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CAS RN.: 623-70-1;10544-63-5 EINECS: 210-808-7;234-125-9 Molecular Weight:
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inquiryCAS 623-70-1 C6H10O2 Ethyl crotonate Physical State: Liquid Color: clear, colorless Odor: none reported pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 142.0 -
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Ethyl crotonate//623-70-1 CAS NO.623-70-1 CAS NO.623-70-1 Application:Ethyl crotonate//623-70-1 CAS NO.623-70-1 CAS NO.623-70-1
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Our Advantages 1>Professional quality control department 2>Strict inspection system for receiving inspection,in-process and finished products. 3>ISO quality system. 4>All of our service comply to CUSTOMER FIRST. Appearance:Color
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inquiry1.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
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Cas:623-70-1
Min.Order:1 Kilogram
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inquiryWatson International Ltd' has a very strong R&D and technical capacity supported by FCAD's platform. The subsidiaries under FCAD Group have accumulated much know-how of different fine chemical branches. For example, Apnoke Scientific L
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Compound sourcing ServicesAgency of testing serviceFactory audit serviceFounded in Dec. 1999, Nanjing Chemlin Chemical Industrial Co.,Ltd(CHEMLIN) has been covering the business scope from trading of chemicals to custom-synthesis & Manufacturing. Co
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inquiry3-(ethylthio)-butanoic acid, ethyl ester
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With tetrabutylammomium bromide In ethanol electrolysis; | 98% |
Conditions | Yield |
---|---|
di(rhodium)tetracarbonyl dichloride In benzene under 20685.9 Torr; for 18h; Ambient temperature; | 97% |
diethoxyphosphoryl-acetic acid ethyl ester
acetaldehyde
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With potassium carbonate In 1,4-dioxane at 25℃; for 2.2h; | 95% |
With sodium hydride In tetrahydrofuran 1.) r.t., 1 h; 2.) -70 deg C then up to 0 deg C over 2 h; | 90% |
Stage #1: diethoxyphosphoryl-acetic acid ethyl ester With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.5h; Stage #2: acetaldehyde In tetrahydrofuran; mineral oil at 0 - 20℃; |
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With CF3CO2H In benzene-d6 React. at 25°C, 10 h.; Monitored by (1)H-NMR.; | 95% |
Conditions | Yield |
---|---|
silver-graphite; zinc In tetrahydrofuran at -78℃; for 0.166667h; | 79% |
Conditions | Yield |
---|---|
With sulfuric acid In benzene Heating; | 78.5% |
With sulfuric acid; magnesium sulfate In benzene Heating; Yield given; | |
With phosphorus pentoxide 1.) 0-5 deg C, 2.) reflux, 3 h; Yield given. Multistep reaction; | |
With bis(2,2,2-trifluoroethoxy)diphenylsulfurane 1.) THF, -78 deg C, 2.) THF, -78 deg C; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With bis(triphenylphosphine)nickel(II) chloride; n-butyllithium; 1,8-diazabicyclo[5.4.0]undec-7-ene; triphenylphosphine In tetrahydrofuran; hexane Ambient temperature; | 77% |
Conditions | Yield |
---|---|
sulfuric acid In ethanol for 2h; Heating; | 73% |
carbon monoxide
sodium ethanolate
allyl bromide
A
ethyl 3-butenoate
B
ethyl (E)-crotonate
Conditions | Yield |
---|---|
Na2PdCl4-dppe In ethanol at 50℃; for 2h; | A 17% B 72% |
Conditions | Yield |
---|---|
for 2h; Solid phase reaction; esterification; | 69% |
(E)-crotonaldehyde diethyl acetal
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; dipyridinium dichromate In dichloromethane for 7h; Ambient temperature; | 67% |
diethoxyphosphoryl-acetic acid ethyl ester
4-methyl-benzaldehyde
ethyl (E)-crotonate
Conditions | Yield |
---|---|
C-200 (barium hydroxide) In tetrahydrofuran; water for 0.166667h; Ambient temperature; sonication; | 61% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine)nickel(0) In N,N,N,N,N,N-hexamethylphosphoric triamide for 3h; Heating; | 55% |
3-aminobutanoic acid ethyl ester
4-chloro-2,2-dimethyl-2H-benzo[e][1,3]oxazine
A
