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 ch
Cas:5625-67-2
Min.Order:1 Kilogram
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inquiry1. high purity 2. able to provide COA/HNMR/HPLC 3. High quality 4. low price 5. Best service Appearance:white powder Storage:rm Package:bag/bottle/drum Application:pharmaceutical intermediate Transportation:common transportation Port:Shanghai
Product Name: Piperazin-2-one; 2-Oxopiperazine; 2-piperazone CAS No.: 5625-67-2 Molecular Formula: C4H8N2O Molecular Weight: 100.12 Purity: 98.0% Min. Appearance: White or off-white crystalline powder We are a professional chemi
Cas:5625-67-2
Min.Order:1 Gram
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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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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
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inquiryOur advantage:Our 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 Scient
Cas:5625-67-2
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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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inquiryWITH 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
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inquiry1.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
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Min.Order:1 Kilogram
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Cas:5625-67-2
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Type:Trading Company
inquiry2-Piperazinone CAS:5625-67-2 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 intermediat
Cas:5625-67-2
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
Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
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inquiryA 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
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Min.Order:4 Kilogram
Negotiable
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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
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
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Min.Order:10 Gram
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inquiryEstablished in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site
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Min.Order:1 Kilogram
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2-Piperazinone Chemical Properties Melting point 136-140 °C (lit.) Boiling point 164°C/5mmHg(lit.) density 1.053±0.06 g/cm3(Predicted) form Crystalline Powder pka 15.47±0.20(Predicted) color White to tan S
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Min.Order:1 Gram
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Type:Lab/Research institutions
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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
1.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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Min.Order:1 Metric Ton
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Type:Trading Company
inquiryLocated in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h
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Conditions | Yield |
---|---|
With meso-tetraphenylporphyrin iron(III) chloride In dichloromethane at 22℃; for 0.166667h; Inert atmosphere; | 86% |
With [2-(4-hydroxymethyl)phenyl-4,4-(dimethyloxazole)Ru(CH3CN)4]PF6 In diethyl ether; water at 20℃; | 80% |
Conditions | Yield |
---|---|
Stage #1: chloroacetic acid ethyl ester; ethylenediamine In methanol at 0 - 5℃; for 4h; Stage #2: With sodium methylate In methanol at 20 - 25℃; Solvent; Reagent/catalyst; | 85.4% |
