As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis
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Cas:344-25-2
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inquiryItems Standard Result Assay (Ursolic acid) 98%min 98.22% ----------------------------------------------------------------
Cas:344-25-2
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inquiryD-Proline CAS 344-25-2 Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in distributing the
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inquiryThe 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
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Cas:344-25-2
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inquiryCangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap
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Cas:344-25-2
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inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:344-25-2
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
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Cas:344-25-2
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inquiryName Proline Synonyms D-(+)-Proline; D-Pyrrolidine-2-carboxylic acid Molecular Structure Molecular Formula
Cas:344-25-2
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Cas:344-25-2
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inquiryWe can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need CMO
Cas:344-25-2
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inquiry1,In No Less five years exporting experience. 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Onchem specialized in APIs, chemical intermediate
Cas:344-25-2
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Cas:344-25-2
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inquiryD-Proline CAS: 344-25-2 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 quality organic intermediates, s
Cas:344-25-2
Min.Order:1 Gram
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Type:Lab/Research institutions
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
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
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Cas:344-25-2
Min.Order:500 Kilogram
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Type:Lab/Research institutions
inquiryTrade Assurance Get full protection for your orders 100% Product quality protection 100% On-time shipment protection 100% Payment protection Appearance:white slight crystal powder Storage:Store at room(18~25℃) temperature. Protect from moisture Pa
Cas:344-25-2
Min.Order:25 Kilogram
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Type:Lab/Research institutions
inquiryBest 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
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
Sichuan Tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in China, we guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:2008, production and quality managemen
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Cas:344-25-2
Min.Order:10 Kilogram
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Type:Trading Company
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Company 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
Cas:344-25-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
Cas:344-25-2
Min.Order:1 Gram
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inquiryConditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol under 760 Torr; for 5h; | 96% |
(S)-1-Pyrrolidin-2-yl-methanol
D-Prolin
Conditions | Yield |
---|---|
With potassium permanganate In water at 15 - 20℃; Concentration; | 95.65% |
D-Prolin
Conditions | Yield |
---|---|
With hydrogen; palladium(II) hydroxide In tetrahydrofuran; methanol at 20℃; for 3h; | 83% |
With hydrogen; palladium(II) hydroxide In tetrahydrofuran; methanol at 20℃; for 3h; | 83% |
D-Prolin
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol | 77% |
(R)-N-(3,5-dinitrobenzoyl)proline
D-Prolin
Conditions | Yield |
---|---|
With hydrogenchloride | |
With hydrogenchloride |
(2R,5R)-2-t-butyl-1-t-butyloxycarbonyl-5-(3-chloropropyl)-3-methyl-4-imidazolidinone
D-Prolin
Conditions | Yield |
---|---|
Yield given. Multistep reaction; |
(2S,3S)-2,3-Dihydroxy-succinic acid; compound with (R)-pyrrolidine-2-carboxylic acid
D-Prolin
Conditions | Yield |
---|---|
With ammonium hydroxide 1.) methanol, 0.5 h; Yield given. Multistep reaction; |
(S)-N-(2-benzoylphenyl)-1-benzylpyrrolidine-2-carboxamide
acrolein
A
L-proline
B
D-Prolin
Conditions | Yield |
---|---|
With sodium tetrahydroborate; triethylamine; nickel(II) nitrate Yield given. Multistep reaction. Yields of byproduct given; |
D-Prolin
Conditions | Yield |
---|---|
With hydrogenchloride; nitrosylchloride Erhitzen des Reaktionsprodukts mit wss. Ba(OH)2; |
D-Prolin
Conditions | Yield |
---|---|
With Cinchonin |
Conditions | Yield |
---|---|
