Product Name Trans-1, 4-Dibromo-2-Butene CAS No 821-06-7 Formula C4H6Br2 - Structural Formula
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inquiryProduct Description Product website: http://www.finerchem.com Product Name trans-1,4-Dibromo-2-butene CAS No. 821-06-7
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Used as an intermediate in organic synthesis. Appearance:White crystal solid Storage:Stored in the ventilated, low temperature and dry room away from direct sunlight. Package:25kg/drum Application:Used as an intermediate in organic synthesis. Port
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inquiryName trans-1,4-dibromo-2-butene Synonyms (e)-1,4-dibromobut-2-ene; 1,4-dibromo-2-butene; (E)-1,4-Dibromo-2-butene; 1,4-dibromo-, trans-; Dibromobutene; trans-1,4-Dibromobut-2-ene; 1,4-trans-Dibromobu
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inquiry(E)-1,4-Dibromobut-2-ene CAS:821-06-7 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 in
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inquiryHenan 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
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A 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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inquiryAppearance/Colour:white to light yellow crystal powder Melting Point:48-51 °C(lit.) Refractive Index:1.5361 (estimate) Boiling Point:203 °C at 760 mmHg Flash Point:71.9 °C PSA:0.00000 Density:1.867 g/cm3 LogP:2.33240 Sto
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inquiry821-06-7 trans-1,4-dibromobut-2-ene Appearance:Crystals or Crystalline Powder Storage:2-8°C Package:according to customers' requirements Application:It is used as an intermediate in organic synthesis. Transportation:By air(EMS or EUB or FedEx or TNT
Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
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inquiryProduct name: (E)-1,4-Dibromo-2-Butene CAS No.:821-06-7 Molecule Formula:C4H6Br2 Molecule Weight:213.90 Purity: 97.0% Package: 25kg/drum Description:White to brownish powder Manufacture Standards:Enterprise Standard
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inquiryConditions | Yield |
---|---|
With bromine In chloroform at -78 - 23℃; | 100% |
With bromine In tetrachloromethane at -78 - 20℃; for 16h; | 58% |
With bromine In tetrachloromethane at -78 - 20℃; for 16h; | 58% |
allyl bromide
A
cis-1,4-dibromo-2-butene
B
(E)-1,4-dibromobutene
C
ethene
Conditions | Yield |
---|---|
With Hoveyda-Grubbs catalyst second generation In acetone at 25℃; for 1h; Grubbs Olefin Metathesis; Flow reactor; Overall yield = > 95 %; | A n/a B 95% C n/a |
Conditions | Yield |
---|---|
With phosphorus tribromide | 65% |
s-butyl bromide
A
(E/Z)-crotyl bromide
B
2,3-dibromobutane
C
(E)-1,4-dibromobutene
D
2,2-dibromobutane
Conditions | Yield |
---|---|
With hydrogen bromide; bromine at 100℃; under 80 Torr; for 0.25h; Heating; Irradiation; Further byproducts given; | A 8.5% B 6.3% C 39.7% D 22.5% |
With bromine at 100℃; under 80 Torr; for 0.25h; Heating; Irradiation; Further byproducts given; | A 20.3% B 3.9% C 31% D 34.6% |
s-butyl bromide
A
(E/Z)-crotyl bromide
B
(E)-1,4-dibromobutene
C
2,2-dibromobutane
D
1,3-dibromobutane
Conditions | Yield |
---|---|
With hydrogen bromide; bromine at 100℃; under 80 Torr; for 0.25h; Heating; Irradiation; Further byproducts given; | A 14.6% B 39.1% C 21.6% D 2.5% |
pyridine perbromide
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
C
N-(4-bromo-1-buten-3-yl)pyridinium bromide
Conditions | Yield |
---|---|
In 1,2-dichloro-ethane at 20℃; for 0.5h; Yields of byproduct given; | A n/a B n/a C 35% |
s-butyl bromide
A
2,3-dibromobutane
B
(E)-1,4-dibromobutene
C
2,2-dibromobutane
D
1,2,3,4-tetrabromobutane
Conditions | Yield |
