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
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inquiryAbout Product Technical Details L-Valine benzyl ester hydrochloride Chemical Properties Melting point 138 °C refractive index
Cas:2462-34-2
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inquiryWith 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 manufacturin
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inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Crystalline Powder Storage:Store in sealed conta
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inquiryL-Valine benzyl ester hydrochloride CAS:2462-34-2 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 qualit
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inquiryHello, 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
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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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inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
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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
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inquiryZibo 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
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inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
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inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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inquirySAGECHEM 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
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
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inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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inquiryISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai
((S)-1-benzylcarbamoyl-2-methyl-propyl)-carbamic acid tert-butyl ester
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane at 20℃; Inert atmosphere; | 100% |
Stage #1: ((S)-1-benzylcarbamoyl-2-methyl-propyl)-carbamic acid tert-butyl ester With trifluoroacetic acid at 20℃; for 1h; Stage #2: With hydrogenchloride In 1,4-dioxane; water | 85% |
With hydrogenchloride In tetrahydrofuran; 1,4-dioxane at 0℃; for 12h; Inert atmosphere; | |
With hydrogenchloride In ethyl acetate at 20℃; for 5h; |
Conditions | Yield |
---|---|
Stage #1: L-valine With hydrogenchloride; iron(III) chloride In 1,2-dichloro-ethane at 20℃; for 0.5h; Stage #2: benzyl alcohol In dichloromethane for 3h; Concentration; Reflux; | 98% |
With thionyl chloride at 5℃; for 5.33333h; Heating; | 70% |
Stage #1: L-valine; benzyl alcohol at 20 - 90℃; Stage #2: With sodium carbonate In water pH=10; Stage #3: With hydrogenchloride In diethyl ether | |
With thionyl chloride at 20℃; Cooling with ice; Inert atmosphere; |
t-Boc-L-valine
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: 85 percent / Et3N / dimethylformamide / 0 - 20 °C 2.1: TFA / 1 h / 20 °C 2.2: 85 percent / HCl / dioxane; H2O View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: 100 percent / Et3N / dioxane; H2O 2.1: 85 percent / Et3N / dimethylformamide / 0 - 20 °C 3.1: TFA / 1 h / 20 °C 3.2: 85 percent / HCl / dioxane; H2O View Scheme |
Conditions | Yield |
---|---|
at 90℃; for 5h; Ionic liquid; Inert atmosphere; |
t-Boc-L-valine
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: caesium carbonate / N,N-dimethyl-formamide / 0.5 h / 0 °C / Inert atmosphere 1.2: 12 h / Inert atmosphere 2.1: hydrogenchloride / tetrahydrofuran; 1,4-dioxane / 12 h / 0 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 12 h / 20 °C / Inert atmosphere 2: hydrogenchloride / 1,4-dioxane / 20 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: dicyclohexyl-carbodiimide; dmap / dichloromethane / 16 h / 0 - 20 °C 2: hydrogenchloride / ethyl acetate / 5 h / 20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: caesium carbonate / N,N-dimethyl-formamide / 0.5 h / 0 °C / Inert atmosphere 1.2: 12 h / Inert atmosphere 2.1: hydrogenchloride / tetrahydrofuran; 1,4-dioxane / 12 h / 0 °C / Inert atmosphere View Scheme |
(S)-N(1)-(p-methoxybenzyl)-6-isopropylpiperazine-2,5-dione
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: boron trifluoride diethyl etherate / dichloromethane / 48 h / 0 - 20 °C / Inert atmosphere 2.1: ammonium cerium (IV) nitrate / acetonitrile; water / 18 h / 20 °C 3.1: dichloromethane / 18 h / 0 - 20 °C / Inert atmosphere 4.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere 4.2: 18 h / -78 - 20 °C / Inert atmosphere 5.1: hydrogenchloride / acetonitrile; water / 18 h / 20 °C View Scheme |