Stage #1: chloroacetic acid ethyl ester; ethylenediamine In ethanol at 20℃; for 5.5h; Stage #2: With sodium ethanolate In ethanol Stage #3: With N,N-dimethyl-formamide In ethanol at 20 - 70℃; for 24h; | 82% |
With potassium hydroxide In ethanol Heating; | 50% |
Stage #1: chloroacetic acid ethyl ester; ethylenediamine In ethanol at 20℃; for 2h; Stage #2: With sodium ethanolate In ethanol at 20℃; for 14h; Stage #3: at 200℃; for 0.0833333h; | 34.5% |
With ethanol |
Conditions | Yield |
---|---|
Stage #1: chloroacetic acid ethyl ester; diethylamine With sodium ethanolate In ethanol at 20℃; for 5.5h; Stage #2: In DMF (N,N-dimethyl-formamide) at 20 - 70℃; for 24h; | 82% |
Conditions | Yield |
---|---|
Stage #1: ethyl bromoacetate; ethylenediamine In ethanol at 20℃; for 2h; Stage #2: With sodium ethanolate at 20℃; | 79.84% |
Stage #1: ethyl bromoacetate; ethylenediamine In ethanol at 0 - 23℃; Stage #2: With sodium ethanolate In ethanol at 80℃; for 16h; Inert atmosphere; | 64% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In ethanol | A n/a B 75% |
Conditions | Yield |
---|---|
With ammonium hydroxide; sodium ethanolate; ethylenediamine In methanol; ethanol; dichloromethane; N,N-dimethyl-formamide | 45% |
With ammonium hydroxide; sodium ethanolate; ethylenediamine In methanol; ethanol; dichloromethane; N,N-dimethyl-formamide | 45% |
With ammonium hydroxide; sodium ethanolate; ethylenediamine In methanol; ethanol; dichloromethane; N,N-dimethyl-formamide | 45% |
Conditions | Yield |
---|---|
With ammonium hydroxide; sodium ethanolate; ethylenediamine In ethanol; N,N-dimethyl-formamide | 45% |
With ammonium hydroxide; sodium ethanolate; ethylenediamine In ethanol; N,N-dimethyl-formamide | 45% |
With ammonium hydroxide; sodium ethanolate; ethylenediamine In ethanol; N,N-dimethyl-formamide | 45% |
Conditions | Yield |
---|---|
With sodium ethanolate; ethylenediamine In ethanol | A 34.5% B n/a |
Conditions | Yield |
---|---|
With potassium carbonate at 125℃; | 30% |
ethanol
chloroacetic acid ethyl ester
ethylenediamine
2-Ketopiperazine
Conditions | Yield |
---|---|
at 25℃; |
Conditions | Yield |
---|---|
With piperidine; hydrogen cyanide |
Conditions | Yield |
---|---|
With water |
N-(2-Aminoethyl)glycinethylester
2-Ketopiperazine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 60 - 70℃; Cyclization; | |
With sodium ethanolate In ethanol; toluene at 20℃; for 5h; Heating / reflux; |
Conditions | Yield |
---|---|
With sodium ethanolate; ethylenediamine In ethanol; N,N-dimethyl-formamide | |
With NaOEt In ethanol; ethylenediamine; toluene | |
With sodium methylate In methanol; ethanol; chloroform; ethylenediamine |
Conditions | Yield |
---|---|
With acetyl chloride In methanol; 1,1-dichloroethane |
4-(t-butyloxycarbonyl)piperazin-2-one
A
2-Ketopiperazine
B
1-tert-butoxycarbonyl-4-(2-fluoroethyl)-3-oxopiperazine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide; isopropyl alcohol |
C4H9ClN2O
2-Ketopiperazine
Conditions | Yield |
---|---|
With sodium methylate In methanol at 25 - 30℃; for 0.0833333h; |
2-Ketopiperazine
di-tert-butyl dicarbonate
4-(t-butyloxycarbonyl)piperazin-2-one
Conditions | Yield |
---|---|
In dichloromethane for 3h; | 100% |
In dichloromethane at 20℃; for 5h; | 100% |
In dichloromethane at 20℃; Cooling with ice; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at -10 - 20℃; | 100% |
2-Ketopiperazine
4-nitrobenzyl chloroformate
4-p-nitrobenzyloxycarbonyl-2-ketopiperazine
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In 1,4-dioxane; dichloromethane at 0℃; for 0.5h; | 100% |
With N-ethyl-N,N-diisopropylamine In 1,4-dioxane; dichloromethane at 0℃; for 0.5h; | 100% |
With N-ethyl-N,N-diisopropylamine In 1,4-dioxane; dichloromethane at 0℃; for 0.5h; | 100% |
With N-ethyl-N,N-diisopropylamine In 1,4-dioxane; dichloromethane; water |
2-Ketopiperazine