---|---|
With bromine at 100℃; under 80 Torr; for 0.25h; Heating; Irradiation; Further byproducts given; | A 10.2% B 24% C 24% D 9% |
s-butyl bromide
A
2,3-dibromobutane
B
(E)-1,4-dibromobutene
C
2,2-dibromobutane
D
1,2,3-tribromobutane
Conditions | Yield |
---|---|
With hydrogen bromide; bromine at 100℃; under 80 Torr; for 0.25h; Heating; Irradiation; Further byproducts given; | A 13.7% B 19.2% C 23.8% D 12.5% |
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane for 0.183333h; Inert atmosphere; | 15% |
Conditions | Yield |
---|---|
at 61 - 100℃; Kinetics; | |
at 61 - 100℃; Mechanism; |
cis-1,4-dibromo-2-butene
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
in der Waerme; | |
at 120℃; |
3,4-dibromo-1-butene
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
at 85 - 90℃; |
Conditions | Yield |
---|---|
With bromine liquid 1,4-dibromo-butene-(2); | |
With chloroform; bromine |
Conditions | Yield |
---|---|
With bromine In 1,2-dichloro-ethane at 25℃; for 0.333333h; Mechanism; Product distribution; Rate constant; other solvent and other brominating agent; | |
With hexane; bromine at -30 - -15℃; |
1,4-butenediol
A
cis-1,4-dibromo-2-butene
B
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
With phosphorus tribromide In tetrachloromethane |
pyridine
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
C
N-(4-bromo-1-buten-3-yl)pyridinium bromide
Conditions | Yield |
---|---|
With bromine In 1,2-dichloro-ethane at 25℃; for 0.5h; Mechanism; Product distribution; Rate constant; other solvent, other brominating agent; |
Conditions | Yield |
---|---|
in der Gasphase bei Verduennung mit Stickstoff; |
Conditions | Yield |
---|---|
at -30 - -15℃; |
carbon disulfide
bromine
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
Conditions | Yield |
---|---|
das Mengenverhaeltnis der Reaktionsprodukte ist vom Loesungsmittel unabhaengig; |
tetrachloromethane
bromine
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
Conditions | Yield |
---|---|
das Mengenverhaeltnis der Reaktionsprodukte ist vom Loesungsmittel unabhaengig; |
hexane
bromine
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
Conditions | Yield |
---|---|
das Mengenverhaeltnis der Reaktionsprodukte ist vom Loesungsmittel unabhaengig; |
chloroform
bromine
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
Conditions | Yield |
---|---|
das Mengenverhaeltnis der Reaktionsprodukte ist vom Loesungsmittel unabhaengig; |
Trichloroethylene
bromine
buta-1,3-diene
A
(E)-1,4-dibromobutene
B
3,4-dibromo-1-butene
Conditions | Yield |
---|---|
das Mengenverhaeltnis der Reaktionsprodukte ist vom Loesungsmittel unabhaengig; |
cis-butene-1,4-diol
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
With pyridine; phosphorus tribromide; iodine In (2S)-N-methyl-1-phenylpropan-2-amine hydrate; dichloromethane |
Conditions | Yield |
---|---|
With Hoveyda-Grubbs catalyst second generation In dichloromethane Inert atmosphere; Overall yield = 15 percent; Overall yield = 1.7 g; | A n/a B n/a |
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 100% |
3-hydroxypyridine-2-thione
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
In acetone at 20℃; for 20h; | 100% |
(E)-1,4-dibromobutene
(S)-3-((2-hydroxynaphthalen-1-yl)methyleneamino)-4-isopropyl-2-oxazolidinone
(S)-3-(((2-(E)-4-bromobut-2-enyloxy)naphthalen-1-yl)methyleneamino)-4-isopropyl-2-oxazolidinone
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; for 10h; Inert atmosphere; | 100% |
(E)-1,4-dibromobutene
(R)-3-((2-hydroxynaphthalen-1-yl)methyleneamino)-4-isopropyl-2-oxazolidinone
(R)-3-(((2-(E)-4-bromobut-2-enyloxy)naphthalen-1-yl)methyleneamino)-4-isopropyl-2-oxazolidinone
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; for 10h; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
In acetone at 20℃; | 100% |
