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HANGZHOU YUNUO CHEMICAL CO.,LTD

Hangzhou Yunuo Chemical Co., Ltd is located in Hangzhou city China. As a global supplier in the chemical industry, Yunuochem is to create added value for customers around the world. Sticking to such business idea of "Good faith wins the busine

D-Isovaline

Cas:3059-97-0

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's 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. DayangChem can provide different quantities

D(-)-isovaline

Cas:3059-97-0

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 D-Isovaline supplier in China

Cas:3059-97-0

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply D-Isovaline

Cas:3059-97-0

Min.Order:1

Negotiable

Type:Other

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

D-Isovaline

Cas:3059-97-0

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Pharmaceutical Grade CAS 3059-97-0 with competitive price

Cas:3059-97-0

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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

D-Isovaline 3059-97-0

Cas:3059-97-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the

D-Isovaline/ LIDE PHARMA- Factory supply / Best price

Cas:3059-97-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

D(-)-Isovaline CAS:3059-97-0 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 quality organic intermediat

D(-)-Isovaline CAS:3059-97-0

Cas:3059-97-0

Min.Order:1 Gram

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

D-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

D-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

(R)-2-amino-2-methylbutanoic acid

Cas:3059-97-0

Min.Order:4 Kilogram

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

D-Isovaline

Cas:3059-97-0

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

D-Isovaline CAS NO.3059-97-0

Cas:3059-97-0

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology 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 chemicals. W

D(-)-Isovaline

Cas:3059-97-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Manufacturers

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/D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

D-Isovaline cas no. 3059-97-0 98%

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Research Peptide Biotechnology Co., Ltd.

High purity, high success rate, short cycle and moderate priceAppearance:White powder solid Storage:Negative 20 degrees Celsius Package:5mg, 10mg 100mg, 1gram Application:Applied to various scientific research

D-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower 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

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Allgreen Chemical Co.,Ltd

high 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

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Aecochem Corp.

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

D-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

D(-)-Isovaline

Cas:3059-97-0

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

D-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen AmoyChem Co.,Ltd

Amoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi

D-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low priceAppearance:White needles or crystalline powder Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chemlyte Solutions

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

D(-)-Isovaline

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan Russell Chemicals Technology Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

D(-)-Isovaline 3059-97-0

Cas:3059-97-0

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

benzyl (R)-2-azido-2-methylbutanoate
1092559-79-9

benzyl (R)-2-azido-2-methylbutanoate

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With 1% Pd/C; hydrogen In methanol at 20℃;100%
With 10% Pd/C; hydrogen In ethanol at 20℃; optical yield given as %ee;97%
(2R)-2-benzamido-2-methylbutanoic acid
2583-48-4

(2R)-2-benzamido-2-methylbutanoic acid

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With hydrogenchloride at 100℃; for 16h;99%
(2R)-2-ethoxycarbonylamino-2-methylbutyronitrile

(2R)-2-ethoxycarbonylamino-2-methylbutyronitrile

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With hydrogenchloride; methyloxirane93%
(3R,6S)-3-Ethyl-6-isopropyl-3-methyl-5-phenyl-3,6-dihydro-2H-1,4-oxazin-2-one

(3R,6S)-3-Ethyl-6-isopropyl-3-methyl-5-phenyl-3,6-dihydro-2H-1,4-oxazin-2-one

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With hydrogenchloride; water at 150℃; for 24h;89%
(R)-2-Amino-2-methyl-butyric acid ethyl ester
40916-97-0

(R)-2-Amino-2-methyl-butyric acid ethyl ester

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With water; sodium hydroxide In ethanol for 4h; Reflux;89%
(R)-2-amino-2-methylbutanoic acid tert-butyl ester

(R)-2-amino-2-methylbutanoic acid tert-butyl ester

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Stage #1: (R)-2-amino-2-methylbutanoic acid tert-butyl ester With methanesulfonic acid In 1,2-dichloro-ethane at 25 - 80℃; for 13h;
Stage #2: With triethylamine In 1,2-dichloro-ethane at 25℃; for 16h;
76%
(+/-)-2-amino-4-(benzylthio)-2-methylbutanoic acid
88082-98-8

(+/-)-2-amino-4-(benzylthio)-2-methylbutanoic acid

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With ranney nickel In water for 12h; Heating;71%
N-chloroacetyl-D-isovaline
86960-59-0

N-chloroacetyl-D-isovaline

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With hydrogenchloride
DL-isovaline
595-39-1

DL-isovaline

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
durch Vergaerung mit Hefe unter Zusatz von Zucker;
Multi-step reaction with 2 steps
1: Ac2O
2: HCl / methanol
View Scheme
4-ethyl-4-methyl-2-phenyl-4H-oxazol-5-one
2576-61-6

