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Cas:123-73-9
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inquiryOur advantages: 1. High quality and competitive price: 1) Standard: BP/USP/EP/ enterprise standard 2) All purity ≥99% 3) We are manufacturers and can provide high quality products at factory prices. 2. Fast and safe delivery 1) The package c
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Cas:123-73-9
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inquiryProduct Name: Crotonaldehyde CAS: 123-73-9 MF: C4H6O MW: 70.09 EINECS: 204-647-1 Mol File: 123-73-9.mol Crotonaldehyde Structure Crotonaldehyde Chemical Properties Melting point −76 °C(lit.) Boiling point 104 &de
Crotonaldehyde CAS:123-73-9 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 intermediate
Cas:123-73-9
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Crotonaldehyde CAS:123-73-9 Specification Items Specification Appearance Yellow liquid Purity 99%min Water 0.3%max Welcome t
Appearance:Colorless and transparent liquid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:Common pro
Cas:123-73-9
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Cas:123-73-9
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Cas:123-73-9
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inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
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inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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inquiry(E)-2-(prop-1-en-1-yl)-1,3-dioxolane
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With cerium triflate In nitromethane; water at 20℃; for 0.5h; | 99% |
Conditions | Yield |
---|---|
With lithium phosphate In hexane at 310℃; Isomerization; | 98.9% |
Conditions | Yield |
---|---|
With N-chloro-N-(benzenesulfonyl)benzenesulfonamide In chloroform at 20 - 25℃; for 0.166667h; Inert atmosphere; chemoselective reaction; | 97% |
With bis(cyclopentadienyl)dihydrozirconium; benzaldehyde In toluene at 110℃; for 8h; | 92% |
With [2,2]bipyridinyl; 2,2,6,6-tetramethyl-piperidine-N-oxyl; potassium tert-butylate; copper(ll) bromide In water; acetonitrile at 20℃; for 5h; | 91% |
Conditions | Yield |
---|---|
tetra-n-heptylammonium iodide; tributyltin iodide In para-xylene at 109 - 117℃; for 0.75h; | A 96.1% B n/a C n/a |
Conditions | Yield |
---|---|
With lithium phosphate In hexane at 300℃; Product distribution; Further Variations:; Temperatures; various substrate concentration; Isomerization; | A 92% B 3.3% |
With lithium phosphate In hexane at 300℃; Isomerization; | A 92% B 3.3% |
2'-Deoxyguanosine
acetaldehyde
A
trans-Crotonaldehyde
B
8-hydroxy-3-(4-hydroxy-5-hydroxymethyl-tetra-hydrofuran-2-yl)-6-methyl-5,6,7,8-tetrahydro-3H-1,3,4,5,8a-pentaaza-cyclopenta[b]naphthalen-9-one
Conditions | Yield |
---|---|
With L-arginine In phosphate buffer at 37℃; for 8h; pH=8.0; Michael addition; | A n/a B 92% |
Conditions | Yield |
---|---|
oxonium In water at 25℃; Rate constant; ketonization; variation of pH; | A 90.1% B n/a |
trans-1,1,-diacetoxy-2-butene
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With N,N'-dibromo-N,N'-(1,2-ethanediyl)bis(p-toluenesulfonamide); water at 20℃; for 0.0666667h; solid-phase reaction; | 90% |
5-Brom-2-trans-penten-1-ol
