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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 quantiti

L-Valine

Cas:72-18-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shanxi Zorui Biotechnology Co.Ltd.

Zorui combines R&D, production and sales into its operations, While continuously providing high-quality raw materials, we also provide and optimize technical solutions for customers to achieve mutual benefit. We adhere to the "quality, integ

L-Valine/ L Valine Medical Grade Amino Acid Powder CAS 72-18-4

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

GUANGZHOU MEDCAN PHARMATECH LTD

1.High quality with good price 2:USP standard 3.be food additive,nutrition enhancer Appearance:white crystalline powder Storage:storage in ambient temperature Package:5-25KG/drum or bag Application:food additives Transportation:by sea or air

L-Valine

Cas:72-18-4

Min.Order:100 Kilogram

Negotiable

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 L-Valine supplier in China

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White crystal or crystalline powder White crystalline powder Identification

High purity L-Valine CAS:72-18-4

Cas:72-18-4

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Manufacturers

inquiry

Kono Chem Co.,Ltd

Product Name: L-Valine Synonyms: (S)-(+)-VALINE;(S)-ALPHA-AMINOISOVALERIC ACID;VALINE, L-;VALINE;2-AMINO-3-METHYLBUTANOIC ACID;2-AMINOISOVALERIC ACID… Founded in 2014, as a professional international pharmaceutical corporation, headquarter

L-Valine

Cas:72-18-4

Min.Order:1 Kilogram

FOB Price: $8.0 / 10.0

Type:Other

inquiry

Jinan Finer Chemical Co., Ltd

Product description: Product name L-Valine CAS number 72-18-4 Assay ≥98% Appearance White crystal powder Capacity 200mt/year Application It is an essential amino acid for the

L-Valine

Cas:72-18-4

Min.Order:10 Gram

FOB Price: $12.0

Type:Lab/Research institutions

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Unique advantages for L-Valine Cas72-18-4 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White crystals or crystalline power Storage:Store at RT Package:25kg/drum Application:A

Hot selling L-Valine Cas72-18-4 with high quality

Cas:72-18-4

Min.Order:100 Kilogram

FOB Price: $10.0 / 13.0

Type:Trading Company

inquiry

Hefei TNJ chemical industry co.,ltd

Specifications L-Valine Cas No.72-18-4 Formula C5H11NO2 Loss on drying 0.3%max Packing 25kg/drums L-Valine L-Valine is an essential amino acid for increased cognitive function and smooth nervous system functioning. L-Valine is a

L-Valine factory

Cas:72-18-4

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

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 L-valine

Cas:72-18-4

Min.Order:1

Negotiable

Type:Other

inquiry

Baoding Faithful Industry Co., Ltd.

Sales: 1.24hours to reply your E-mail 2.Market information trend share with customers Suggestion for purchase decision Reputation: 1.Implementing contract terms strictly 2.Timely solve any discrepancy or goods claims Take our responsibility for loss

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

High Quality Food Grade L-valine 72-18-4 HACCP Manufacturer

Cas:72-18-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Chengdu Baishixing Science and Technology Industry Co., Ltd.

CAS No.: 72-18-4 Other Names: L-2-amino-3-methylbutyric-acid MF: C5H11NO2 EINECS No.: 200-773-6 Place of Origin: Anhui China (Mainland) Type:

L-Valine,72-18-4

Cas:72-18-4

Min.Order:100 Kilogram

Negotiable

Type:Manufacturers

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

ADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,

L-Valine

Cas:72-18-4

Min.Order:10 Metric Ton

Negotiable

Type:Manufacturers

inquiry

HANGZHOU CLAKE BIOTECH CO.,LTD

1. GMP AVALIABLE ; 2. IN STOCK 3. FAST REPLY QUALIFED ; EFFICIENCY; RESPONSIBLE Package:25kg/drum Application:active pharmaceutical ingredient Transportation:air/sea both ok

L-VALINE

Cas:72-18-4

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

inquiry

COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

L-Valine

Cas:72-18-4

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA. Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives,

Factory supply L-Valine

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

Hebei yanxi chemical co., LTD is a professional research, development and production . enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environmental protection

L-Valine CAS NO.72-18-4

Cas:72-18-4

Min.Order:1 Kilogram

FOB Price: $11.0 / 16.0

Type:Trading Company

inquiry

Hubei DiBo chemical co., LTD

Name:L-valine Name:L-valine CAS no: 72-18-4 Grade: food industry Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability Product Technolo

L-valine/cas:72-18-4/high-quality

Cas:72-18-4

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Henan Tianfu Chemical Co., Ltd.

