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
Cas:623-73-4
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur 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
Cas:623-73-4
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquirychengdu and import and export trade co., LTD., who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do res
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
Ethyl diazoacetate CAS:623-73-4 Specification Welcome to contact us to get complete COA. Shanghai Lonwin Chemical Co.,Ltd is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceutical
Cas:623-73-4
Min.Order:1 Kilogram
FOB Price: $100.0 / 150.0
Type:Other
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
Cas:623-73-4
Min.Order:0 Metric Ton
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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
Cas:623-73-4
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Type:Lab/Research institutions
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
Cas:623-73-4
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
SAGECHEM 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
Cas:623-73-4
Min.Order:0 Metric Ton
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Type:Lab/Research institutions
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
high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:623-73-4
Min.Order:1 Kilogram
FOB Price: $112.0
Type:Trading Company
inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:623-73-4
Min.Order:0
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Type:Lab/Research institutions
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China
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:623-73-4
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryChangzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa
1. Subsidiary of Institute of Chemistry, Henan Academy of Sciences, national research platform;2. About 30 years’ experience in this field since 1983;3. An experienced R&D team consisting of Doctors and Masters;4. Various types of analytical instrume
Cas:623-73-4
Min.Order:0
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Type:Lab/Research institutions
inquiryBetterbiochem is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in
Best quality & Attractive price & Professional service; Trial & Pilot & CommercialHenan Fine Chemicals Co., LTD. is a diversified technology - oriented integrated company, which mainly concentrates on fine chemicals. Our company is committed to becom
Aopharm is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in modes of tran
United Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat
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Min.Order:0
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Type:Lab/Research institutions
inquiryplease contact us to confirm the required quantity and quote, we will provide you with COA,NMR,HPLC and other relevant informationAppearance:Pale yellow liquid Storage:Store in a cool place. Keep container tightly closed in a dry and well-ventilated
Acetic acid, 2-diazo-,ethyl ester Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By courier like DHL or Fedx. Port:Shanghai/Shenzhen
good quality, better price and bettter service;Timely delivery;100% refunded if parcel is t delivered or poor quality.We will try to satisfy you upon receipt of your reply. I hope that we can become a long-term cooperative partner. Application:interm
Do best quality products, erect the morality model Application:please email us, thanks
1.We have rich experience in the development and production 2.Our factory is in Shanghai of China,We have convenient traffic conditions.3.We have advanced testing equipment and shipping line. Package:5g, 10g, 50g, 100g, 1kg Application:Pharmaceutical
Conditions | Yield |
---|---|
With hydrogenchloride; sodium sulfite; sodium nitrite In dichloromethane; water at 3℃; for 4h; pH=4.3; Solvent; Temperature; Reagent/catalyst; pH-value; Large scale; | 98.4% |
With citric acid; sodium hydroxide; sodium nitrite In o-xylene; para-xylene; ethylbenzene; water; m-xylene at 10℃; for 24h; | 94.4% |
Stage #1: glycine ethyl ester hydrochloride With sodium nitrite In dichloromethane; water for 0.5h; Schlenk technique; Cooling with ice; Stage #2: With sulfuric acid In dichloromethane; water at -10℃; for 0.333333h; Schlenk technique; | 87% |