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With pyridinium chlorochromate In dichloromethane for 1.5h; | 89% |
Conditions | Yield |
---|---|
dodecanyltriphenylphosphonium iodide; tributyltin iodide In para-xylene at 110 - 119℃; for 0.883333h; | A 87.2% B n/a |
tetra-n-butylphosphonium iodide; tributyltin iodide In 1,2-dichloro-benzene at 130℃; for 0.25h; | A 86.1% B n/a |
3-methyl-2-phenyl-2,2-(trimethylenedioxy)-1,2λ5-oxaphosphol-4-ene
A
2-phenyl-[1,3,2]dioxaphosphinane
B
trans-Crotonaldehyde
Conditions | Yield |
---|---|
at 120℃; under 10 - 20 Torr; | A 71% B 86% |
(1-Methyl-3-oxo-propyl)-triphenyl-phosphonium; perchlorate
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With triethylamine In methanol; chloroform Ambient temperature; | 85% |
Conditions | Yield |
---|---|
In toluene | 79.8% |
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 0℃; for 4h; | 78% |
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 20℃; for 12h; | 74% |
2,2-(ethylenedioxy)-2-phenoxy-1,2λ5-oxaphosphol-4-ene
A
trans-Crotonaldehyde
B
ethylene phenyl phosphite
Conditions | Yield |
---|---|
at 150℃; under 10 - 15 Torr; | A 71.5% B 65% |
Conditions | Yield |
---|---|
oxonium In water at 25℃; Rate constant; ketonization; variation of pH; | A 69.8% B n/a |
3-hydroxy-butyraldehyde dimethyldithioacetal
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With dimethyl sulfoxide at 160℃; | 63% |
Conditions | Yield |
---|---|
With hydrogenchloride for 0.166667h; Title compound not separated from byproducts; | A 5% B 60% |
With hydrogenchloride for 0.166667h; | A 5% B 60% |
methyl magnesium iodide
1,2,3-triazine
A
trans-Crotonaldehyde
B
5-methyl-2,5-dihydro-1,2,3-triazine
Conditions | Yield |
---|---|
In diethyl ether for 0.5h; Product distribution; other 1,2,3-triazine and Grignard reagent; | A n/a B 42% |
In diethyl ether for 0.5h; 0 deg C to room temp.; | A n/a B 42% |
Conditions | Yield |
---|---|
With MgO-SiO 2 at 350℃; for 1h; Reagent/catalyst; Inert atmosphere; | 27.7% |
With Bi2O3-doped zinc oxide; hydrogen at 400℃; | |
With hydrogen; magnesium oxide; bismuth(III) oxide at 400℃; |
Conditions | Yield |
---|---|
at 300℃; unter Stickstoff; |
Conditions | Yield |
---|---|
With sulfuric acid |
3-ethoxy-butyraldehyde
trans-Crotonaldehyde
Conditions | Yield |
---|---|
With ammonium dihydrogen phosphate at 150℃; |
Conditions | Yield |
---|---|
With hydrogenchloride |
1,1-dimethoxyethylene
acetaldehyde
A
Trimethyl orthoacetate
B
trans-Crotonaldehyde
C
crotonic acid methyl ester
D
acetic acid methyl ester
Conditions | Yield |
---|---|
at 150℃; |
Conditions | Yield |
---|---|
With oxygen; palladium dichloride |
Cyclopropanecarboxaldehyde
A
2,3-dihydro-2H-furan
B
trans-Crotonaldehyde
C
propene
Conditions | Yield |
---|---|
at 500℃; |
Conditions | Yield |
---|---|
Stage #1: trans-Crotonaldehyde With sodium tetrahydroborate at 25℃; for 0.25h; Ball milling; neat (no solvent); Stage #2: With water regiospecific reaction; | 100% |
With C29H34BNOP2Ru In dichloromethane; isopropyl alcohol for 0.108333h; Reagent/catalyst; Solvent; Schlenk technique; Inert atmosphere; Reflux; | 99% |
With lithium aluminium tetrahydride In diethyl ether at 0℃; for 0.25h; | 96% |
Conditions | Yield |
---|---|
Stage #1: phenylacetylene With ethylmagnesium bromide In tetrahydrofuran at 50℃; for 1h; Stage #2: trans-Crotonaldehyde In tetrahydrofuran at 23 - 25℃; for 3h; Further stages.; | 100% |