L-Valine Basic information Amino acids The main effect of feed additives Content Analysis Toxicity Maximum level Chemical propertyApplications Synthetic method Product Name: L-Valine

L-Valine_

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturing

L-Valine CAS NO.72-18-4

Cas:72-18-4

Min.Order:1 Kilogram

FOB Price: $10.0 / 30.0

Type:Trading Company

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

New production CAS 72-18-4 with best quality

Cas:72-18-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: High quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Factory Directly Supply L-Valine High Purity Aminoisovaleric Acid CAS 72-18-4

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Formula:C5H11NO2 Molecular Weight:117.15 Deleted CAS:7004-03-7|16872-32-5 Synonyms:Valine,L- (8CI);(+)-2-Amino-3-methylbutyric acid;(2S)-2-Amino-3-methylbutanoic acid;(S)-2-Amino-3-methylbutanoic acid;(S)-Valine;(S)-a-Amino-b-methylbutyric ac

L-Valine CAS: 72-18-4

Cas:72-18-4

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Hubei Vanz Pharm Co.,Ltd

Amino Acid USP AJI cas 72-18-4 99% L-Valine Powder Pharmaceutical Raw material Pharmaceutical grade MOQ: 1kg Form: Powder Colour: White Test: HPLC Function: amino acid Grade:

Nutrional Amino Acid USP Aji CAS 72-18-4 99% L-Valine Powder

Cas:72-18-4

Min.Order:100 Gram

Negotiable

Type:Trading Company

inquiry

Hubei Langyou International Trading Co., Ltd

Advantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best service is

L-Valine CAS NO 72-18-4

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Appearance:White powder Storage:2-8°C Package:25kg/drum Application:Amino acids drugs, nutritional supplements. It can be used as the main component of aminophenol transfusion and synthesize aminophenol. L-Valine is one of the three branched-chain

L-Valine factory price

Cas:72-18-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

HANWAYS CHEMPHARM CO.,LIMITED

1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Name: V-Valine Structure: Formula: C5H11NO2 Molecular Weight : 117.15 Synonyms: (S)-alpha-Aminoisovalericacid,(L)-2-Amino-3-methylbutanoicacid;Valine(V)Solution,

V-Valine

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

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

L-Valine 72-18-4

Cas:72-18-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Synthetic route

N-carbamoyl-valine
26081-00-5

N-carbamoyl-valine

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With NH4Cl-NH4OH buffer pH 8.5; nickel dichloride at 60℃; for 24h; N-carbamyl-L-amino acid aminohydrolase;100%
With Tris-HCl buffer; N-carbamoyl-L-amino acid hydrolase; iron(II) sulfate at 30℃; for 2h;
With sodium phosphate buffer; N-carmamyl-L-amino acid aminohydrolase of Pseudomonas sp. strain NS671; water; manganese(II) at 30℃; for 0.5h; Product distribution;18.9 mmol
Proc-Val-OH
439912-46-6

Proc-Val-OH

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With resin bound tetrathiomolybdate In methanol at 28℃; for 1.5h; ultrasonic bath;100%
2C16H16O4*C5H11NO2

2C16H16O4*C5H11NO2

A

L-valine
72-18-4

L-valine

B

(S)-2-hydroxy-3-methoxy-3,3-diphenylpropionic acid
178306-52-0

(S)-2-hydroxy-3-methoxy-3,3-diphenylpropionic acid

Conditions
ConditionsYield
In ethyl acetate at 80℃; for 3h; Solvent;A 97%
B 100%
α-ketoisovalerate
2507-77-9