(Z)-3-pyrrolidin-1-yl-but-2-enoic acid ethyl ester
perfluorobutanesulfonyl azide
A
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 0.5h; | A n/a B 96% |
(Z)-3-pyrrolidin-1-yl-but-2-enoic acid ethyl ester
1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)-ethanesulfonyl azide
A
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 0.5h; | A n/a B 85% |
β-morpholinoethylcrotonate
1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)-ethanesulfonyl azide
A
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 0.5h; | A n/a B 85% |
1,2,3,4-tetrachloro-5,6-dinitrobenzene
GlyOEt*HCl
A
diazoacetic acid ethyl ester
B
N-(ethylacetoxy)-2,3,4,5-tetrachloro-6-nitroaniline
Conditions | Yield |
---|---|
In toluene for 1h; Heating; | A 17% B 83% |
perfluorobutanesulfonyl azide
β-morpholinoethylcrotonate
A
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 0.5h; | A n/a B 81% |
β-morpholinoethylcrotonate
1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy)-ethanesulfonyl azide
A
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 0.5h; | A n/a B 81% |
(Z)-3-pyrrolidin-1-yl-but-2-enoic acid ethyl ester
1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)-ethanesulfonyl azide
A
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 0.5h; | A n/a B 80% |
1-(p-nitrophenyl)-3-(ethoxycarbonylmethyl)triazene
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With acetic acid In dichloromethane; water | 66% |
In chloroform Ambient temperature; |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With cis-nitrous acid | |
With cis-nitrous acid |
Conditions | Yield |
---|---|
With cis-nitrous acid | |
With cis-nitrous acid |
(N-nitroso-hydrazino)-acetic acid ethyl ester
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With cis-nitrous acid |
5-phenyl-[1,2,3]oxadiazole-4-carboxylic acid ethyl ester
A
diazoacetic acid ethyl ester
B
benzoic acid
ethyl 2-diazo-3-oxo-3-phenylpropanoate
A
diazoacetic acid ethyl ester
B
benzoic acid
(triphenylphosphoranylidene-hydrazono)-acetic acid ethyl ester
A
diazoacetic acid ethyl ester
B
triphenylphosphine
Conditions | Yield |
---|---|
at 140 - 160℃; |
Conditions | Yield |
---|---|
With cis-nitrous acid | |
With cis-nitrous acid | |
With isopentyl nitrite var. reag.: NaNO2; |
pyrrolidine
mononitrosated DL-benzoylphenylalanylglycine ethyl ester
A
diazoacetic acid ethyl ester
B
N-(1-oxo-3-phenyl-1-(pyrrolidin-1-yl)propan-2-yl)benzamide
Conditions | Yield |
---|---|
In dichloromethane for 0.0833333h; |
pyrrolidine
dinitrosated DL-benzoylphenylalanylglycylglycine ethyl ester
A
diazoacetic acid ethyl ester
B
α-diazo-N,N-tetramethyleneacetamide
C
N-(1-oxo-3-phenyl-1-(pyrrolidin-1-yl)propan-2-yl)benzamide
Conditions | Yield |
---|---|
In dichloromethane for 0.0833333h; |
ethyl (E,Z)-6-azido-3-butylhexa-2,4-dienoate
A
2-butyl-1H-pyrrole
B
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In benzene at 70℃; for 1.5h; |
ethyl (E,Z)-6-azido-3-butylhexa-2,4-dienoate
A
2-butyl-1H-pyrrole
B
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In benzene at 78℃; for 0.666667h; Title compound not separated from byproducts; |
ethyl N-methoxycarbonyl-N-nitrosoglycinate
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With pyrrolidine In dichloromethane for 0.0833333h; Ambient temperature; |
mononitrosated DL-benzoylphenylalanylglycine ethyl ester
A
diazoacetic acid ethyl ester
B
N-(1-oxo-3-phenyl-1-(pyrrolidin-1-yl)propan-2-yl)benzamide
Conditions | Yield |
---|---|
With pyrrolidine In dichloromethane for 0.0833333h; |
dinitrosated DL-benzoylphenylalanylglycylglycine ethyl ester
A
diazoacetic acid ethyl ester
B
α-diazo-N,N-tetramethyleneacetamide
C
N-(1-oxo-3-phenyl-1-(pyrrolidin-1-yl)propan-2-yl)benzamide
Conditions | Yield |
---|---|
With pyrrolidine In dichloromethane for 0.0833333h; |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With water In acetonitrile at 0℃; |
Conditions | Yield |
---|---|
at 45℃; Rate constant; |
A
diazoacetic acid ethyl ester
B
ethyl 2-diazo-3-oxo-propanoate
Conditions | Yield |
---|---|
With 2-azido-1-ethylpyridin-1-ium tetrafluoroborate; acetic acid In methanol; water for 2.5h; Ambient temperature; Yield given. Yields of byproduct given; |
3-oxo-propionic acid ethyl ester
aniline
A
diazoacetic acid ethyl ester