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: ammonium cerium (IV) nitrate / acetonitrile; water / 18 h / 20 °C 2.1: dichloromethane / 18 h / 0 - 20 °C / Inert atmosphere 3.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere 3.2: 18 h / -78 - 20 °C / Inert atmosphere 4.1: hydrogenchloride / acetonitrile; water / 18 h / 20 °C View Scheme |
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: dichloromethane / 18 h / 0 - 20 °C / Inert atmosphere 2.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere 2.2: 18 h / -78 - 20 °C / Inert atmosphere 3.1: hydrogenchloride / acetonitrile; water / 18 h / 20 °C View Scheme |
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere 1.2: 18 h / -78 - 20 °C / Inert atmosphere 2.1: hydrogenchloride / acetonitrile; water / 18 h / 20 °C View Scheme |
A
L-valine benzyl ester hydrochloride
B
ethyl (2R)-2-aminobutanoate hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride In water; acetonitrile at 20℃; for 18h; |
O-benzyl 2,2,2-trichloroacetimidate
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: boron trifluoride diethyl etherate / dichloromethane / 48 h / 0 - 20 °C / Inert atmosphere 2.1: ammonium cerium (IV) nitrate / acetonitrile; water / 18 h / 20 °C 3.1: dichloromethane / 18 h / 0 - 20 °C / Inert atmosphere 4.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere 4.2: 18 h / -78 - 20 °C / Inert atmosphere 5.1: hydrogenchloride / acetonitrile; water / 18 h / 20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: dicyclohexyl-carbodiimide; dmap / dichloromethane / 16 h / 0 - 20 °C 2: hydrogenchloride / ethyl acetate / 5 h / 20 °C View Scheme |
4-methoxy-benzaldehyde
L-valine benzyl ester hydrochloride
C20H23NO3
Conditions | Yield |
---|---|
With sodium carbonate In methanol at 20℃; for 18h; | 100% |
L-valine benzyl ester hydrochloride
(S)-3-methyl-2-(2-trifluoromethyl-acryloylamino)-butyric acid benzyl ester
Conditions | Yield |
---|---|
With 1,4-diaza-bicyclo[2.2.2]octane In dichloromethane at 20℃; for 2h; aza-Michael addition; | 98% |
(R)-N-Boc-3,5-dibenzoxyphenylglycine
L-valine benzyl ester hydrochloride
C39H44N2O7
Conditions | Yield |
---|---|
With sodium hydrogencarbonate; 3-[(diethoxyphosphinyl)oxy]-1,2,3-benzotriazin-4(3H)-one In tetrahydrofuran at 0 - 20℃; Inert atmosphere; | 98% |
With sodium hydrogencarbonate; 3-[(diethoxyphosphinyl)oxy]-1,2,3-benzotriazin-4(3H)-one In N,N-dimethyl-formamide at 0 - 20℃; for 25h; |
Fmoc-Pro-OH
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: L-valine benzyl ester hydrochloride With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; Inert atmosphere; Stage #2: Fmoc-Pro-OH With benzotriazol-1-ol In dichloromethane at 0℃; for 0.25h; Inert atmosphere; Stage #3: With dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 18h; Inert atmosphere; | 98% |
Stage #1: Fmoc-Pro-OH; L-valine benzyl ester hydrochloride With benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 0.25h; Inert atmosphere; Stage #2: With dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 18h; Inert atmosphere; | 98% |
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 20℃; for 2h; | 97% |
N-tert-butoxycarbonyl-L-phenylalanine
L-valine benzyl ester hydrochloride
benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate
Conditions | Yield |
---|---|
With C14H16B2O6 In toluene at 80℃; for 48h; Molecular sieve; | 97% |
L-valine benzyl ester hydrochloride
Boc-Asp(OcHex)-Val-OBzl
Conditions | Yield |
---|---|
With 4-methyl-morpholine In tetrahydrofuran at 20℃; for 24h; Substitution; | 96% |
BOC-L-aspartic acid 4-benzyl ester
L-valine benzyl ester hydrochloride
Boc-Asp(OBzl)-Val-OBzl
Conditions | Yield |
---|---|
Stage #1: BOC-L-aspartic acid 4-benzyl ester With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran for 0.333333h; Cooling with ice; Stage #2: L-valine benzyl ester hydrochloride With 4-methyl-morpholine In tetrahydrofuran at 20℃; for 24h; | 96% |
Stage #1: BOC-L-aspartic acid 4-benzyl ester With 1-hydroxybenzotriazol-hydrate; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃; for 0.5h; Stage #2: L-valine benzyl ester hydrochloride With 4-methyl-morpholine In tetrahydrofuran at 20℃; for 8h; pH=8.5; Further stages.; | 95% |
(S)-2-Hydroxy-3-methylbutanoic acid