α-ketoisovalerate

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With ammonium formate; tris hydrochloride; nicotinamide adenine dinucleotide; formate dehydrogenase; phenylalanine dehydrogenase In water at 30℃; for 24h;97%
(2S)-2-(N-tert-Butoxycarbonyl)amino-3-methylbut-3-enoic acid
269742-33-8

(2S)-2-(N-tert-Butoxycarbonyl)amino-3-methylbut-3-enoic acid

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethyl acetate at 20℃; for 3h; Catalytic hydrogenation;94%
t-Boc-L-valine
13734-41-3

t-Boc-L-valine

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With tetradecyl(trihexyl)phosphonium bistriflamide; trifluoroacetic acid at 130℃; for 0.166667h; Ionic liquid;93%
at 140℃; for 2h;70%
at 130℃; for 1h;
Multi-step reaction with 4 steps
1.1: triethylamine; chloroformic acid ethyl ester / dichloromethane / 1 h / 20 °C / Inert atmosphere
1.2: 2 h / 20 °C / Inert atmosphere
2.1: hydrogenchloride / water; methanol / 4 h / 0 - 20 °C / Inert atmosphere
3.1: N,N-dimethyl-formamide / 5 h / Inert atmosphere; Reflux
4.1: hydrogenchloride; acetic acid / water; toluene / 44 h / 110 °C / Inert atmosphere
View Scheme
D,L-valine
516-06-3

D,L-valine

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With D-amino acid oxidase; E. coli branched-chain amino acid aminotransferase In water at 37℃; for 72h; Tris buffer, pH 8.5, 1mM EDTA, monosodium glutamate, bovine serum albumin, catalase, pyridoxal 5'-phosphate;90%
mit Hilfe eines Enzym-Praeparats aus Schweine-Nieren;
bei der Vergaerung mit Hefe unter Zusatz von Zucker;
C5H11NO2*H3N*ClH

C5H11NO2*H3N*ClH

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With ruthenium nanoparticles dispersed in a polyvinylpyrrolidone matrix; amberlyst A-21 In methanol; dichloromethane89%
Fmoc-Val-OH
68858-20-8

Fmoc-Val-OH

A

L-valine
72-18-4

L-valine

B

9-methylene-fluorene
4425-82-5

9-methylene-fluorene

Conditions
ConditionsYield
With dimethyl sulfoxide at 120℃; for 0.25h; Microwave irradiation;A 88%
B n/a
Nmoc-Val-OH

Nmoc-Val-OH

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With sodium tetrahydroborate In methanol; aq. phosphate buffer at 20℃; for 1.33333h; Cooling with ice; Sealed tube;88%
(2R)-N-<(2S)-2-<amino>-3-methylbutan-1-oyl>bornane-10,2-sultam
127556-10-9

(2R)-N-<(2S)-2-<amino>-3-methylbutan-1-oyl>bornane-10,2-sultam

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride; lithium hydroxide 1.) THF/water, r.t., 24 h, 2.) THF/water 2 : 1, r.t., 24 h;87%
trans-cyclo(D-Ala-Val)
15136-27-3

trans-cyclo(D-Ala-Val)

A

D-Alanine
338-69-2

D-Alanine

B

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride; waterA 86%
B n/a
With hydrogenchlorideA 86%
B n/a
With hydrogenchloride; water for 24h; Heating;
((S)-1-Cyano-2-methyl-propyl)-carbamic acid methyl ester
631921-65-8

((S)-1-Cyano-2-methyl-propyl)-carbamic acid methyl ester

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride In water for 7h; Heating;85%
(2S,5S)-N-<(S)-N-bis(methylthio)methylenevalyl>-2,5-bis(methoxymethoxymethyl)pyrrolidine
108437-93-0

(2S,5S)-N-<(S)-N-bis(methylthio)methylenevalyl>-2,5-bis(methoxymethoxymethyl)pyrrolidine

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride for 4h; Heating;81%
(3RS,6S)-3-[di(methoxycarbonyl)methyl]-6-isopropyl-2,5-piperazinedione