B
ethyl 2-diazo-3-oxo-propanoate
Conditions | Yield |
---|---|
With 2-azido-1-ethylpyridinium fluoroborate; sodium acetate Yield given. Yields of byproduct given; |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With sodium nitrite Reaktion ueber mehrere Stufen; | |
With sulfuric acid; sodium nitrite | |
With water; sodium acetate; sodium nitrite |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With barium dihydroxide; diethyl ether; barium(II) oxide at -10℃; |
styrene
diazoacetic acid ethyl ester
ethyl 2-phenylcyclopropylcarboxylate
Conditions | Yield |
---|---|
With (5,10,15,20-tetra-p-tolylporpyrinato)iron(II); benzaldehyde In toluene at 20℃; | 100% |
2 In toluene at 100℃; | 96% |
dirhodium tetraacetate Ambient temperature; | 95% |
diazoacetic acid ethyl ester
1,1-Diphenylethylene
ethyl 2,2-diphenylcyclopropane-1-carboxylate
Conditions | Yield |
---|---|
With μ-carbido-bis[2,3,9,10,16,17,23,24-octa-n-butoxyphthalocyaninatoruthenium(IV)] In dichloromethane; toluene at 90℃; for 6h; Inert atmosphere; | 100% |
With μ-oxo-diiron octapropylporphyrazine In toluene at 70℃; for 2h; Inert atmosphere; | 100% |
cobalt(II) 5,10,15,20-tetraphenylporphyrin In dichloromethane for 7h; Heating; | 99% |
Conditions | Yield |
---|---|
dirhodium tetraacetate In dichloromethane at 20℃; for 0.0833333h; | 100% |
With polystyrene-linked tris(triazolyl)methane copper(I)(NCMe)][PF6] In neat (no solvent) for 3h; Inert atmosphere; | 98% |
copper(II) bis(trifluoromethanesulfonate) at 22℃; | 97% |
diazoacetic acid ethyl ester
4-methoxy-benzaldehyde
ethyl-3-hydroxy-2-diazo-3-(4-methoxyphenyl)-propanoate
Conditions | Yield |
---|---|
With n-butyllithium; diisopropylamine; lithium diisopropyl amide In tetrahydrofuran; hexane at -78℃; Inert atmosphere; | 100% |
With magnesium iodide etherate; triethylamine In dichloromethane at 20℃; for 0.25h; | 92% |
With magnesium iodide etherate; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Aldol Addition; | 92% |
diazoacetic acid ethyl ester
benzene
ethyl cyclohepta-2,4,6-trienecarboxylate
Conditions | Yield |
---|---|
With Ag3(μ2-(3,5-(CF3)2PyrPy))3 In dichloromethane; benzene at 25℃; for 2h; Catalytic behavior; Time; Solvent; Buchner Ring Enlargement; Darkness; | 100% |
rhodium(II) trifluoroacetate dimer at 22℃; for 2h; | 98% |
With C28H6Au2Cu2F24N2 In cyclohexane for 12h; Inert atmosphere; | 98% |
diazoacetic acid ethyl ester
iodo-diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
With N-iodo-succinimide; 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 0℃; for 0.0833333h; | 100% |
(i) Ag2O, Et2O, (ii) I2; Multistep reaction; | |
Stage #1: diazoacetic acid ethyl ester In dichloromethane at 0℃; Stage #2: With N-iodo-succinimide; 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 0℃; for 0.0833333h; |
diazoacetic acid ethyl ester
2-dimethylaminomalonic acid diethyl ester
diethyl 2-(ethoxycarbonylmethylene)malonate
Conditions | Yield |
---|---|
With copper In toluene Heating; | 100% |
diazoacetic acid ethyl ester
N-tert-butyloxycarbonylpiperidin-4-one
5-oxo-azepane-1,4-dicarboxylic acid 1-tert-butyl ester 4-ethyl ester
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonylpiperidin-4-one With boron trifluoride diethyl etherate In diethyl ether at -30 - -25℃; for 0.333333h; Stage #2: diazoacetic acid ethyl ester In diethyl ether at -30 - 20℃; | 100% |
With boron trifluoride diethyl etherate In diethyl ether at -25℃; for 1h; Inert atmosphere; | 99% |
Stage #1: diazoacetic acid ethyl ester; N-tert-butyloxycarbonylpiperidin-4-one With boron trifluoride diethyl etherate In diethyl ether at 0℃; for 2h; Stage #2: With sodium carbonate In diethyl ether; water at 0℃; | 98% |
diazoacetic acid ethyl ester
acrylonitrile
5-cyano-4,5-dihydro-1H-pyrazole-3-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
In pyridine at 60℃; for 3h; | 100% |
With 1,4-diaza-bicyclo[2.2.2]octane at 20℃; for 6h; neat (no solvent); | 52% |
diazoacetic acid ethyl ester
ethyl acrylate
diethyl Δ2-pyrazoline-3,5-dicarboxylate
Conditions | Yield |
---|---|
at 22℃; for 5h; | 100% |
In pyridine at 60℃; for 3h; | 99% |
With water at 20℃; for 3h; Green chemistry; | 99% |
diazoacetic acid ethyl ester
ethyl α-deuteriodiazoacetate
Conditions | Yield |
---|---|
With deuteriated sodium hydroxide; cetyldimethylbenzylammonium chloride In dichloromethane; water-d2 for 24h; | 100% |
