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inquiryAs 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
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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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inquiryOur company was built in 2009 with an ISO certificate.In the past 8 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 on.O
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inquiry1.In No Less 10 years exporting experience. you 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 Specializ
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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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inquiryJ&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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inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
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inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
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inquiryHangzhou Fandachem Co.,Ltd, a China-based chemical company, specialize in exporting METHYL (3S)-3-AMINO-3-PHENYLPROPANOATE,cas:37088-66-7, Please contact us by email freely. We are leading exporter in China. If you really need this car
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inquiryHigh 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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inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
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inquirySuperior quality, moderate price & quick delivery. Appearance:white crystalline powder Storage:Sealed in a cool ,dry and microtherm place , avoid light . Package: 1g/bag, 5g/bag, 10g/bag, 100g/bag, 1kg/bag or as per your request Application:It
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inquiryhigh 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
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inquiryTAIHO 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
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inquiry1,we produce and sell good chemicals around the world.2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%.3,our staff consists of highly qualified in
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inquiry(S)-METHYL 3-AMINO-3-PHENYLPROPANOATEAppearance:detailed see specifications Storage:Keep away of light, cool place Package:25kg/drum;200kg/drum Application:An important raw material and intermediate used in Organic Synthesis, Pharmaceuticals Transpor
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inquiryWe 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:intermediate
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inquiryAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
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inquiryWe are committed to providing our customers with the best products and services at the most competitive prices.Appearance:clear light yellow liquid Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use
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inquiry(Z)-3-amino-3-phenylacrylic acid methyl ester
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With di-μ-chloro-bis(1,5-cyclooctadiene)dirhodium; [1'-P(4-CF3Ph)2-2'-(R)-CH(Me)-P(t-Bu)2]ferrocene; hydrogen In 2,2,2-trifluoroethanol at 50℃; under 5171.48 Torr; for 6h; | 97.6% |
With hydrogen; chloro(1,5-cyclooctadiene)rhodium(I) dimer; Josiphos-7 at 50℃; under 5931.67 Torr; | 92 %Chromat. |
methanol
(S)-3-amino-3-phenylpropanoic acid
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With thionyl chloride Heating; | 95% |
With hydrogenchloride In water for 16h; Heating / reflux; | 84% |
sulfuric acid for 24h; Heating / reflux; | 65% |
methyl (S)-3-(benzhydrylamino)-3-phenylpropionate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol at 25℃; under 760 Torr; for 2.5h; Catalytic hydrogenation; | 95% |
methyl 3-oxo-3-phenylpropionate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: methyl 3-oxo-3-phenylpropionate With Ru(OAc)2((R)-dm-segphos); hydrogen; ammonium salicylate In methanol at 85℃; under 22502.3 Torr; for 7h; Autoclave; Stage #2: With sodium carbonate In water; ethyl acetate for 0.5h; optical yield given as %ee; enantioselective reaction; | 84% |