(3RS,6S)-3-[di(methoxycarbonyl)methyl]-6-isopropyl-2,5-piperazinedione

A

L-valine
72-18-4

L-valine

B

D-aspartic acid hydrochloride
71855-54-4

D-aspartic acid hydrochloride

C

L-aspartic acid hydrochloride
17585-59-0

L-aspartic acid hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; water at 100℃; for 24h;A 81%
B n/a
C n/a
(3S,5S)-3-Isopropyl-5-phenyl-morpholin-2-one
202347-80-6

(3S,5S)-3-Isopropyl-5-phenyl-morpholin-2-one

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogen; trifluoroacetic acid; palladium dihydroxide In methanol; water under 3750.3 Torr; for 24h;78%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride Heating;70%
methanol
67-56-1

methanol

L-Tyrosyl-L-valine

L-Tyrosyl-L-valine

A

benzyl methyl ether
538-86-3

benzyl methyl ether

B

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With potassium hydroxide; [bis(acetoxy)iodo]benzene at 0 - 5℃; for 1.5h;A 65%
B n/a
(3S)-1-[(R)-1-phenylethyl]-3-(propan-2-yl)-1,4-diazaspiro[4.5]decan-2-one

(3S)-1-[(R)-1-phenylethyl]-3-(propan-2-yl)-1,4-diazaspiro[4.5]decan-2-one

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride; acetic acid In water; toluene at 110℃; for 44h; Inert atmosphere;65%
(1R,2R,3R,5R)-1-((S)-1-Cyano-2-methyl-propylamino)-5-isopropenyl-2-methyl-cyclohexane-1,3-dicarbonitrile
155486-42-3

(1R,2R,3R,5R)-1-((S)-1-Cyano-2-methyl-propylamino)-5-isopropenyl-2-methyl-cyclohexane-1,3-dicarbonitrile

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride at 110℃; for 12h;62%
L-Glycin
56-40-6

L-Glycin

L-Valin-N-carbonsaeureanhydrid
1676-85-3, 2816-12-8, 24601-74-9, 43089-05-0

L-Valin-N-carbonsaeureanhydrid

A

L-valine
72-18-4

L-valine

B

valylglycine
686-43-1

valylglycine

C

Val-Val
3918-94-3

Val-Val

D

N-carbamoylglycine
462-60-2

N-carbamoylglycine

E

oligomers of val

oligomers of val

Conditions
ConditionsYield
With water; potassium hydroxide; potassium borate buffer at 3℃; Product distribution; effect of use of various amino acid and NCA with various concentrations; effect of use various temp.; extent of hydrolysis;A n/a
B 57.4%
C n/a
D n/a
E n/a
sodium 3-methyl-2-oxobutyrate
3715-29-5

sodium 3-methyl-2-oxobutyrate

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With zinc(II) perchlorate; (R)-15-amino-methyl-14-hydroxy-5,5-dimethyl-2,8-dithia<9>(2,5)pyridinophane In methanol for 24h; Ambient temperature;57%
With ammonium sulfate; NADP+-specific glutamate dehydrogenase from Pseudomonas putida, I406F mutant; NADPH In aq. phosphate buffer at 35℃; pH=7.5; Reagent/catalyst; Green chemistry; Enzymatic reaction; enantioselective reaction;
3,3-dimethyl-D-cysteine
52-67-5

3,3-dimethyl-D-cysteine

A

D-Val-OH
640-68-6

D-Val-OH

B

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
nickel In water for 1h; Product distribution; Ambient temperature; further amounts of catalyst;A 45%
B n/a
Conditions
ConditionsYield
With methanol; brucine ueber mehrere Stufen;
N-benzoyl-D,L-valine
2901-80-6

N-benzoyl-D,L-valine

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
mit Hilfe eines Enzym-Praeparats aus Pseudomonas;
N-benzoyl-D,L-valine
2901-80-6