With water-d2; potassium carbonate In diethyl ether for 12h; | 65% |
With deuteriated sodium hydroxide; water-d2; cetyltrimethylammonim bromide In dichloromethane for 48h; Ambient temperature; |
diazoacetic acid ethyl ester
ethyl glyoxalate hydrate
Conditions | Yield |
---|---|
With 3,3-dimethyldioxirane In acetone Ambient temperature; | 100% |
diazoacetic acid ethyl ester
4-O-acetyl-2,3:5,6-di-O-isopropylidene-aldehydo-D-mannose
(R)-3-{(4R,5R)-5-[(R)-Acetoxy-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-methyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-diazo-3-hydroxy-propionic acid ethyl ester
Conditions | Yield |
---|---|
for 8h; Ambient temperature; in the dark; | 100% |
With diethylzinc for 8h; | 98% |
Conditions | Yield |
---|---|
With dirhodium tetraacetate at 80℃; for 1h; Mechanism; other cyanamides; | 100% |
With dirhodium tetraacetate at 80℃; for 1h; | 100% |
With dirhodium tetraacetate In benzene at 80℃; for 1h; |
diazoacetic acid ethyl ester
1-(trifluoromethyl)ethenyl phenyl sulfide
Conditions | Yield |
---|---|
In benzene a) 20 deg C, 15 min, b) 50 deg C, 45 min, c) reflux, 16 h; | 100% |
diazoacetic acid ethyl ester
1-chloro-3-hydroxypropane
ethyl 2-(3-chloropropoxy)acetate
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In dichloromethane at 0 - 37℃; | 100% |
With boron trifluoride diethyl etherate In dichloromethane for 3h; | 75% |
boron trifluoride diethyl etherate In dichloromethane at 37℃; cooling with ice-methanol; | 65% |
boron trifluoride diethyl etherate In chloroform for 3h; Condensation; | |
With trifluoroborane diethyl ether In 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran |
diazoacetic acid ethyl ester
N-acetyl dehydrophenylalanine methyl ester
4-Methyl 5-ethyl 4-acetylamino-3-phenyl-Δ2-pyrazoline-4,5-dicarboxylate
Conditions | Yield |
---|---|
dirhodium tetraacetate In chloroform for 6h; Heating; | 100% |
rhodium(II) acetate Cycloaddition; | 40% |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
In benzene at 20℃; for 12h; Cycloaddition; elimination; | 100% |
diazoacetic acid ethyl ester
ethyl 2-acetamido-2-(ethoxycarbonyl)-4-pentenoate
Conditions | Yield |
---|---|
dirhodium tetraacetate In dichloromethane at 22℃; | 100% |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
dirhodium tetraacetate In dichloromethane at 22℃; | 100% |
Conditions | Yield |
---|---|
With palladium dichloride In dichloromethane; toluene at 55℃; | 100% |
Conditions | Yield |
---|---|
With palladium dichloride In dichloromethane; toluene at 55℃; | 100% |
Conditions | Yield |
---|---|
With palladium dichloride In dichloromethane; toluene at 55℃; for 18h; | 100% |
diazoacetic acid ethyl ester
Conditions | Yield |
---|---|
tin(ll) chloride In dichloromethane Heating; | 100% |
diazoacetic acid ethyl ester
acrolein
ethyl-2-formyl-1-cyclopropane carboxylate
Conditions | Yield |
---|---|
With tetrafluoroboric acid diethyl ether In dichloromethane at -78℃; for 24h; | 100% |
Conditions | Yield |
---|---|
With tetrafluoroboric acid diethyl ether In diethyl ether; dichloromethane at 23 - 38℃; Inert atmosphere; | 100% |
With tetrafluoroboric acid diethyl ether In dichloromethane |
Conditions | Yield |
---|---|
With tetrafluoroboric acid diethyl ether In diethyl ether; dichloromethane at 23 - 38℃; Inert atmosphere; | 100% |
With tetrafluoroboric acid diethyl ether In dichloromethane |
diazoacetic acid ethyl ester
benzyl 4-oxo-1-piperidinecarboxylate
1-benzyl 4-ethyl 5-oxoazepane-1,4-dicarboxylate
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In diethyl ether | 100% |
With boron trifluoride diethyl etherate In diethyl ether at -78℃; for 1h; | 100% |
With boron trifluoride diethyl etherate In diethyl ether at -40℃; for 1h; | 99% |
diazoacetic acid ethyl ester
1-benzyl-1H-pyrrole-2,5-dione
ethyl 5-benzyl-4,6-dioxo-1,3a,4,5,6,6a-hexahydropyrrolo[3,4-c]pyrazole-3-carboxylate
Conditions | Yield |
---|---|
In diethyl ether | 100% |
In diethyl ether at 20℃; for 36h; Diels-Alder Reaction; | 89% |
In diethyl ether for 36h; | 89% |
Conditions | Yield |
---|---|
In diethyl ether at room temp.;; | 100% |
In diethyl ether at room temp.;; | 100% |
In diethyl ether; dichloromethane at 20℃; for 6h; Schlenk technique; Inert atmosphere; | 99% |
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