Stage #1: phenylacetylene With lithium In tetrahydrofuran at 15 - 20℃; sonication; Stage #2: trans-Crotonaldehyde In tetrahydrofuran at 15 - 20℃; for 0.5h; | 53% |
(i) EtMgBr, Et2O, (ii) /BRN= 1209254/; Multistep reaction; |
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; pentane at -78℃; for 0.833333h; | 100% |
(i) EtMgBr, Et2O, (ii) /BRN= 1209254/; Multistep reaction; |
trans-Crotonaldehyde
2-chloro-2,2-difluoroacetophenone
(E)-2,2-difluoro-3-hydroxy-1-phenyl-4-hexen-1-onen
Conditions | Yield |
---|---|
With copper(l) chloride; zinc In tetrahydrofuran; diethyl ether Heating; | 100% |
With molecular sieve; copper(l) chloride; zinc In tetrahydrofuran; diethyl ether for 1h; Heating; | 100% |
Conditions | Yield |
---|---|
palladium on charcoal In hexane | 100% |
With sodium tetrahydroborate; nickel dichloride In methanol; water at 20℃; for 0.25h; | 75% |
With hydrogen; aluminum oxide; titanium-palladium at 100℃; |
trans-Crotonaldehyde
N-Phenylhydroxylamine
2-phenyl-3-methyl-5-hydroxyisoxazolidine
Conditions | Yield |
---|---|
With calcium chloride In chloroform at 20℃; for 24h; | 100% |
Conditions | Yield |
---|---|
With 3 A molecular sieve In dichloromethane for 24h; | 100% |
With 4 A molecular sieve In diethyl ether Ambient temperature; | |
With molecular sieve In dichloromethane for 24h; Ambient temperature; | |
With 4 A molecular sieve In diethyl ether Condensation; |
trans-Crotonaldehyde
3-methoxymethoxy-1-heptyne
(E)-7-methoxymethoxy-2-undecen-5-yn-4-ol
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; pentane at -78℃; for 1.5h; | 100% |
trans-Crotonaldehyde
C,N-diphenylnitrone
Conditions | Yield |
---|---|
aluminium tris(2,6-diphenylphenoxide) In dichloromethane at 0℃; for 24h; | 100% |
Conditions | Yield |
---|---|
Stage #1: pyrrole With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: trans-Crotonaldehyde In tetrahydrofuran; hexane | 100% |
Conditions | Yield |
---|---|
Stage #1: propynoic acid ethyl ester With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -78℃; for 0.5h; Stage #2: trans-Crotonaldehyde In tetrahydrofuran; hexane at -78℃; for 1.5h; | 100% |
trans-Crotonaldehyde
(3R,4S,5R)-methyl 4-formyl-2,3,5-trimethylisoxazolidine-3-carboxylate
Conditions | Yield |
---|---|
With (5S)-(−)-2,2,3-trimethyl-5-benzyl-4-imidazolidinone monohydrochloride In nitromethane at -18℃; for 168h; stereoselective reaction; | 100% |
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane for 2h; Reflux; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane for 2h; Reflux; Inert atmosphere; | 100% |
trans-Crotonaldehyde
phenylmagnesium bromide
(2E)-1-phenylbut-2-en-1-ol
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether at 0 - 20℃; for 7.5h; | 99.9% |
In tetrahydrofuran; diethyl ether at 0 - 20℃; for 4h; | 99.9% |
In tetrahydrofuran; diethyl ether at 0 - 20℃; for 7.5h; Saturated aqueous ammonium chloride solution; | 99.9% |
trans-Crotonaldehyde
4-fluoro-2-methoxyaniline
6-fluoro-8-methoxy-2-methylquinoline
Conditions | Yield |
---|---|
With hydrogenchloride In water for 2h; Reflux; | 99.8% |
Conditions | Yield |
---|---|
With triethylamine at 0℃; for 0.5h; | 99% |
With triethylamine In dichloromethane | 90% |
With 1-pentyl-3-methylimidazolium bromide at 20℃; for 1.5h; Michael addition; | 88% |
trans-Crotonaldehyde
meso-2,6-octadiene-4,5-diol