(E)-1,4-dibromobutene
acetylacetone
1-(2-methyl-5-vinyl-4,5-dihydrofuran-3-yl)ethan-1-one
Conditions | Yield |
---|---|
Stage #1: acetylacetone With caesium carbonate In dimethyl sulfoxide at 20℃; for 0.333333h; Claisen Rearrangement; Inert atmosphere; Stage #2: (E)-1,4-dibromobutene In dimethyl sulfoxide at 100℃; for 12h; Inert atmosphere; | 100% |
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide for 48h; Heating; | 100% |
(E)-1,4-dibromobutene
diethyllaurylamine
C36H76N2(2+)*2Br(1-)
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 99% |
(E)-1,4-dibromobutene
N-(tert-butyloxycarbonyl)(2,4,6-triisopropylphenyl)sulfonamide
(E)-N,N'-bis(tert-butyloxycarbonyl)-N,N'-bis[(2,4,6-triisopropylphenyl)sulfonyl]-2-butene-1,4-diamine
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile Heating; | 99% |
(E)-1,4-dibromobutene
triethyl phosphite
tetraethyl (E)-2-butene-1,4-diphosphonate
Conditions | Yield |
---|---|
for 5h; Reflux; | 99% |
for 5h; Reflux; | 99% |
Arbuzov reaction; |
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 70℃; | 99% |
In N,N-dimethyl-formamide at 70℃; | 66% |
(E)-1,4-dibromobutene
N,N-dimethylhexadecylamine
C40H84N2(2+)*2Br(1-)
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 98% |
(E)-1,4-dibromobutene
trans-6-(4-methylphenylsulfonyl)amino-4-methyl-1-triisopropyl-silyl(oxy)-cyclohex-1-ene
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran for 1h; Heating; | 98% |
Conditions | Yield |
---|---|
In chloroform for 3h; Inert atmosphere; Reflux; | 98% |
In acetone for 1.5h; Heating; | 95% |
In acetone for 2h; Heating; | 95% |
In acetone for 2h; Reflux; | 95% |
Conditions | Yield |
---|---|
In acetonitrile for 6.5h; Reflux; | 98% |
In acetonitrile for 6.5h; Reflux; | 98% |
(E)-1,4-dibromobutene
C74H130N2O12S2
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile | 98% |
(E)-1,4-dibromobutene
4-cyanophenol
(E)-4,4'-(but-2-ene-1,4-diylbis(oxy))dibenzonitrile
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile Reflux; | 97% |
With sodium ethanolate |
(E)-1,4-dibromobutene
Di-n-butyl-hexadecylamin
C52H108N2(2+)*2Br(1-)
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 97% |
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 100℃; for 2h; | 97% |
Conditions | Yield |
---|---|
With sodium hydroxide In isopropyl alcohol at 80℃; for 24h; | 96.1% |
(E)-1,4-dibromobutene
2-phenylthiocyclohexanone
Conditions | Yield |
---|---|
With potassium hydride In tetrahydrofuran Ambient temperature; | 96% |
(E)-1,4-dibromobutene
(E)-N,N'-bis(tert-butyloxycarbonyl)-N,N'-bis[(2-thienyl)sulfonyl]-2-butene-1,4-diamine
Conditions | Yield |
---|---|
With potassium carbonate | 96% |
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 100℃; for 4h; | 96% |
In N,N-dimethyl-formamide at 70℃; | 95% |
In N,N-dimethyl-formamide at 100℃; for 1.5h; | 93% |
Conditions | Yield |
---|---|
In acetonitrile for 3h; Inert atmosphere; Reflux; | 96% |
In acetone for 2h; Heating; | 93% |
In acetone for 2h; Reflux; | 93% |
(E)-1,4-dibromobutene
Conditions | Yield |
---|---|
With sodium sulfite In water; N,N-dimethyl-formamide at 100℃; for 11h; | 96% |
With sodium sulfite In water at 105 - 115℃; |
N,N-dimethyloctanamide
(E)-1,4-dibromobutene
C24H52N2(2+)*2Br(1-)
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 95% |
N,N-dimethylaminododecane
(E)-1,4-dibromobutene
trans-1,4-bis(dodecyldimethylammonio)-2-butylene dibromide
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 95% |
(E)-1,4-dibromobutene
octyldibutylamine
C36H76N2(2+)*2Br(1-)
Conditions | Yield |
---|---|
In acetonitrile for 0.5h; Heating; | 95% |
(E)-1,4-dibromobutene
trans-2,3-di(bromomethyl)oxirane
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In chloroform for 20h; Heating; | 95% |
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