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 0 - 20℃; | 95% |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In acetonitrile at 0 - 20℃; | 92% |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; | 92% |
With potassium carbonate; dicyclohexyl-carbodiimide 1.) water, 2.) CH2Cl2, 15 deg C, 5 h; Yield given. Multistep reaction; |
t-Boc-L-valine
L-valine benzyl ester hydrochloride
(S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanamido)-3-methylbutanoate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; dicyclohexyl-carbodiimide In N,N-dimethyl-formamide at 20℃; Acylation; | 95% |
L-valine benzyl ester hydrochloride
carbonochloridic acid, chloromethyl ester
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 20℃; for 0.5h; | 95% |
L-valine benzyl ester hydrochloride
N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole
Conditions | Yield |
---|---|
Stage #1: L-valine benzyl ester hydrochloride With sodium hydroxide In water; ethyl acetate for 0.333333h; pH=10 - 12; Stage #2: N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole In ethyl acetate at 55 - 60℃; Stage #3: With phosphonic Acid In ethyl acetate for 1h; | 95% |
L-valine benzyl ester hydrochloride
N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole
Conditions | Yield |
---|---|
Stage #1: L-valine benzyl ester hydrochloride With sodium hydroxide In water pH=10 - 12; Stage #2: N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole In ethyl acetate at 55 - 60℃; Stage #3: With phosphorous acid In ethyl acetate for 1h; | 95% |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In dichloromethane; water at 0 - 20℃; | 95% |
With sodium hydrogencarbonate In dichloromethane; water | 95% |
L-valine benzyl ester hydrochloride
(3S)-2-tert-butoxycarbonyl-1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid
N-[(3S)-N-Boc-1,2,3,4-tetrahydro-β-carboline-3-carboxyl]-L-valine benzyl ester
Conditions | Yield |
---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0 - 20℃; for 18h; | 94% |
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0 - 20℃; for 18h; pH=8 - 9; | 94% |
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: L-valine benzyl ester hydrochloride With sodium carbonate In acetonitrile at 20℃; for 16h; Stage #2: With 1-(fluorosulfuryl)-2,3-dimethyl-1H-imidazol-3-ium trifluoromethanesulfonate at 20℃; for 1h; | 94% |
(C5H9O2)(NHCHCO)2(C4H9)(C3H7)(NHC4H4NO3)
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile | 93% |
Conditions | Yield |
---|---|
Stage #1: L-valine benzyl ester hydrochloride With triethylamine In dichloromethane at -78℃; for 0.0833333h; Schlenk technique; Stage #2: trifluoromethylsulfonic anhydride In dichloromethane at -78℃; Schlenk technique; | 93% |
2-(3-(trifluoromethoxy)phenyl)acetic acid
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide Cooling with ice; | 92.5% |
formic acid cyanomethyl ester
L-valine benzyl ester hydrochloride
N-Formyl-L-valine benzyl ester
Conditions | Yield |
---|---|
With triethylamine In dichloromethane for 12h; Ambient temperature; | 92% |
L-N-Boc-Ala
L-valine benzyl ester hydrochloride
Boc-L-Ala-L-Val-OBzl
Conditions | Yield |
---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0 - 20℃; | 92% |
2,3-dihydro-1,4-benzodioxin-6-carboxylic acid
L-valine benzyl ester hydrochloride
(S)-benzyl 2-(2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamido)-3-methylbutanoate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0 - 25℃; for 18h; Inert atmosphere; | 92% |
L-valine benzyl ester hydrochloride
(E)-3-(4,4,4-trifluorobut-2-enoyl)oxazolidin-2-one
Conditions | Yield |
---|---|
With 2,4,6-trimethyl-pyridine In dichloromethane at 20℃; for 68h; Addition; | 90% |
L-valine benzyl ester hydrochloride
L-valine benzyl ester
Conditions | Yield |
---|---|
With triethylamine In chloroform at 0 - 5℃; for 0.166667h; | 90% |
With sodium hydrogencarbonate In water pH=8 - 9; | |
With sodium carbonate In water |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 90℃; for 12h; Molecular sieve; Sealed tube; Green chemistry; | 90% |
L-valine benzyl ester hydrochloride
Conditions | Yield |
---|---|
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; triethylamine In dichloromethane at 20℃; for 24h; | 90% |
L-valine benzyl ester hydrochloride
(2-trifluoromethyl-acryloylamino)-acetic acid benzyl ester
Conditions | Yield |
---|---|
With 1,4-diaza-bicyclo[2.2.2]octane In tetrachloromethane at 20℃; for 2h; aza-Michael addition; | 89% |
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