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Cas:3008-40-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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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
Cas:3008-40-0
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
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Cas:3008-40-0
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryShandong 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
Cas:3008-40-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:3008-40-0
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryWe promise quality; We deliver goods timely; We test product purity before delivery;We quote price reasonabl;We guarantee after sale service.Appearance:White or off-white crystalline powder Storage:cool and dry area,avoiding light Package:1g/5g/10g/2
Conditions | Yield |
---|---|
With aluminum (III) chloride; Oxone In water at 20℃; for 1.5h; | 97% |
2-chlorocyclopentane-1-ol
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In water at 100℃; for 0.166667h; | 80% |
2-keto cyclopentanone acetal
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With sulfuric acid; silica gel In dichloromethane for 24h; Ambient temperature; | 73% |
With sulfuric acid; silica gel In dichloromethane | 60% |
1-nitrocyclopentene oxide
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; triethylamine Mechanism; 1.) DMSO, dichloromethane, 0 deg C, 5 h; 2.) dichloromethane, 0 -> 30 deg C, 1 h; further α-nitroepoxides; | 72% |
With triethylamine; tetrakis(triphenylphosphine) palladium(0) In benzene for 7h; Heating; | 50% |
With chloro-trimethyl-silane; triethylamine 1.) DMSO, dichloromethane, 0 deg C, 5 h; 2.) dichloromethane, 0 -> 30 deg C, 1 h; Yield given. Multistep reaction; | |
With chloro-trimethyl-silane; triethylamine 1.) CH2Cl2, 0 deg C, 5 h, 2.) CH2Cl2, 0 deg C to r.t., 1 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With iron(III) chloride In water at 100℃; for 0.333333h; | 66.47% |
4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With hydrogenchloride Heating; | 61.7% |
With sulfuric acid man giesst auf Eis; | |
With sulfuric acid | |
With sulfuric acid |
2-(methylthio)cyclopentanone
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With CuCl2-CuO In water; acetone at 35℃; for 0.5h; | 60% |
With copper(II) oxide; copper dichloride In water; acetone at 35℃; for 0.5h; | 60% |
Conditions | Yield |
---|---|
With oxygen; copper(II) bis(trifluoromethanesulfonate); dimethyl sulfoxide; bismuth at 100℃; for 2h; | 52% |
1,2-bis((trimethylsilyl)oxy)cyclopent-1-ene
A
cyclopentane-1,2-dione
B
3-bromo-2-hydroxycyclopent-2-en-1-one
Conditions | Yield |
---|---|
With bromine In tetrachloromethane | A 15% B 40% |
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With hydrogenchloride |
2,3-dioxo-cyclopentanecarboxylic acid ethyl ester
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With sulfuric acid |
Conditions | Yield |
---|---|
With perchloric acid; bromamine T In water Thermodynamic data; Kinetics; Mechanism; effect of ionic strengths (with p-toluenesulphonamide), solvent isotope ratio (H2O-D2O) and solvent composition (H2O-CH3OH) on reaction rate was measured in the temp.range of 30-45 degC. Energy of activation: 18.26 Kcal/mol; enthropy -15.63 e.u.; | |
With perchloric acid; tripropylammonium fluorochromate (VI) In water; acetic acid at 24.9℃; Rate constant; Thermodynamic data; ΔH(activ.), ΔS(activ.), ΔG(activ.); further temperatures (308-328 K); | |
With selenium(IV) oxide; ethanol |
chloramine-B
cyclopentanone
A
cyclopentane-1,2-dione
B
benzenesulfonamide
Conditions | Yield |
---|---|
With hydrogenchloride; perchloric acid; sodium perchlorate In ethanol at 30℃; Kinetics; Mechanism; Thermodynamic data; ΔH(excit.), ΔG(excit.), ΔS(excit.), effect of concentration of reactants; |
Conditions | Yield |
---|---|
With dimethylsulfide In methanol dry ice-acetone to room temperature; Yields of byproduct given; | |
With dimethylsulfide In methanol dry ice-acetone to room temperature; Yield given; |
selenium(IV) oxide
ethanol
cyclopentanone
cyclopentane-1,2-dione
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With water; iron(III) chloride |
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With carbon dioxide; sulfuric acid |
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With water; silver(l) oxide |
sulfuric acid
4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester
cyclopentane-1,2-dione
sulfuric acid
4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester
A
cyclopentane-1,2-dione
B
2,3-dioxo-cyclopentanecarboxylic acid ethyl ester
Conditions | Yield |
---|---|
at 100℃; Product distribution; |
sulfuric acid
2,3-dioxo-cyclopentanecarboxylic acid ethyl ester
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With sulfuric acid at 100℃; |
2-hydroxy cyclopentanone acetal
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 38 percent / CrO3, pyridine / CH2Cl2 / 0.33 h / Ambient temperature 2: 60 percent / H2SO4, silica / CH2Cl2 View Scheme | |