With hydrogenchloride; sodium cyanoborohydride; triethylamine 1.) MeOH, 60 deg C; 2.) EtOH, 80 deg C; 3.) MeOH, r.t., 24 h; Yield given. Multistep reaction; |
acrolein
A
(S)-N-(2-benzoylphenyl)-1-benzylpyrrolidine-2-carboxamide
B
L-proline
C
D-Prolin
Conditions | Yield |
---|---|
With sodium tetrahydroborate; triethylamine 1.) MeOH, -10 deg C, 2.) water, 25 deg C; Yield given. Multistep reaction. Yields of byproduct given; |
N-benzyloxycarbonyl-L-phenylalanyl-D-proline
A
N-Cbz-L-Phe
B
D-Prolin
Conditions | Yield |
---|---|
With hydrogenchloride; carboxypeptisae-A In water at 37℃; pH=6.5; Enzyme kinetics; Kinetics; Further Variations:; Reagents; |
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aq. HCl / Heating 2: 77 percent / H2 / Pd/C / methanol View Scheme |
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: aq. HCl / Heating 2: aq. HCl / Heating 3: 77 percent / H2 / Pd/C / methanol View Scheme |
methyl 2,3-dideoxy-5,6-O-isopropylidene-4-O-p-tolylsulfonyl-D-erythro-hexonate
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 91 percent / NaN3 / dimethylformamide / 12 h / 100 °C 2: 82 percent / DIBAL / light petroleum; toluene; hexane / 1 h / -78 °C 3: 76 percent / H2 / 10percent Pd/C / methanol / 7 h / 760 Torr / Ambient temperature 4: 82 percent / NaHCO3 / aq. ethanol 5: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 6: 79 percent / aq. NaIO4 / methanol / 2 h 7: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 8: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
(2R)-(+)-phenylmethyl 2-formylpyrrolidine-1-carboxylate
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 2: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
(R)-2-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]pyrrolidine
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 82 percent / NaHCO3 / aq. ethanol 2: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 3: 79 percent / aq. NaIO4 / methanol / 2 h 4: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 5: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
(R)-4-Azido-4-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-butyraldehyde
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 76 percent / H2 / 10percent Pd/C / methanol / 7 h / 760 Torr / Ambient temperature 2: 82 percent / NaHCO3 / aq. ethanol 3: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 4: 79 percent / aq. NaIO4 / methanol / 2 h 5: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 6: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
(R)-1-benzyloxycarbonyl-2-[(S)-1,2-dihydroxyethyl]pyrrolidine
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 79 percent / aq. NaIO4 / methanol / 2 h 2: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 3: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
(R)-4-Azido-4-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-butyric acid methyl ester
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 82 percent / DIBAL / light petroleum; toluene; hexane / 1 h / -78 °C 2: 76 percent / H2 / 10percent Pd/C / methanol / 7 h / 760 Torr / Ambient temperature 3: 82 percent / NaHCO3 / aq. ethanol 4: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 5: 79 percent / aq. NaIO4 / methanol / 2 h 6: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 7: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
(2R,4'S)-N-Benzyloxycarbonyl-2-(2',2'-dimethyl-1',3'-dioxolan-4'-yl)pyrrolidine
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 2: 79 percent / aq. NaIO4 / methanol / 2 h 3: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 4: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme |
1-(3,5-dinitro-benzoyl)-DL-proline
D-Prolin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: brucine; acetone 2: aqueous HCl View Scheme |
Conditions | Yield |
---|---|
With pyridine; H2; CO In tetrahydrofuran; hydrogenchloride |
Conditions | Yield |
---|---|
With pyridine; H2; CO; Co2(CO)8 In tetrahydrofuran; hydrogenchloride |
Conditions | Yield |
---|---|
With C24H29CoN2O4 In dichloromethane; water at 10℃; for 24h; Resolution of racemate; optical yield given as %ee; | |
Stage #1: rac-Pro-OH With C24H29CoN2O4 In dichloromethane; water at 10℃; for 24h; Resolution of racemate; Stage #2: With sodium dithionite In dichloromethane; water for 5h; Resolution of racemate; optical yield given as %ee; | |
With shaking calcined L-Pro chiral ordered mesoporous silica Resolution of racemate; |
Conditions | Yield |
---|---|
With potassium permanganate; sulfuric acid In water at 0 - 20℃; optical yield given as %ee; |
Conditions | Yield |
---|---|
With hydrogenchloride; water at 150℃; for 12h; |
apratoxin S5
A
N-methylalanine
B
N-methyl-L-isoleucine
C
O-Methyltyrosine
D
D-Prolin
Conditions | Yield |
---|---|
With hydrogenchloride; water at 110℃; for 24h; |
Conditions | Yield |
---|---|
With thionyl chloride at 0℃; for 2h; | 100% |
With thionyl chloride Reflux; | 97% |
In dimethyl sulfoxide at 10 - 80℃; for 2h; | 88% |