With ammonium acetate; hydrogen; Ru(OCOCH3)2((R)-dm-binap) In methanol at 80℃; under 22502.3 Torr; for 16h; | 40% |
Multi-step reaction with 2 steps 1: NH4OAc / methanol / 5 h / Heating 2: 97.6 percent / [(COD)RhCl]2; H2; [1'-P(4-CF3Ph)2-2'-(R)-CH(Me)-P(t-Bu)2]ferrocene / 2,2,2-trifluoro-ethanol / 6 h / 50 °C / 5171.48 Torr View Scheme | |
Multi-step reaction with 3 steps 1: toluene-4-sulfonic acid / methanol / Reflux 2: (S)-(2-(bis(3,3-dimethylphenyl)(hydroxy)methyl)pyrrolidin-1-yl)(pyridin-2-yl)methanone; trichlorosilane / chloroform / 48 h / -30 °C 3: ammonium cerium (IV) nitrate; water / acetonitrile / 0 - 20 °C View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With trifluoroacetic acid In methanol at 0℃; for 2h; | 73% |
(S)-methyl 3-(4-methoxyphenylamino)-3-phenylpropanoate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With ammonium cerium (IV) nitrate; water In acetonitrile at 0 - 20℃; optical yield given as %ee; | 65% |
methyl (S)-3-amino-3-phenylpropanoate L-(+)-tartaric acid salt
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
In methanol at 20℃; Inert atmosphere; Reflux; Large scale; | 63% |
With sodium hydroxide; water | 0.30 g |
methyl (3S)-3-[(1R)-N-(4-methoxybenzyl)-1-(4-methoxyphenyl)ethylamino]-3-phenylpropanoate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: methyl (3S)-3-[(1R)-N-(4-methoxybenzyl)-1-(4-methoxyphenyl)ethylamino]-3-phenylpropanoate With ammonium cerium(IV) nitrate In water; acetonitrile at 20℃; for 17h; Stage #2: With hydrogenchloride In methanol at 60℃; for 2h; | 60% |
methyl 3-amino-3-phenylacrylate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogen; chloroacetic acid; Ru(OCOCH3)2((R)-H8-binap) In methanol at 50℃; under 22502.3 Torr; for 88h; Product distribution / selectivity; | 39.5% |
With hydrogen; Ru(OCOCH3)2((S)-dm-binap) In methanol at 50℃; under 22502.3 Torr; for 88h; Product distribution / selectivity; | 9% |
methyl 3-amino-3-phenylpropanoate
(3S)-methyl 3-amino-3-phenylpropanoate
chloro-trimethyl-silane
tert-butyl (3S,αR)-3-[N-benzyl-N-(α-methylbenzyl)amino]-3-phenylpropanoate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal 1.) AcOH; 2.) CH3OH; Yield given. Multistep reaction; |
methanol
3-Amino-3-phenylpropionic acid
A
(3S)-methyl 3-amino-3-phenylpropanoate
B
methyl (3R)-3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogenchloride for 1h; Heating; Yield given; |
methyl 3-(2-methoxyphenyl)amino-3-phenylpropionate
A
(3S)-methyl 3-amino-3-phenylpropanoate
B
methyl (3R)-3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate In tetrahydrofuran; water; acetonitrile at 60℃; for 4h; Title compound not separated from byproducts; |
methyl 3-(2,4-dimethoxyphenyl)amino-3-phenyl-propionate
A
(3S)-methyl 3-amino-3-phenylpropanoate
B
methyl (3R)-3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With ammonium cerium(IV) nitrate In water; acetonitrile at 0℃; for 0.666667h; Title compound not separated from byproducts; |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With bis-[(trifluoroacetoxy)iodo]benzene In acetonitrile at 20℃; for 1h; Hofmann rearrangement; |
(R,R)-2,6-bis(2-isopropylphenyl)-3,5-dimethylphenyl 3-(2-methoxyphenyl)amino-3-phenylpropionate
A
(3S)-methyl 3-amino-3-phenylpropanoate
B
methyl (3R)-3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: (R,R)-2,6-bis(2-isopropylphenyl)-3,5-dimethylphenyl 3-(2-methoxyphenyl)amino-3-phenylpropionate With tetra(n-butyl)ammonium hydroxide In tetrahydrofuran at 0℃; Saponification; Stage #2: (diazomethyl)-trimethylsilane In methanol at 20℃; Methylation; Stage #3: With ammonium peroxydisulfate; silver nitrate In tetrahydrofuran; water; acetonitrile at 60℃; Oxidative cleavage; Further stages. Title compound not separated from byproducts.; |
A
(3S)-methyl 3-amino-3-phenylpropanoate
B
methyl (3R)-3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Stage #1: (R,R)-2,6-bis(2-isopropylphenyl)-3,5-dimethylphenyl 3-(2,4-dimethoxyphenyl)amino-3-phenylpropionate With tetra(n-butyl)ammonium hydroxide In tetrahydrofuran at 0℃; Saponification; Stage #2: (diazomethyl)-trimethylsilane In methanol at 20℃; Methylation; Stage #3: With ammonium cerium(IV) nitrate In water; acetonitrile at 0℃; Oxidative cleavage; Further stages. Title compound not separated from byproducts.; |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol at 20℃; for 16h; |