N-benzoyl-D,L-valine

A

L-valine
72-18-4

L-valine

B

(2R)-2-(benzoylamino)-3-methylbutyric acid
2901-80-6, 5699-79-6, 80394-38-3

(2R)-2-(benzoylamino)-3-methylbutyric acid

Conditions
ConditionsYield
With soil bacteria
Nα-[2-(4-biphenylyl)-2-propyloxycarbonyl]-L-valine
25692-88-0

Nα-[2-(4-biphenylyl)-2-propyloxycarbonyl]-L-valine

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With acetic acid at 22 - 25℃; Rate constant; other reaction partners;
2-iodo-propane
75-30-9

2-iodo-propane

Glycine tert-butyl ester
6456-74-2

Glycine tert-butyl ester

A

D-Val-OH
640-68-6

D-Val-OH

B

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
Isobutyronitrile
78-82-0

Isobutyronitrile

L-valine
72-18-4

L-valine

Conditions
ConditionsYield
With perchloric acid; N,N-Dichlorobenzenesulfonamide In methanol; water at 29.9℃; Equilibrium constant;
methanol
67-56-1

methanol

L-valine
72-18-4

L-valine

L-valine methylester hydrochloride
6306-52-1

L-valine methylester hydrochloride

Conditions
ConditionsYield
With thionyl chloride at 0 - 20℃;100%
With thionyl chloride at 20℃; Cooling with ice; Inert atmosphere;100%
Stage #1: L-valine With thionyl chloride at 0℃; for 4.16667h; Reflux;
Stage #2: methanol
100%
phthalic anhydride
85-44-9

phthalic anhydride

L-valine
72-18-4

L-valine

N-phthaloyl L-valine
6306-54-3

N-phthaloyl L-valine

Conditions
ConditionsYield
at 135℃;100%
at 140℃; for 0.166667h;98%
In melt at 140℃; for 0.25h;98%
L-valine
72-18-4

L-valine

benzyl chloroformate
501-53-1

benzyl chloroformate

(S)-N-(benzyloxycarbonyl)valine
1149-26-4

(S)-N-(benzyloxycarbonyl)valine

Conditions
ConditionsYield
With sodium hydrogencarbonate In water Inert atmosphere;100%
With sodium hydroxide In water at 0 - 20℃;100%
With potassium carbonate In water at 0 - 2℃; pH=1.5 - Ca. 2; Reagent/catalyst; pH-value; Temperature; Solvent;99%
phosgene
75-44-5

phosgene

L-valine
72-18-4

L-valine

(S)-4-isopropyloxazolidine-2,5-dione
24601-74-9

(S)-4-isopropyloxazolidine-2,5-dione

Conditions
ConditionsYield
In tetrahydrofuran at 40℃; for 1.5h;100%
In tetrahydrofuran at 40℃; for 5h;99.7%
In tetrahydrofuran; toluene at 50 - 60℃; for 4h;96%
ethanol
64-17-5

ethanol

L-valine
72-18-4

L-valine

L-valine ethyl ester
17431-03-7

L-valine ethyl ester

Conditions
ConditionsYield
With thionyl chloride at -10℃; Heating / reflux;100%
With thionyl chloride at -10℃; Heating / reflux;100%
With hydrogenchloride for 12h; Reflux;81.5%
L-valine
72-18-4

L-valine

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

t-Boc-L-valine
13734-41-3

t-Boc-L-valine

Conditions
ConditionsYield
With triethylamine In 1,4-dioxane; water100%
With sodium hydroxide In 1,4-dioxane; water at 0℃;100%
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 16h;100%
L-valine
72-18-4

L-valine

2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

(S)-1-isobutoxy-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate
13018-45-6

(S)-1-isobutoxy-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

Conditions
ConditionsYield
In water; toluene for 24h; Reflux; Dean-Stark;100%
In benzene Heating;84%
In benzene Heating;
L-valine
72-18-4