Multi-step reaction with 2 steps 1: 75 percent / pyridine, Cr2O3, kieselguhr / CH2Cl2 / 0.33 h / Ambient temperature 2: 73 percent / silica gel, 15percent H2SO4 / CH2Cl2 / 24 h / Ambient temperature View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) NaNH2, Et(OCH2CH2)2OH / 1.) THF, 2 h, 2.) THF 2: 60 percent / CuCl2, CuO / acetone; H2O / 0.5 h / 35 °C View Scheme |
1-nitrocyclopentene
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 81 percent / 15percent H2O2, 2N NaOH / methanol / 0.08 h 2: 1.) ClSiMe3, 2.) Et3N / 1.) CH2Cl2, 0 deg C, 5 h, 2.) CH2Cl2, 0 deg C to r.t., 1 h View Scheme |
cyclopentane-1,2-dione
2-methyl-propan-1-ol
3-isobutoxy-2-cyclopentenone
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid at 85℃; for 18h; | 95% |
cyclopentane-1,2-dione
3-chloro-2-hydroxycyclopent-2-enone
Conditions | Yield |
---|---|
With N-chloro-succinimide In water; acetonitrile at 20℃; for 40h; Inert atmosphere; | 94% |
cyclopentane-1,2-dione
1-hydroxycyclobutane-1-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: cyclopentane-1,2-dione With N-benzyl-trimethylammonium hydroxide at 25℃; for 7h; Neat (no solvent); Stage #2: With hydrogenchloride In water pH=2.6; | 89% |
Conditions | Yield |
---|---|
With N-Bromosuccinimide In water; acetone at 20℃; for 16h; | 89% |
With N-Bromosuccinimide In water; acetone at 20℃; |
cyclopentane-1,2-dione
1-styrenyloxytrimethylsilane
Conditions | Yield |
---|---|
With ammonium cerium(IV) nitrate In acetonitrile at -35℃; Alkylation; | 87% |
cyclopentane-1,2-dione
Conditions | Yield |
---|---|
With 3 A molecular sieve; Amberlyst-15 ion exchange resin In dichloromethane at 45℃; | 87% |
cyclopentane-1,2-dione
p-toluenesulfonyl chloride
2-p-toluenesulfonyloxy-2-cyclopentenone
Conditions | Yield |
---|---|
With pyridine for 2h; Ambient temperature; | 85.6% |
cyclopentane-1,2-dione
(2S)-2-(methoxymethyl)-1-pyrrolidine
2-((S)-2-Methoxymethyl-pyrrolidin-1-yl)-cyclopent-2-enone
Conditions | Yield |
---|---|
3 A molecular sieve In benzene for 10h; Ambient temperature; | 85% |
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene; lithium bromide In tetrahydrofuran at -15 - 45℃; | 83% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene; lithium bromide In tetrahydrofuran at -15 - 45℃; for 20h; | 83.3% |
cyclopentane-1,2-dione
1-(3-Amino-5-nitro-naphthalen-2-yl)-tridecan-1-one
2-(8-Nitro-3-tridecanoyl-naphthalen-2-ylamino)-cyclopent-2-enone
Conditions | Yield |
---|---|
In acetic acid | 78% |
cyclopentane-1,2-dione
(2,2-diethoxyvinylidene)triphenylphosphorane
A
2-Ethoxy-2-cyclopenten-1-on
B
ethyl (triphenylphosphoranylidene)acetate
Conditions | Yield |
---|---|
In diethyl ether Ambient temperature; | A 75% B n/a |
cyclopentane-1,2-dione
allyl alcohol
2-(allyloxy)cyclopent-2-en-1-one
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid for 0.166667h; Dean-Stark; Reflux; regioselective reaction; | 74% |
cyclopentane-1,2-dione
2,4-dimethylcarbonohydrazide
2,4,9,11-Tetramethyl-1,2,4,5,8,9,11,12-octaazadispiro<5.0.5.3>pentadecan-3,10-dion
Conditions | Yield |
---|---|
In acetic acid for 1h; | 69% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane for 0.5h; Ambient temperature; | 65% |
cyclopentane-1,2-dione
benzylamine
2-(Benzylamino)-2-cyclopenten-1-on
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In chloroform Heating; | 65% |
cyclopentane-1,2-dione
vinyl magnesium bromide
2‐hydroxy‐2‐vinylcyclopentan‐1‐one
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; Cooling with ice; | 64% |
In tetrahydrofuran | 53% |
In tetrahydrofuran |
cyclopentane-1,2-dione
p-toluidine
2-(4-Methylphenylamino)-2-cyclopenten-1-on
Conditions | Yield |
---|---|
63% |
cyclopentane-1,2-dione
m-Anisidine
2-((3-methoxyphenyl)amino)cyclopent-2-enone
Conditions | Yield |
---|---|
57% |
cyclopentane-1,2-dione
acryloyl chloride
(4-{[tert-butyl(dimethyl)silyl]oxy}butyl)amine
N-[(4-tertbutyldimethylsilyloxy)butyl]-N-(5-oxocyclopentenyl)acrylamide
Conditions | Yield |
---|---|
Stage #1: cyclopentane-1,2-dione; (4-{[tert-butyl(dimethyl)silyl]oxy}butyl)amine In benzene for 2h; Heating; Stage #2: acryloyl chloride With N,N-diethylaniline In benzene at 20℃; for 1h; Further stages.; | 56% |
Stage #1: cyclopentane-1,2-dione; (4-{[tert-butyl(dimethyl)silyl]oxy}butyl)amine In benzene Reflux; Stage #2: acryloyl chloride With N,N-diethylaniline In benzene at 0℃; | 56% |
Conditions | Yield |
---|---|
Stage #1: trimethylsilylacetylene With ethylmagnesium bromide In tetrahydrofuran at -5℃; for 0.5h; Inert atmosphere; Stage #2: cyclopentane-1,2-dione In tetrahydrofuran at -5℃; for 2h; Inert atmosphere; | 55% |
cyclopentane-1,2-dione
4-aminoacridine-3-carbaldehyde
benzo[b]-1,10-phenanthroline
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol for 20h; Friedlaender reaction; Heating; | 52% |
cyclopentane-1,2-dione
1,2,3,5,6,7-hexahydrodicyclopenta[b,e]pyrazine
Conditions | Yield |
---|---|
With ammonium formate In N,N-dimethyl-formamide at 85℃; for 2h; Schlenk technique; Inert atmosphere; | 51% |
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