methyl (3S)-3-[(tert-butoxycarbonyl)amino]-3-phenylpropionate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane |
(Z)-N-benzylidenebenzylamine N-oxide
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Ti-(S)-BINOL-4-tert-butylcatechol / toluene / 24 h / -78 °C 2: Zn; H2SO4 / methanol / 2 h / 60 °C 3: hydrogen / Pd/C / methanol / 16 h / 20 °C View Scheme |
(S)-(-)-methyl 3-(N-tert-butyldimethylsiloxy-N-benzylamino)-3-phenylpropanoate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Zn; H2SO4 / methanol / 2 h / 60 °C 2: hydrogen / Pd/C / methanol / 16 h / 20 °C View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2 / Pd(OH)2/C / methanol 2: TFA / CH2Cl2 View Scheme |
(E)-(4S)-4-(N-benzyl)amino-1-[(1R,2R)-2-hydroxy-1,2-dicyclohexylethyl]oxy-4-phenyl-1-butene
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: Et3N / tetrahydrofuran / 12 h / 50 °C 2.1: O3 / CH2Cl2 / -78 °C 2.2: dimethyl sulfide / CH2Cl2 / 12 h / -78 - 20 °C 3.1: NaClO2; aq. NaH2PO4 / 2-methyl-propan-2-ol; various solvent(s) / 20 °C 4.1: NaHCO3 / dimethylformamide / 12 h / 20 °C 5.1: H2 / Pd(OH)2/C / methanol 6.1: TFA / CH2Cl2 View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: NaClO2; aq. NaH2PO4 / 2-methyl-propan-2-ol; various solvent(s) / 20 °C 2: NaHCO3 / dimethylformamide / 12 h / 20 °C 3: H2 / Pd(OH)2/C / methanol 4: TFA / CH2Cl2 View Scheme |
methyl (S)-3-(N-tert-butyloxycarbonyl-N-benzyl)amino-3-phenylpropionate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2 / Pd(OH)2/C / methanol 2: TFA / CH2Cl2 View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: NaHCO3 / dimethylformamide / 12 h / 20 °C 2: H2 / Pd(OH)2/C / methanol 3: TFA / CH2Cl2 View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: O3 / CH2Cl2 / -78 °C 1.2: dimethyl sulfide / CH2Cl2 / 12 h / -78 - 20 °C 2.1: NaClO2; aq. NaH2PO4 / 2-methyl-propan-2-ol; various solvent(s) / 20 °C 3.1: NaHCO3 / dimethylformamide / 12 h / 20 °C 4.1: H2 / Pd(OH)2/C / methanol 5.1: TFA / CH2Cl2 View Scheme |
N-benzylidene-2-methoxy-aniline
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: n-BuLi / tetrahydrofuran; hexane / 0.5 h / -78 °C 1.2: Et2Zn / tetrahydrofuran; hexane / 27 h / -78 °C 2.1: 99 percent / n-Bu4NOH / tetrahydrofuran / 1.5 h / 0 °C 3.1: 99 percent / methanol / 20 °C 4.1: AgNO3; (NH4)2S2O8 / H2O; acetonitrile; tetrahydrofuran / 4 h / 60 °C View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 99 percent / methanol / 20 °C 2: AgNO3; (NH4)2S2O8 / H2O; acetonitrile; tetrahydrofuran / 4 h / 60 °C View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 99 percent / methanol / 20 °C 2: CAN / H2O; acetonitrile / 0.67 h / 0 °C View Scheme |
(3S)-methyl 3-amino-3-phenylpropanoate
p-toluenesulfonyl chloride
(S)-methyl 3-(4-methylphenylsulfonamido)-3-phenylpropanoate
Conditions | Yield |
---|---|
With potassium carbonate In dichloromethane for 0.5h; | 99% |
(3S)-methyl 3-amino-3-phenylpropanoate
(S)-(+)-β-phenyl-β-alanine hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride; sodium hydroxide for 16h; Ambient temperature; | 98% |
5-ethoxy-3,4-dihydro-2H-pyrrole
(3S)-methyl 3-amino-3-phenylpropanoate
(+)-(2S)-2,6,7,8-tetrahydro-2-phenyl-3H-pyrrolo<1,2-a>pyrimidin-4-one
Conditions | Yield |
---|---|
at 125 - 135℃; for 3h; | 93% |
(3S)-methyl 3-amino-3-phenylpropanoate
methyl 11-cyano-8-(2-naphthylmethyl)-3-phenyl-4,8-diazaundecanoate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane at -78 - 25℃; for 16h; Alkylation; | 92% |
(3S)-methyl 3-amino-3-phenylpropanoate
(S)-3-amino-3-phenylpropanol
Conditions | Yield |
---|---|
With sodium tetrahydroborate; Tetrahydro-furan; compound with trifluoroborane In tetrahydrofuran at 0 - 30℃; for 4h; | 92% |
With sodium tetrahydroborate; sulfuric acid In tetrahydrofuran; diethyl ether Reduction; | 87% |
With lithium aluminium tetrahydride In tetrahydrofuran at 0℃; Reflux; | 81% |
With sodium tetrahydroborate In tetrahydrofuran | 72% |
tert-butyl hydrogen carbonate
(3S)-methyl 3-amino-3-phenylpropanoate