4-ethyl-4-methyl-2-phenyl-4H-oxazol-5-one

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
(i) (racemate resolution using l-menthol), (ii) aq. HBr; Multistep reaction;
Multi-step reaction with 2 steps
1: (i) Na, benzene, (ii) /BRN= 155858/
2: aq. HBr / Heating
View Scheme
2-Benzamido-2-methyl-buttersaeure-l-menthylester

2-Benzamido-2-methyl-buttersaeure-l-menthylester

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With hydrogen bromide Heating;
(R)-2-Formylamino-2-methyl-butyric acid

(R)-2-Formylamino-2-methyl-butyric acid

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With hydrogenchloride In methanol
ethyl bromide
74-96-4

ethyl bromide

L-Alanine methyl ester
10065-72-2

L-Alanine methyl ester

trimethoxonium tetrafluoroborate
420-37-1

trimethoxonium tetrafluoroborate

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Yield given. Multistep reaction;
(RS)-2-amino-2-methylbutanamide
59209-90-4

(RS)-2-amino-2-methylbutanamide

A

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

B

L-isovaline
595-40-4

L-isovaline

Conditions
ConditionsYield
at 37℃; Mycobacterium neoaurum ATCC 25795, pH 8-8.5; Yield given. Title compound not separated from byproducts;
(R)-2-Methyl-2-((R)-2-phenoxy-3-phenyl-propionylamino)-butyric acid

(R)-2-Methyl-2-((R)-2-phenoxy-3-phenyl-propionylamino)-butyric acid

A

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

B

(R)-2-phenoxy-3-phenylpropionic acid
64682-83-3, 120346-42-1

(R)-2-phenoxy-3-phenylpropionic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran; water at 110℃;
(R)-2-Methyl-2-((R)-2-phenoxy-3-phenyl-propionylamino)-butyric acid tert-butyl ester

(R)-2-Methyl-2-((R)-2-phenoxy-3-phenyl-propionylamino)-butyric acid tert-butyl ester

A

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

B

(R)-2-phenoxy-3-phenylpropionic acid
64682-83-3, 120346-42-1

(R)-2-phenoxy-3-phenylpropionic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran; water at 110℃;
(2R,3R)-2-Amino-3-hydroxy-2-methyl-butyric acid; hydriodide

(2R,3R)-2-Amino-3-hydroxy-2-methyl-butyric acid; hydriodide

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With phosphorus; hydrogen iodide In water at 160℃; for 5.5h; freeing from HI salt with Dowex 50 W*8;
(R)-2-Methyl-2-(2,2,2-trichloro-acetylamino)-butyric acid
177273-84-6

(R)-2-Methyl-2-(2,2,2-trichloro-acetylamino)-butyric acid

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
With potassium hydroxide at 50℃;
dl-isovaline

dl-isovaline

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
ueber das Chininsalz der Formylverbindung;
ueber das Brucinsalz der Formylverbindung;
2-amino-2-methyl-butyric acid isopropyl ester; hydrochloride

2-amino-2-methyl-butyric acid isopropyl ester; hydrochloride

A

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

B

L-isovaline
595-40-4

L-isovaline

Conditions
ConditionsYield
With hydrogenchloride Heating;
(Z)-1-iodo-2-methyl-1-butene
52812-57-4

(Z)-1-iodo-2-methyl-1-butene

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 1.) n-BuLi, 1/2CuBr-Me2S
2: DBU / CH2Cl2 / 1 h / -78 °C
3: 60 percent / xylene / 4 h / 140 °C
4: 81 percent / O3, Me2S / 12 h
5: Jones reagent / 0.33 h
6: KOH / 50 °C
View Scheme
2,2,2-Trichloro-N-((R)-1-formyl-1-methyl-propyl)-acetamide
177273-81-3

2,2,2-Trichloro-N-((R)-1-formyl-1-methyl-propyl)-acetamide

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Jones reagent / 0.33 h
2: KOH / 50 °C
View Scheme
2,2,2-Trichloro-N-((E)-(1R,4S)-1-ethyl-4-methoxymethoxy-1,5-dimethyl-hex-2-enyl)-acetamide

2,2,2-Trichloro-N-((E)-(1R,4S)-1-ethyl-4-methoxymethoxy-1,5-dimethyl-hex-2-enyl)-acetamide

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 81 percent / O3, Me2S / 12 h
2: Jones reagent / 0.33 h
3: KOH / 50 °C
View Scheme
2,2,2-Trichloro-acetimidic acid (Z)-(S)-1-((S)-1-methoxymethoxy-2-methyl-propyl)-3-methyl-pent-2-enyl ester

2,2,2-Trichloro-acetimidic acid (Z)-(S)-1-((S)-1-methoxymethoxy-2-methyl-propyl)-3-methyl-pent-2-enyl ester