L-valine

phenyl chloroformate
1885-14-9

phenyl chloroformate

(2S)-3-Methyl-2-(phenoxycarbonyl)aminobutyric acid
126147-70-4

(2S)-3-Methyl-2-(phenoxycarbonyl)aminobutyric acid

Conditions
ConditionsYield
With sodium hydroxide; potassium hydrogencarbonate for 1.5h; Ambient temperature;100%
With aluminum oxide; lithium chloride; lithium hydroxide In water at -20 - -10℃; for 5h; pH=9.5 - 10.2; Schotten-Baumann Reaction; Inert atmosphere;92%
Stage #1: L-valine; phenyl chloroformate With sodium hydroxide In water at 0℃; for 5h;
Stage #2: With hydrogenchloride In water pH=2;
75.9%
L-valine
72-18-4

L-valine

Allyl chloroformate
2937-50-0

Allyl chloroformate

N-allyloxycarbonyl-(L)-valine
115491-96-8

N-allyloxycarbonyl-(L)-valine

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h;100%
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h;100%
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h;100%
L-valine
72-18-4

L-valine

azidovaline
40224-47-3

azidovaline

Conditions
ConditionsYield
With imidazole-1-sulfonyl azide hydrochloride; copper(ll) sulfate pentahydrate; potassium carbonate In methanol at 20℃; for 18h;100%
With imidazole-1-sulfonyl azide hydrochloride; potassium carbonate; copper(II) sulfate In methanol at 20℃;100%
With sodium azide; copper(ll) sulfate pentahydrate; trifluoromethylsulfonic anhydride; potassium carbonate In methanol; dichloromethane; water97%
L-valine
72-18-4

L-valine

2-iodobenzyl alcohol
5159-41-1

2-iodobenzyl alcohol

N-(2'-hydroxymethylphenyl)-L-valine
219645-03-1

N-(2'-hydroxymethylphenyl)-L-valine

Conditions
ConditionsYield
With copper(l) iodide; caesium carbonate In dimethyl sulfoxide at 90℃; for 48h;100%
With copper(l) iodide; 2,4-dichlorophenoxyacetic acid dimethylamine; potassium carbonate at 90℃; for 48h;86%
With water; potassium carbonate; copper(l) iodide In N,N-dimethyl acetamide at 90℃; for 48h;81%
L-valine
72-18-4

L-valine

acrylonitrile
107-13-1

acrylonitrile

[N,N-Bis(2-cyanoethyl)]-L-valine
91384-08-6

[N,N-Bis(2-cyanoethyl)]-L-valine

Conditions
ConditionsYield
With sodium hydroxide; water at 100℃; for 24h; Alkylation;100%
2-[tris(perfluorodecyl)silyl]ethoxycarbonyl-O-succimide

2-[tris(perfluorodecyl)silyl]ethoxycarbonyl-O-succimide

L-valine
72-18-4

L-valine

N-FTeoc-valine

N-FTeoc-valine

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran; water at 20℃; for 2h;100%
L-valine
72-18-4

L-valine

2-chloro-4-fluorobenzonitrile
60702-69-4

2-chloro-4-fluorobenzonitrile

N-(3-chloro-4-cyanophenyl)valine

N-(3-chloro-4-cyanophenyl)valine

Conditions
ConditionsYield
With caesium carbonate In dimethyl sulfoxide at 90℃;100%
L-valine
72-18-4

L-valine

naphthalene-1-carbonic acid chloride
879-18-5

naphthalene-1-carbonic acid chloride

N-(1-naphthoyl)-L-valine
215096-58-5

N-(1-naphthoyl)-L-valine

Conditions
ConditionsYield
Stage #1: L-valine With sodium hydroxide In water at 0℃; for 1h; Inert atmosphere;
Stage #2: naphthalene-1-carbonic acid chloride In tetrahydrofuran; water at 20℃; Inert atmosphere;
100%
L-valine
72-18-4

L-valine

C13H13FO
1207290-13-8

C13H13FO

methyl (S)-2-((4-fluoro-2-(hex-1-ynyl)benzylidene)amino)-3-methylbutanoate
1493778-21-4

methyl (S)-2-((4-fluoro-2-(hex-1-ynyl)benzylidene)amino)-3-methylbutanoate

Conditions
ConditionsYield
In dichloromethane at 20℃; Molecular sieve;100%
5-phenylisoxazole-3-carbaldehyde
59985-82-9