Conditions | Yield |
---|---|
With sodium hydroxide | 100% |
Conditions | Yield |
---|---|
With sodium hydroxide In water; toluene at 20℃; for 1h; Inert atmosphere; | 100% |
With sodium hydroxide In water at 0 - 20℃; | 93% |
With sodium hydroxide In water Ambient temperature; |
Conditions | Yield |
---|---|
With thionyl chloride at 20℃; for 16.5h; | 100% |
Conditions | Yield |
---|---|
With thionyl chloride In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; for 1h; | 100% |
D-Prolin
Methacryloyl chloride
(2R)-1-methacryloylpyrrolidin-2-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydroxide In acetone at 0℃; for 0.5h; | 99% |
With sodium hydroxide In tetrahydrofuran; acetone at 5 - 20℃; for 3h; pH=11 - 12; Cooling with ice; | 83.8% |
With sodium hydroxide In acetone at 20℃; for 4h; pH=10.3; | 81% |
Conditions | Yield |
---|---|
With porcine kidney D-amino acid oxidase (EC 1.4.3.3.); sodium cyanoborohydride; flavin adenine dinucleotide In phosphate buffer at 37℃; | 99% |
4-Fluoro-2-hydroxyacetophenone
D-Prolin
(R)-1-(4-acetyl-3-hydroxyphenyl)pyrrolidine-2-carboxylic acid
Conditions | Yield |
---|---|
With potassium carbonate In dimethyl sulfoxide at 95℃; for 2.5h; | 99% |
Conditions | Yield |
---|---|
Stage #1: D-Prolin With pyridine; chloro-trimethyl-silane In dichloromethane for 1.16667h; Stage #2: n-dodecanoyl chloride In dichloromethane at 0 - 20℃; for 1.83333h; | 99% |
Conditions | Yield |
---|---|
With triethylamine | 98% |
With triethylamine In dichloromethane at 25 - 30℃; | 97% |
Stage #1: D-Prolin With sodium hydrogencarbonate In 1,4-dioxane; water at 20℃; for 0.5h; Stage #2: di-tert-butyl dicarbonate In 1,4-dioxane; water at 0 - 20℃; | 95% |
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen In ethanol at 20℃; under 3750.38 Torr; for 5h; Inert atmosphere; | 98% |
D-Prolin
N-nitroso-D-proline
Conditions | Yield |
---|---|
With 3,3-dimethyl-2-nitroso-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide In dichloromethane at 20℃; Sealed tube; | 98% |
tetra-n-butylphosphonium hydroxide
D-Prolin
Conditions | Yield |
---|---|
In water at 20℃; for 2h; | 97% |
Conditions | Yield |
---|---|
With sodium methylate In methanol at 20℃; for 12h; Darkness; | 97% |
With sodium methylate In methanol at 50℃; for 24h; Inert atmosphere; diastereoselective reaction; |
1-Naphthalenesulfonyl chloride
D-Prolin
(R)-1-(naphthalen-1-ylsulfonyl)pyrrolidine-2-carboxylic acid
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran at 50℃; for 5h; | 96.2% |
Conditions | Yield |
---|---|
With sodium carbonate In tetrahydrofuran; water at 0 - 20℃; for 3.75h; | 96% |
With potassium carbonate In water 1) 0 deg C, 1 h, 2) r.t., 2 h; Yield given; | |
Stage #1: chloroformic acid ethyl ester; D-Prolin With sodium hydroxide; water at 0 - 20℃; pH=9 - 10; Stage #2: With hydrogenchloride; water at 0℃; pH=1; |
isatoic anhydride
D-Prolin
(11aS)-2,3,5,10,11,11a-hexahydro-1H-pyrrolo<2,1-c><1,4>benzodiazepin-5,11-dione
Conditions | Yield |
---|---|
In dimethyl sulfoxide at 180℃; Condensation; | 96% |
In dimethyl sulfoxide at 150℃; for 2h; Inert atmosphere; | 82% |
In dimethyl sulfoxide at 100℃; for 5h; | 81% |
Conditions | Yield |
---|---|
Stage #1: formaldehyd; D-Prolin Stage #2: With hydrogen | 96% |
With hydrogen; palladium 10% on activated carbon In methanol under 775.743 Torr; for 18h; | 96% |
With hydrogen; palladium 10% on activated carbon In methanol under 775.743 Torr; for 18h; | 96% |
Conditions | Yield |
---|---|
In n-heptane at 20℃; for 48h; Inert atmosphere; | 96% |
dimethylsulfite
toluene-4-sulfonic acid
D-Prolin
(D)-proline, methyl ester, tosylate salt
Conditions | Yield |
---|---|
In diethyl ether at 90℃; for 7h; | 95% |
Conditions | Yield |
---|---|
With hydrogenchloride; sodium hydroxide In water; acetone | 95% |
2-(3-fluoro-6-nitrophenyl)benzothiazole
D-Prolin
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In tetrahydrofuran; water for 16h; Reflux; | 95% |
Conditions | Yield |
---|---|
With dmap at 20℃; for 5.16667h; Reagent/catalyst; | 94.8% |
D-Prolin
tetrabutylammonium (R)-prolinate
Conditions | Yield |
---|---|
In water at 100℃; for 65h; | 94% |
tetra-n-butylphosphonium hydroxide
D-Prolin
Conditions | Yield |
---|---|
In water at 100℃; for 24h; | 94% |
Conditions | Yield |
---|---|
Stage #1: Cbz-Gly-ONSuc; D-Prolin With N-ethyl-N,N-diisopropylamine In ethyl acetate for 12h; Inert atmosphere; Green chemistry; Stage #2: With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate In ethyl acetate for 0.5h; Inert atmosphere; Green chemistry; Stage #3: L-glutamic dimethyl ester hydrochloride In ethyl acetate for 1h; Inert atmosphere; Green chemistry; chemoselective reaction; | 94% |
perfluoro-1-butanesulfonyl fluoride
D-Prolin
(R)-1-(butylsulfonyl)pyrrolidine-2-carboxylic acid
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran at 50℃; for 5h; | 93.1% |
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