Conditions | Yield |
---|---|
With acetic acid; zinc In water at 20℃; for 0.333333h; Reagent/catalyst; Solvent; Green chemistry; | 99% |
With potassium chloride In ethanol (electrolysis); | |
With titanium tetrachloride; magnesium; tert-butyl alcohol 1.) -60 deg C to RT, 24 h, THF, 2.) 20 deg C, 72 h, THF; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With n-butyllithium; cerium(III) chloride In tetrahydrofuran; hexane at -78℃; for 1h; | 99% |
Conditions | Yield |
---|---|
With triethylamine In ethanol; water for 3h; Ambient temperature; | 99% |
Conditions | Yield |
---|---|
Stage #1: trans-Crotonaldehyde; benzaldehyde With aluminium tris(2,6-diphenylphenoxide) In toluene at -78℃; for 0.0833333h; Stage #2: With lithium diisopropyl amide In tetrahydrofuran; hexane; toluene at -78℃; for 0.5h; | 99% |
With aluminium tris(2,6-diphenylphenoxide); lithium diisopropyl amide 1.) toluene, -78 deg C, 2.) toluene, THF, -78 deg C, 15 min; Yield given. Multistep reaction; |
4-hydroxy-6-methyl-2-pyron
trans-Crotonaldehyde
2,7-dimethyl-2H,5H-pyrano<3,2-c>pyran-5-one
Conditions | Yield |
---|---|
With 2,4,8,10-Tetra-tert-butyl-6-hydroxydibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide; sodium sulfate In toluene at 60℃; Inert atmosphere; regioselective reaction; | 99% |
With piperidine; acetic anhydride In ethyl acetate at -10 - 85℃; | 66% |
Stage #1: trans-Crotonaldehyde With piperidine; acetic anhydride In ethyl acetate at -10 - 85℃; Stage #2: 4-hydroxy-6-methyl-2-pyron In ethyl acetate at 85℃; Further stages.; | 66% |
With piperdinium acetate; sodium sulfate In ethyl acetate at 80 - 90℃; for 18h; |
trans-Crotonaldehyde
triphenyl(phenylmethylene)phosphorane
(1E,3E)-1-phenyl-1,3-pentadiene
Conditions | Yield |
---|---|
Wittig reaction; | 99% |
trans-Crotonaldehyde
(Z)-2-iodocrotonaldehyde
Conditions | Yield |
---|---|
With dmap; iodine; potassium carbonate In tetrahydrofuran for 2.5h; | 99% |
With dmap; iodine; potassium carbonate In tetrahydrofuran; water at 20℃; for 3h; | |
With dmap; iodine; potassium carbonate In tetrahydrofuran; water at 20℃; for 2h; Inert atmosphere; | |
With dmap; iodine; potassium carbonate In tetrahydrofuran; water at 20℃; for 2h; |
trans-Crotonaldehyde
phosphoric acid tributyl ester
benzenesulfonyl cyanide
2-(phenylsulfonyl)pyridine
Conditions | Yield |
---|---|
In toluene; butan-1-ol | 99% |
trans-Crotonaldehyde
boric acid tributyl ester
benzenesulfonyl cyanide
2-(phenylsulfonyl)pyridine
Conditions | Yield |
---|---|
In di-isopropyl ether; butan-1-ol | 99% |
In toluene; butan-1-ol | 99% |
In toluene | 98% |
trans-Crotonaldehyde
1,5-dimethyl-7-chloro-2-(4-pentenyl)-1H-indole
2-(8-chloro-6,9-dimethyl-2,3,4,9-tetrahydro-1H-carbazol-4-yl)acetaldehyde
Conditions | Yield |
---|---|
[1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(O-isopropoxyphenylmethylene)ruthenium In 1,2-dichloro-ethane for 0.666667h; Heating; | 99% |
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane for 15h; Inert atmosphere; Reflux; | 99% |
trans-Crotonaldehyde
N-benzoylimino-3,4-dihydro-6-methylisoquinolinium betaine
Conditions | Yield |
---|---|
With titanium(IV) isopropylate; (S)-[1,1']-binaphthalenyl-2,2'-diol In toluene at 0℃; for 2h; Inert atmosphere; optical yield given as %ee; enantioselective reaction; | 99% |
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