tert-butyl 4-{[4-amino-6-formyl-5-(7-methoxy-5-methyl-1-benzothiophen-2-yl)pyrrolo[2,1-f]-[1,2,4]triazin-7-yl]methyl}piperazine-1-carboxylate
tert-butyl 4-( {4-amino-5-(7-methoxy-5-methyl-1-benzothiophen-2-yl)-6-[(3-oxopiperazin-1-yl)methyl]pyrrolo[2,1-f][1,2,4]triazin-7-yl}methyl)piperazine-1-carboxylate
Conditions | Yield |
---|---|
With sodium tris(acetoxy)borohydride; acetic acid In tetrahydrofuran at 20℃; for 2h; | 100% |
With sodium tris(acetoxy)borohydride; acetic acid In tetrahydrofuran at 20℃; for 2h; Enzymatic reaction; | 100% |
2-Ketopiperazine
N-((1S,2R)-2-amino-1,2-bis(4-chlorophenyl)ethyl)-2-isopropoxy-4-methoxybenzamide
1,1'-carbonyldiimidazole
N-((1R,2S)-1,2-bis(4-chlorophenyl)-2-(2-isopropoxy-4-methoxybenzamido)ethyl)-3-oxopiperazine-1-carboxamide
Conditions | Yield |
---|---|
Stage #1: N-((1S,2R)-2-amino-1,2-bis(4-chlorophenyl)ethyl)-2-isopropoxy-4-methoxybenzamide; 1,1'-carbonyldiimidazole In dichloromethane at 20℃; for 1.5h; Stage #2: 2-Ketopiperazine In dichloromethane at 20℃; for 18h; | 99% |
In dichloromethane at 20℃; for 2h; | 66% |
In dichloromethane at 20℃; |
2-Ketopiperazine
Conditions | Yield |
---|---|
With methanesulfonic acid; ruthenium(1,1,1-tris(di(3,5-dimethylphenyl)phosphinomethyl)ethane)(η4-trimethylenemethane); hydrogen In tetrahydrofuran at 160℃; under 75007.5 Torr; for 16h; Autoclave; Schlenk technique; | 99% |
2-Ketopiperazine
benzyl chloroformate
4-benzyloxycarbonylpiperazin-2-one
Conditions | Yield |
---|---|
With sodium carbonate In water; ethyl acetate for 16h; Ambient temperature; | 98% |
With potassium carbonate In water; ethyl acetate at 20℃; for 16h; | 93% |
With sodium carbonate In water; ethyl acetate at 0 - 30℃; for 16h; | 84.93% |
piperidine
2-Ketopiperazine
9-fluorenylmethoxycarbonyl isothiocyanate
3-oxopiperazine-1-carbothionic acid amide
Conditions | Yield |
---|---|
Stage #1: piperidine; 2-Ketopiperazine; 9-fluorenylmethoxycarbonyl isothiocyanate In chloroform at 20℃; for 2h; Stage #2: With piperidine In N,N-dimethyl-formamide at 20℃; for 6h; | 98% |
Conditions | Yield |
---|---|
Stage #1: N-((1S,2R)-2-amino-2-(4-chlorophenyl)-1-(3-methoxyphenyl)ethyl)-2-isopropoxy-4-methoxybenzamide; 1,1'-carbonyldiimidazole In dichloromethane at 20℃; for 1h; Inert atmosphere; Stage #2: 2-Ketopiperazine In dichloromethane at 20℃; for 15h; Inert atmosphere; | 98% |
2-Ketopiperazine
2-chloropyridine-5-sulfonyl chloride
4-((6-chloro-3-pyridinyl)sulfonyl)-2-piperazinone
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0℃; for 0.5h; Inert atmosphere; | 97% |
With triethylamine In dichloromethane at 0 - 20℃; for 0.5h; | |
Stage #1: 2-Ketopiperazine; 2-chloropyridine-5-sulfonyl chloride With triethylamine In dichloromethane at 20℃; for 0.5h; Stage #2: With sodium hydrogencarbonate In water at 20℃; for 24h; | 1.12 g |
2-Ketopiperazine
methyl 2-chlorosulfonyl-6-nitrobenzoate
Conditions | Yield |
---|---|
With triethylamine In chloroform | 96.8% |
With triethylamine In chloroform | 96.8% |
2-Ketopiperazine
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; for 0.0833333h; | 96% |
2-Ketopiperazine
Conditions | Yield |
---|---|
With hydrazine hydrate In propan-1-ol Solvent; Reflux; | 95.9% |
Triallylborane
2-Ketopiperazine
2,2-diallylpiperazine
Conditions | Yield |
---|---|
In tetrahydrofuran for 2h; reductive diallylation; Heating; | 95% |
Conditions | Yield |
---|---|
Stage #1: allyl bromide With samarium In tetrahydrofuran at 20℃; for 1h; Stage #2: 2-Ketopiperazine In tetrahydrofuran at 20℃; for 0.0666667h; | 95% |
2-Ketopiperazine
C17H13ClF2N2O2
methyl 1-(4-fluorobenzyl)-3-((3-oxopiperazin-1-yl)methyl)-1H-pyrrolo[2,3-c]pyridine-5-carboxylate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In DMF (N,N-dimethyl-formamide) at 50℃; for 4h; | 95% |
Conditions | Yield |
---|---|