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 60 percent / xylene / 4 h / 140 °C
2: 81 percent / O3, Me2S / 12 h
3: Jones reagent / 0.33 h
4: KOH / 50 °C
View Scheme
(Z)-(3S,4S)-3-Methoxymethoxy-2,6-dimethyl-oct-5-en-4-ol

(Z)-(3S,4S)-3-Methoxymethoxy-2,6-dimethyl-oct-5-en-4-ol

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: DBU / CH2Cl2 / 1 h / -78 °C
2: 60 percent / xylene / 4 h / 140 °C
3: 81 percent / O3, Me2S / 12 h
4: Jones reagent / 0.33 h
5: KOH / 50 °C
View Scheme
(2R,5R)-2-(t-Butyl)-5-ethyl-3,5-dimethyl-4-oxo-1-imidazolidincarbonsaeure-t-butylester
152033-17-5

(2R,5R)-2-(t-Butyl)-5-ethyl-3,5-dimethyl-4-oxo-1-imidazolidincarbonsaeure-t-butylester

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 1.) 6N HCl; 2.) 1N NaOH / 1.) methanol, 24 h, reflux; 2.) 16 h
2: 90 percent / 4 N HCl / dioxane / 4 h / 80 °C
3: 99 percent / conc. aq. HCl / 16 h / 100 °C
View Scheme
N-benzoyl-D-isovaline-methylamide
161956-11-2

N-benzoyl-D-isovaline-methylamide

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 90 percent / 4 N HCl / dioxane / 4 h / 80 °C
2: 99 percent / conc. aq. HCl / 16 h / 100 °C
View Scheme
(R)-2-Methyl-2-((3R,4S)-2-oxo-3-phenoxy-4-phenyl-azetidin-1-yl)-butyric acid

(R)-2-Methyl-2-((3R,4S)-2-oxo-3-phenoxy-4-phenyl-azetidin-1-yl)-butyric acid

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Li/NH3 / tetrahydrofuran; 2-methyl-propan-2-ol
2: 6 N hydrochloric acid / tetrahydrofuran; H2O / 110 °C
View Scheme
(R)-2-Methyl-2-((3R,4S)-2-oxo-3-phenoxy-4-phenyl-azetidin-1-yl)-butyric acid tert-butyl ester
110510-47-9

(R)-2-Methyl-2-((3R,4S)-2-oxo-3-phenoxy-4-phenyl-azetidin-1-yl)-butyric acid tert-butyl ester

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: CF3COOH
2: Li/NH3 / tetrahydrofuran; 2-methyl-propan-2-ol
3: 6 N hydrochloric acid / tetrahydrofuran; H2O / 110 °C
View Scheme
Multi-step reaction with 2 steps
1: H2 / Pd-C
2: 6 N hydrochloric acid / tetrahydrofuran; H2O / 110 °C
View Scheme
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

(R)-2-((tert-butoxycarbonyl)amino)-2-methylbutanoic acid
123254-58-0

(R)-2-((tert-butoxycarbonyl)amino)-2-methylbutanoic acid

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran Inert atmosphere;97%
2,6-Dichloropyrimidine
3934-20-1

2,6-Dichloropyrimidine

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

(R)-2-((2-chloropyrimidin-4-yl)amino)-2-methylbutanoic acid

(R)-2-((2-chloropyrimidin-4-yl)amino)-2-methylbutanoic acid

Conditions
ConditionsYield
With potassium carbonate In isopropyl alcohol at 90℃; for 5.5h;93%
methanol
67-56-1

methanol

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

methyl (R)-2-amino-2-methyl-butyrate hydrochloride
118725-00-1

methyl (R)-2-amino-2-methyl-butyrate hydrochloride

Conditions
ConditionsYield
With thionyl chloride for 3h; Reflux;93%
potassium cyanate
590-28-3

potassium cyanate

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

(5R)-5-ethyl-5-methyl-imidazolidine-2,4-dione

(5R)-5-ethyl-5-methyl-imidazolidine-2,4-dione

Conditions
ConditionsYield
Stage #1: potassium cyanate; (2R)-2-amino-2-methylbutanoic acid In water at 90℃; for 3h;
Stage #2: With hydrogenchloride In water at 90℃; for 2h;
91%
Stage #1: potassium cyanate; (2R)-2-amino-2-methylbutanoic acid In water at 90℃; for 2h;
Stage #2: With hydrogenchloride In water at 90℃; for 1h;
76%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

4-bromophenyl isocyanate
2493-02-9

4-bromophenyl isocyanate

N-[(4-bromophenyl)carbamoyl]-D-isovaline

N-[(4-bromophenyl)carbamoyl]-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃;85%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