methyl (3S)-3-[(tert-butoxycarbonyl)amino]-3-phenylpropionate
Conditions | Yield |
---|---|
With sodium carbonate In water; ethyl acetate at 20℃; for 24h; | 91% |
di-tert-butyl dicarbonate
(3S)-methyl 3-amino-3-phenylpropanoate
methyl (3S)-3-[(tert-butoxycarbonyl)amino]-3-phenylpropionate
Conditions | Yield |
---|---|
With sodium hydrogencarbonate | 90% |
With sodium hydroxide In tetrahydrofuran at 20℃; for 2h; | 68% |
With triethylamine at 0℃; for 1h; | 92 mg |
With sodium carbonate In tetrahydrofuran; water at 0 - 25℃; for 3h; |
(3S)-methyl 3-amino-3-phenylpropanoate
acetyl chloride
methyl (S)-3-acetylamino-3-phenylpropionate
Conditions | Yield |
---|---|
With triethylamine In chloroform at 0 - 20℃; optical yield given as %ee; | 90% |
3-acetylamino-propionic acid 2,2,2-trifluoro-ethyl ester
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With Candida antarctica lipase A preparation In diethyl ether at 23℃; for 22h; | 85% |
(R)-3-Acetylamino-2-methyl-propionic acid 2,2,2-trifluoro-ethyl ester
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With Candida antarctica lipase A preparation In diethyl ether at 23℃; for 75h; | 85% |
(S)-3-Acetylamino-2-methyl-propionic acid 2,2,2-trifluoro-ethyl ester
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With Candida antarctica lipase A preparation In diethyl ether at 23℃; for 72h; | 82% |
(3S)-methyl 3-amino-3-phenylpropanoate
4-methyl-N-{3-[(methylsulfonyl)oxy]propyl}benzenesulfonamide
methyl (-)-(S)-3-({3-[(4-methylphenylsulfonyl)amino]propyl}amino)-3-phenylpropanoate
Conditions | Yield |
---|---|
With triethylamine In acetonitrile for 4h; Heating; | 79% |
benzyl 2-carbobenzyloxyamino-2-deoxy-α-D-galactopyranosiduronic acid
(3S)-methyl 3-amino-3-phenylpropanoate
N-(benzyl 2-carbobenzyloxyamino-2-deoxy-α-D-galactopyranosiduronyl)-β-D-phenylalanine methyl ester
Conditions | Yield |
---|---|
With benzotriazol-1-ol; dicyclohexyl-carbodiimide In N,N-dimethyl-formamide at 20℃; for 18h; | 79% |
Phenyl triflate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
With C44H61NO5PPdS; caesium carbonate In 2-methyltetrahydrofuran at 50℃; for 2h; Inert atmosphere; | 78% |
2-methoxy-1-pyrroline
(3S)-methyl 3-amino-3-phenylpropanoate
(+)-(2S)-2,6,7,8-tetrahydro-2-phenyl-3H-pyrrolo<1,2-a>pyrimidin-4-one
Conditions | Yield |
---|---|
at 130℃; for 7h; | 76% |
(3S)-methyl 3-amino-3-phenylpropanoate
tert-butyl chloroformate
methyl (3S)-3-[(tert-butoxycarbonyl)amino]-3-phenylpropionate
Conditions | Yield |
---|---|
With sodium carbonate In dichloromethane; water at 20℃; for 3h; | 76% |
With sodium carbonate In dichloromethane; water at 20℃; | 21.2 g |
(3S)-methyl 3-amino-3-phenylpropanoate
3,4-dihydro-4-hydroxy-1-oxo-4-(2-oxoethyl)isoquinoline-2(1H)-propanenitrile
methyl (βS)-β-{{2-[-(2-cyanoethyl)-1,2,3,4-tetrahydro-4-hydroxy-1-oxoisoquinolin-4-yl]ethyl}amino}benzenepropanoate
Conditions | Yield |
---|---|
With hydrogenchloride; sodium cyanoborohydride In methanol at 20℃; for 12h; | 75% |
(3S)-methyl 3-amino-3-phenylpropanoate
chloroformic acid ethyl ester
(S)-methyl 3-(ethoxycarbonylamino)-3-phenylpropanoate
Conditions | Yield |
---|---|
With sodium carbonate In dichloromethane; water at 20℃; for 3h; | 72% |
With sodium carbonate In dichloromethane; water at 20℃; | 18 g |
(3S)-methyl 3-amino-3-phenylpropanoate
(S)-4-phenyl-2-azetidinone
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 4h; | 50% |
Stage #1: (3S)-methyl 3-amino-3-phenylpropanoate With dmap; chloro-trimethyl-silane; triethylamine In diethyl ether at 0 - 20℃; for 15h; Stage #2: With tert-butylmagnesium chloride In diethyl ether at -5 - 20℃; for 12.5h; | 31% |
Multi-step reaction with 3 steps 1: 98 percent / 1) 40percent aq. NaOH, 2) conc HCl / 16 h / Ambient temperature 2: 99 percent / Et3N / 4 h / 80 °C 3: 1) EtMgBr 2) NH4Cl, 2N HCl / 1) ether, r. t. 3 h, 2) -10 deg C, pH 3 View Scheme | |
Multi-step reaction with 3 steps 1: 40percent NaOH 2: Et3N 3: EtMgBr View Scheme |
benzyl (1S)-2-hydrazino-1-(hydroxymethyl)-2-oxoethylcarbamate
(3S)-methyl 3-amino-3-phenylpropanoate
Conditions | Yield |
---|---|
(i) NaNO2, aq. HCl, AcOH, (ii) /BRN= 5257426/, Et3N, AcOEt, CHCl3; Multistep reaction; |
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