyl-4-propyl-5-propylidenefuran-2(5H)-one

Conditions
ConditionsYield
With tetrakis(acetonitrile)copper(I)tetrafluoroborate In toluene at 130℃; for 20h; Inert atmosphere; Sealed tube; diastereoselective reaction;64%
3-methyl-2-ketobutanoic acid
759-05-7

3-methyl-2-ketobutanoic acid

methyl S-((3R,5S)-5-hydroxyoctan-3-yl)-L-cysteinate

methyl S-((3R,5S)-5-hydroxyoctan-3-yl)-L-cysteinate

methyl S-((3R,5S)-5-hydroxyoctan-3-yl)-N-(3-methyl-2-oxobutanoyl)-L-cysteinate

methyl S-((3R,5S)-5-hydroxyoctan-3-yl)-N-(3-methyl-2-oxobutanoyl)-L-cysteinate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In diethyl ether at 0 - 23℃; for 18h;62%

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