In 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran; ethyl acetate | 95% |
2-Ketopiperazine
methyl 3-[(dimethylamino)methyl]-1-(4-fluorobenzyl)-1H-pyrrolo[2,3-c]pyridine-5-carboxylate
methyl 1-(4-fluorobenzyl)-3-((3-oxopiperazin-1-yl)methyl)-1H-pyrrolo[2,3-c]pyridine-5-carboxylate
Conditions | Yield |
---|---|
Stage #1: methyl 3-[(dimethylamino)methyl]-1-(4-fluorobenzyl)-1H-pyrrolo[2,3-c]pyridine-5-carboxylate With chloroformic acid ethyl ester In dichloromethane at 20℃; Inert atmosphere; Stage #2: 2-Ketopiperazine With N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 95% |
2-Ketopiperazine
N-((1S,2R)-2-amino-1,2-bis(4-chlorophenyl)ethyl)-2-isopropoxy-4-methoxybenzamide
N-((1R,2S)-1,2-bis(4-chlorophenyl)-2-(2-isopropoxy-4-methoxybenzamido)ethyl)-3-oxopiperazine-1-carboxamide
Conditions | Yield |
---|---|
Stage #1: N-((1S,2R)-2-amino-1,2-bis(4-chlorophenyl)ethyl)-2-isopropoxy-4-methoxybenzamide With 1,1'-carbonyldiimidazole In dichloromethane at 20℃; for 1.5h; Stage #2: 2-Ketopiperazine In dichloromethane for 15h; Product distribution / selectivity; | 95% |
2-Ketopiperazine
5-(5-Chlorosulphonyl-2-ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Conditions | Yield |
---|---|
Stage #1: 2-Ketopiperazine With triethylamine In chloroform at 10℃; for 0.166667h; Stage #2: 5-(5-Chlorosulphonyl-2-ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one In chloroform at 25℃; for 6h; | 95% |
With N-ethyl-N,N-diisopropylamine In dichloromethane at 15 - 25℃; | 70% |
2-Ketopiperazine
N-(9H-fluoren-2-ylmethoxycarbonyloxy)succinimide
(9H-fluoren-9-yl)methyl 3-oxopiperazine-1-carboxylate
Conditions | Yield |
---|---|
With potassium carbonate In water; ethyl acetate at 20℃; | 94% |
2-Ketopiperazine
7-(2-Chloro-6-propyl-thieno[2,3-d]pyrimidin-4-yl)-3-trifluoromethyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine
4-[6-propyl-4-(3-trifluoromethyl-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl)-thieno[2,3-d]pyrimidin-2-yl]-piperazin-2-one
Conditions | Yield |
---|---|
In butan-1-ol at 150℃; for 2h; Microwave irradiation; | 94% |
2-Ketopiperazine
2-chloro-4-fluorobenzonitrile
2-chloro-4-(3-oxopiperazin-1-yl)benzonitrile
Conditions | Yield |
---|---|
With triethylamine In water; N,N-dimethyl-formamide at 80℃; for 24h; | 94% |
Conditions | Yield |
---|---|
With sodium t-butanolate In tetrahydrofuran at 80℃; for 24h; | 94% |
2-Ketopiperazine
1-bromomethyl-4-bromobenzene
4-(4-bromobenzyl)piperazin-2-on
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 20℃; for 16h; | 93% |
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 20℃; for 16h; | 93% |
2-Ketopiperazine
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; tetra-(n-butyl)ammonium iodide; acetic acid In acetonitrile at 80℃; for 16h; Inert atmosphere; Microwave irradiation; | 93% |
2-Ketopiperazine
N-tert-butyloxycarbonyl-S-trityl-L-cysteine
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-S-trityl-L-cysteine With dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 0.5h; Inert atmosphere; Stage #2: 2-Ketopiperazine With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 48h; Inert atmosphere; | 93% |
2-Ketopiperazine
2-Naphthalenesulfonyl chloride
4-(naphthalene-2-sulfonyl)-piperazin-2-one
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane for 0.5h; | 92.5% |
With triethylamine In tetrahydrofuran; N,N-dimethyl-formamide |
2-Ketopiperazine
4-(3-(4-cyanophenyl)imidazo[1,2-a]pyridin-6-yl)benzoic acid
4-(6-(4-(3-oxopiperazine-1-carbonyl)phenyl)imidazo[1,2-a]pyridin-3-yl)benzonitrile
Conditions | Yield |
---|---|
With 4-methyl-morpholine; HATU In N,N-dimethyl-formamide at 20℃; for 18h; Inert atmosphere; | 92% |
With 4-methyl-morpholine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; for 18h; Inert atmosphere; | 92% |
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