2,4-bis(2-hydroxyphenyl)-6-methylpyrimidine
C
ethyl (E)-crotonate
Conditions | Yield |
---|---|
at 150 - 160℃; for 4h; | A 38% B 10% C n/a |
at 150 - 160℃; for 4h; Product distribution; Mechanism; | A 38% B 10% C n/a |
(E)-but-2-enoic acid
(2,2-diethoxyvinylidene)triphenylphosphorane
A
ethyl (E)-crotonate
B
ethyl (triphenylphosphoranylidene)acetate
Conditions | Yield |
---|---|
In tetrahydrofuran for 3h; Ambient temperature; | A 33% B n/a |
ethanol
carbon monoxide
3-chloroprop-1-ene
A
ethyl 3-butenoate
B
ethyl (E)-crotonate
Conditions | Yield |
---|---|
carbonylchlorobis(triethylphosphine)rhodium(I) at 120℃; under 30002.4 Torr; for 4h; | A 28% B 12 % Turnov. |
3-aminobutanoic acid ethyl ester
4-chloro-2-methyl-2-methoxycarbonylmethyl-2H-1,3-benzoxazine
A
2-(2-hydroxyphenyl)-6-methyl-4(3H)-pyrimidinone
B
ethyl (E)-crotonate
Conditions | Yield |
---|---|
at 170 - 180℃; for 3h; | A 26% B n/a |
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With aluminium amalgam In diethyl ether; ethanol Ambient temperature; | 18% |
Conditions | Yield |
---|---|
With sulfuric acid | |
With sulfuric acid |
Conditions | Yield |
---|---|
With aluminum oxide at 325 - 350℃; |
ethanol
trans-chrotonyl chloride
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With sodium hydroxide at 0 - 5℃; |
Conditions | Yield |
---|---|
With ethanol; ammonia |
3-methyl-1,4-diphenyl-1,2,3,4-tetrahydro-1,4-epoxido-naphthalene-2-carboxylic acid ethyl ester
A
1,3-diphenylisobenzofuran
B
ethyl (E)-crotonate
Conditions | Yield |
---|---|
und Erhitzen des Reaktionsprodukts mit Kaliumacetat; |
Conditions | Yield |
---|---|
With piperidine; pyridine |
diethyl ether
2-methyl-butane-1,3,3-tricarboxylic acid triethyl ester
sodium ethanolate
methyl iodide
A
2,2-dimethylmalonic acid diethyl ester
B
ethyl (E)-crotonate
Conditions | Yield |
---|---|
unter Kuehlung; |
Conditions | Yield |
---|---|
With N,N-diethylaniline |
Conditions | Yield |
---|---|
With (isomerization); diethylamine In diethyl ether at 40℃; Kinetics; other catalysts; |
4-methyloxetan-2-one
ethyl iodide
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With 18-crown-6 ether; potassium naphthalenide 1) THF, 20 deg C, 10 min; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With 2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane 2,8,9-tris(1-methylethyl) In various solvent(s) at 20℃; for 4h; Michael addition; | 100% |
Conditions | Yield |
---|---|
Stage #1: C26H38N2O4 With lithium hexamethyldisilazane In tetrahydrofuran at -78℃; for 1h; Stage #2: ethyl (E)-crotonate In tetrahydrofuran at -78 - -20℃; for 2h; Michael addition; | 100% |
Conditions | Yield |
---|---|
With lithium perchlorate; triethylamine In diethyl ether for 16h; Michael addition; | 100% |
Methyl thioglycolate
ethyl (E)-crotonate
4-ethoxycarbonyl-2-methylthiolan-3-one
Conditions | Yield |
---|---|
In ethyl acetate; N,N-dimethyl-formamide | 100% |
Conditions | Yield |
---|---|
In tetrahydrofuran | 100% |
nitromethane
ethyl (E)-crotonate
3-methyl-4-nitrobutyric acid ethyl ester
Conditions | Yield |
---|---|
With 2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane 2,8,9-tris(1-methylethyl) In various solvent(s) at -63℃; for 0.15h; Michael addition; | 99% |
With N,N,N',N'-tetramethylguanidine for 18h; | 99.2% |
With N,N,N',N'-tetramethylguanidine at 20℃; for 24h; Michael addition; | 91% |
With N,N,N',N'-tetramethylguanidine at 20℃; for 24h; Inert atmosphere; | 82% |
dimethyl amine
ethyl (E)-crotonate
3-Dimethylamino-buttersaeureethylester
Conditions | Yield |
---|---|
With carbon dioxide for 1h; Ambient temperature; | 99% |
p-methoxybenzyl chloride
ethyl (E)-crotonate
ethyl 4-(4-methoxyphenyl)-3-methylbutanoate
Conditions | Yield |
---|---|
Stage #1: p-methoxybenzyl chloride With iodine; magnesium In tetrahydrofuran for 2h; Stage #2: With copper(l) iodide; N,N,N,N,-tetramethylethylenediamine In tetrahydrofuran at -78℃; for 0.833333h; Stage #3: ethyl (E)-crotonate With chloro-trimethyl-silane In tetrahydrofuran at -30℃; for 18h; | 99% |
With copper(l) iodide; chloro-trimethyl-silane; N,N,N,N,-tetramethylethylenediamine; iodine; magnesium Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With indium(III) chloride In 1,2-dichloro-ethane at 60℃; for 18h; Inert atmosphere; | 99% |