5-phenylisoxazole-3-carbaldehyde

L-valine
72-18-4

L-valine

C15H15N2O3(1-)*Li(1+)

C15H15N2O3(1-)*Li(1+)

Conditions
ConditionsYield
With lithium hydride In methanol Reflux;100%
5-phenylisoxazole-3-carbaldehyde
59985-82-9

5-phenylisoxazole-3-carbaldehyde

L-valine
72-18-4

L-valine

C15H15N2O3(1-)*Na(1+)

C15H15N2O3(1-)*Na(1+)

Conditions
ConditionsYield
With sodium methylate In methanol Reflux;100%
5-phenylisoxazole-3-carbaldehyde
59985-82-9

5-phenylisoxazole-3-carbaldehyde

L-valine
72-18-4

L-valine

2C15H15N2O3(1-)*Ca(2+)

2C15H15N2O3(1-)*Ca(2+)

Conditions
ConditionsYield
With calcium hydride In methanol Reflux;100%
L-valine
72-18-4

L-valine

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde
640292-02-0

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde

C16H17N2O3(1-)*Li(1+)

C16H17N2O3(1-)*Li(1+)

Conditions
ConditionsYield
With lithium hydride In methanol Reflux;100%
L-valine
72-18-4

L-valine

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde
640292-02-0

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde

C16H17N2O3(1-)*Na(1+)

C16H17N2O3(1-)*Na(1+)

Conditions
ConditionsYield
With sodium methylate In methanol Reflux;100%
L-valine
72-18-4

L-valine

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde
640292-02-0

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde

2C16H17N2O3(1-)*Ca(2+)

2C16H17N2O3(1-)*Ca(2+)

Conditions
ConditionsYield
With calcium hydride In methanol Reflux;100%
L-valine
72-18-4

L-valine

tetra(n-butyl)ammonium hydroxide
2052-49-5

tetra(n-butyl)ammonium hydroxide

(Sa)-3,3'-diformyl-2,2'-dihydroxy-1,1'-binaphthalene

(Sa)-3,3'-diformyl-2,2'-dihydroxy-1,1'-binaphthalene

C32H30N2O6(2-)*2C16H36N(1+)

C32H30N2O6(2-)*2C16H36N(1+)

Conditions
ConditionsYield
In methanol at 0℃; for 12h;100%
L-valine
72-18-4

L-valine

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

para-Chlorobenzyl alcohol
873-76-7

para-Chlorobenzyl alcohol

(S)-1-((4-chlorobenzyl)oxy)-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

(S)-1-((4-chlorobenzyl)oxy)-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

Conditions
ConditionsYield
In water; toluene for 24h; Reflux; Dean-Stark;100%
homoalylic alcohol
627-27-0

homoalylic alcohol

L-valine
72-18-4

L-valine

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

(S)-1-(but-3-en-1-yloxy)-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

(S)-1-(but-3-en-1-yloxy)-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

Conditions
ConditionsYield
In water; toluene for 24h; Reflux; Dean-Stark;100%
L-valine
72-18-4

L-valine

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate
17720-18-2

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate (S)-2-ammonio-3-methylbutanoate

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate (S)-2-ammonio-3-methylbutanoate

Conditions
ConditionsYield
In water pH=5.67; Cooling with ice;100%
L-valine
72-18-4

L-valine

nicotinic acid riboside 5'-monophosphate

nicotinic acid riboside 5'-monophosphate

L-Tryptophan
73-22-3

L-Tryptophan

(S)-1-carboxy-2-(1H-indol-3-yl)ethan-1-aminium (S)-1-carboxy-2-methylpropan-1-aminium 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-((phosphonatooxy)methyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate

(S)-1-carboxy-2-(1H-indol-3-yl)ethan-1-aminium (S)-1-carboxy-2-methylpropan-1-aminium 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-((phosphonatooxy)methyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate

Conditions
ConditionsYield
In water pH=2.24 - 2.49; Inert atmosphere; Cooling with ice;100%
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