1-fluoro-3-isocyanatobenzene
404-71-7

1-fluoro-3-isocyanatobenzene

N-[(3-fluorophenyl)carbamoyl]-D-isovaline

N-[(3-fluorophenyl)carbamoyl]-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃; for 3h;77%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

p-chlorphenylisocyanate
104-12-1

p-chlorphenylisocyanate

N-[(4-chlorophenyl)carbamoyl]-D-isovaline

N-[(4-chlorophenyl)carbamoyl]-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃; for 4.5h;77%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

4-amino-5-chloro-2-ethoxybenzoic acid
108282-38-8

4-amino-5-chloro-2-ethoxybenzoic acid

(+)-N-(4-amino-5-chloro-2-ethoxybenzoyl)-L-isovaline

(+)-N-(4-amino-5-chloro-2-ethoxybenzoyl)-L-isovaline

Conditions
ConditionsYield
With triethylamine; HATU In N,N-dimethyl-formamide at 50℃; for 5h;74%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

m-chlorophenyl isocyanate
2909-38-8

m-chlorophenyl isocyanate

N-[(3-chlorophenyl)carbamoyl]-D-isovaline

N-[(3-chlorophenyl)carbamoyl]-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃; for 2h;71%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

4-amino 5-bromo 2-methoxy benzoic acid
35290-97-2

4-amino 5-bromo 2-methoxy benzoic acid

(+)-N-(4-amino-5-bromo-2-methoxybenzoyl)-L-isovaline

(+)-N-(4-amino-5-bromo-2-methoxybenzoyl)-L-isovaline

Conditions
ConditionsYield
With triethylamine; HATU In N,N-dimethyl-formamide at 50℃; for 5h;71%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

1-isocyanato-4-trifluoromethoxy-benzene
35037-73-1

1-isocyanato-4-trifluoromethoxy-benzene

(-)-N-{[4-(trifluoromethoxy)phenyl]carbamoyl}-D-isovaline

(-)-N-{[4-(trifluoromethoxy)phenyl]carbamoyl}-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃;68%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

1-(difluoromethoxy)-4-isocyanatobenzene
58417-15-5

1-(difluoromethoxy)-4-isocyanatobenzene

N-{[4-(difluoromethoxy)phenyl]carbamoyl}-D-isovaline

N-{[4-(difluoromethoxy)phenyl]carbamoyl}-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃; for 3.5h;64%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

1-iodo-4-isocyanatobenzene
15845-62-2

1-iodo-4-isocyanatobenzene

N-[(4-iodophenyl)carbamoyl]-D-isovaline

N-[(4-iodophenyl)carbamoyl]-D-isovaline

Conditions
ConditionsYield
With sodium hydroxide In dichloromethane at 20℃;62%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

4-amino-2-ethoxy-5-fluorobenzoic acid

4-amino-2-ethoxy-5-fluorobenzoic acid

(+)-N-(4-amino-2-ethoxy-5-fluorobenzoyl)-L-isovaline

(+)-N-(4-amino-2-ethoxy-5-fluorobenzoyl)-L-isovaline

Conditions
ConditionsYield
With triethylamine; HATU In N,N-dimethyl-formamide at 50℃; for 5h;40%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

4-amino-5-chloro-2-methoxybenzoic acid
7206-70-4

4-amino-5-chloro-2-methoxybenzoic acid

(+)-N-(4-amino-5-chloro-2-methoxybenzoyl)-L-isovaline

(+)-N-(4-amino-5-chloro-2-methoxybenzoyl)-L-isovaline

Conditions
ConditionsYield
Stage #1: 4-amino-5-chloro-2-methoxybenzoic acid With triethylamine; HATU In N,N-dimethyl-formamide at 20℃; for 1h;
Stage #2: (2R)-2-amino-2-methylbutanoic acid In N,N-dimethyl-formamide at 50℃; for 3h;
33%
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

1-Bromo-3-iodobenzene
591-18-4

1-Bromo-3-iodobenzene

(R)-2-((3-bromophenyl)amino)-2-methylbutanoic acid

(R)-2-((3-bromophenyl)amino)-2-methylbutanoic acid

Conditions
ConditionsYield
With copper(l) iodide; caesium carbonate In N,N-dimethyl-formamide at 80℃; for 8h;27.02%
carbon disulfide
75-15-0

carbon disulfide

ethyl bromide
74-96-4

ethyl bromide

(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

(R)-N-Dithiocarbethoxyisovalin
27539-03-3

(R)-N-Dithiocarbethoxyisovalin

Conditions
ConditionsYield
(i) aq. K2CO3, EtOH, (ii) /BRN= 1209224/; Multistep reaction;
(2R)-2-amino-2-methylbutanoic acid
3059-97-0

(2R)-2-amino-2-methylbutanoic acid

(R)-2-amino-2-methylbutan-1-ol
10196-30-2

(R)-2-amino-2-methylbutan-1-ol

Conditions
ConditionsYield
(i) EtOH, SOCl2, (ii) NaBH4; Multistep reaction;

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