2-aminophenylboronic acid
ethyl (E)-crotonate
4-methyl-3,4-dihydroquinolin-2(1H)-one
Conditions | Yield |
---|---|
With [Rh(OH)(cod)]2; potassium carbonate In water at 50℃; for 5h; Inert atmosphere; | 99% |
Conditions | Yield |
---|---|
With bromine In tetrachloromethane for 2h; Heating; | 98% |
With bromine In tetrachloromethane for 24h; Heating; | 78% |
With N-Bromosuccinimide In 1,4-dioxane; water |
butyraldehyde
ethyl (E)-crotonate
3-methyl-4-oxo-heptanoic acid ethyl ester
Conditions | Yield |
---|---|
With triisopropylsilanethiol; trans-di-O-tert-butyl hyponitrite In 1,4-dioxane at 60℃; for 3.5h; | 98% |
trimethyl(4-mercaptomethylphenyl)silane
ethyl (E)-crotonate
3-(4-trimethylsilanyl-benzylsulfanyl)-butyric acid ethyl ester
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 0.5h; Michael addition; | 98% |
With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 0.5h; Michael addition; | 98% |
N-(diphenylmethylene)glycine tert-butyl ester
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With 4 A molecular sieve; calcium bis-iso-propoxide; 2,2'-methylene bis((4S)-4-phenyl-2-oxazoline) In tetrahydrofuran at -30℃; for 12h; Michael addition; | 98% |
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With dichlorobis(tri-O-tolylphosphine)palladium; tetrabutylammomium bromide; triethylamine In N,N-dimethyl-formamide at 110℃; Inert atmosphere; | 98% |
With tetrakis(tris(2-methyl)phenyl)phosphinepalladium; tetrabutylammomium bromide; triethylamine In N,N-dimethyl-formamide at 110℃; Inert atmosphere; | 81% |
Conditions | Yield |
---|---|
With ytterbium(III) triflate In tetrahydrofuran for 6h; Ambient temperature; | 97% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile for 20h; Kinetics; Solvent; Temperature; Time; Michael Addition; Reflux; | 86% |
In ethanol at 20℃; for 38h; | 84.3% |
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; copper(l) chloride In tetrahydrofuran for 1h; 0 to 20 deg C; | 97% |
ethyl (E)-crotonate
((R)-1-Phenyl-ethyl)-(3-trimethylsilanyl-prop-2-ynyl)-amine
(R)-3-[((R)-1-Phenyl-ethyl)-(3-trimethylsilanyl-prop-2-ynyl)-amino]-butyric acid ethyl ester
Conditions | Yield |
---|---|
97% |
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In 1-methyl-pyrrolidin-2-one at 140℃; for 1h; Michael Addition; | 97% |
Conditions | Yield |
---|---|
With tetraethoxy orthosilicate; cesium fluoride In neat (no solvent) at 25℃; for 0.166667h; | 96% |
Ethyl propionate
ethyl (E)-crotonate
Diethyl 2,3-dimethylpentanedioate
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran; hexane at -78℃; for 1h; | 96% |
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; copper(l) chloride In tetrahydrofuran 0 to 20 deg C, 0.5-1.5 h; other α,β-ethylenic ester, other organomanganese chlorides; | 96% |
With chloro-trimethyl-silane; copper(l) chloride In tetrahydrofuran 0 to 20 deg C, 0.5-1.5 h; | 96% |
ethyl (E)-crotonate
3-azidobutyric acid ethyl ester
Conditions | Yield |
---|---|
With tris-(2-chloro-ethyl)-amine; triethylamine In benzene at 80℃; for 24h; | 96% |
para-iodoanisole
ethyl (E)-crotonate
(E)-ethyl 3-(4-methoxyphenyl)but-2-enoate
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 110℃; for 6h; Heck Reaction; Inert atmosphere; | 96% |
With potassium carbonate; triphenylphosphine; palladium diacetate In N,N-dimethyl-formamide for 0.15h; Heck reaction; microwave irradiation; | 87% |
ethyl (E)-crotonate
(2S,3R)-ethyl 2,3-dihydroxybutanoate
Conditions | Yield |
---|---|
With methanesulfonamide In water; tert-butyl alcohol at 0 - 24℃; Sharpless dihydroxylation; | 96% |
N-methoxylamine hydrochloride
ethyl (E)-crotonate
(2E)-N-methoxybut-2-enamide
Conditions | Yield |
---|---|
Stage #1: N-methoxylamine hydrochloride With lithium hexamethyldisilazane In tetrahydrofuran at -78℃; for 1h; Stage #2: ethyl (E)-crotonate In tetrahydrofuran | 96% |
ethyl (E)-crotonate
Conditions | Yield |
---|---|
In toluene at 40℃; for 24h; Inert atmosphere; | 96% |
ethyl (E)-crotonate
Conditions | Yield |
---|---|
With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium carbonate In N,N-dimethyl-formamide at 110℃; for 4h; Inert atmosphere; | 96% |
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