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inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
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inquiry1-BROMO-1-BUTENE CAS:31849-78-2 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 intermed
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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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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
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inquiryProduct Name: 1-BROMO-1-BUTENE CAS: 31849-78-2 MF: C4H7Br MW: 135 EINECS: Product Categories: Mol File: 31849-78-2.mol 1-BROMO-1-BUTENE Structure 1-BROMO-1-BUTENE Chemical Properties Melting point -115.07°C (estimate)
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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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
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inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
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inquiryPrice, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right
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inquiry1.We are production factory which can provide commercial production of direct. 2. We could offer you competitive prices with satisfied quality. 3. We will choose the safest shipping methods to your addresses. 4. Our company provides after sal
1-Butene,?1-bromo-,(1Z)-?(9CI)Appearance:per specification 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
High Quality Best Price Storage:Store in dry, dark and ventilated place Application:Chemical Synthesis Intermediate
(2R*,3S*)-2,3-dibromopentanoic acid
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 70℃; under 97.5098 Torr; for 1h; optical yield given as %de; | 87% |
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 70℃; under 100 Torr; | 61% |
With triethylamine In N,N-dimethyl-formamide for 0.0166667h; microwave irradiation; | 899 mg |
trans-2-pentenoic acid
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
Stage #1: trans-2-pentenoic acid With bromine Stage #2: With sodium carbonate In N,N-dimethyl-formamide Further stages.; | 54% |
With bromine; sodium carbonate 1.) -78 deg C, 2.) DMF, 60 deg C; Yield given. Multistep reaction; |
acide dibromo-2,3 pentanoique
A
(Z)-1-bromo-1-butene
B
Z-1-bromobutene
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 5℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
In diethyl ether at -10℃; |
(Z)-1-bromo-1-butene
11-dodecynal diethyl acetal
(Z)-1,1-diethoxyhexadec-13-en-11-yne
Conditions | Yield |
---|---|
With propylamine; copper(l) iodide; tetrakis(triphenylphosphine) palladium(0) In benzene at 20 - 40℃; Sonogashira-Hagihara coupling; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; toluene at 90℃; | 99% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium hydroxide In tetrahydrofuran; water at 70℃; | 92% |
(Z)-1-bromo-1-butene
trans-2-phenylvinylboronic acid
(1E,3Z)-1-phenylhexa-1,3-diene
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium hydroxide In tetrahydrofuran; water at 70℃; | 92% |
(Z)-1-bromo-1-butene
(+)-(2R,2'S,5S)-2-allyl-5-[2'-(benzyloxy)heptyl]-N-(4-methoxybenzyl)pyrrolidine-1-carboxamide
(+)-(Z,2'S,3R,4aR,7S)-7-[2'-(benzyloxy)heptyl]-2-(4-methoxybenzyl)-3-(pent-2-en-1-yl)hexahydropyrrolo[1,2-c]pyrimidin-1(2H)-one
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); tricyclohexylphosphine tetrafluoroborate; sodium t-butanolate In toluene at 110℃; for 14h; Inert atmosphere; optical yield given as %de; | 91% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); (11aR)-(+)-10,11,12,13-tetrahydrodiindeno-[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-bis[(R)-1-phenylethyl]amine; sodium t-butanolate In 5,5-dimethyl-1,3-cyclohexadiene at 125℃; enantioselective reaction; | 91% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium hydroxide In tetrahydrofuran; water at 70℃; | 89% |
Conditions | Yield |
---|---|
Stage #1: (Z)-1-bromo-1-butene With lithium In diethyl ether at -50 - -40℃; for 1.33333h; Inert atmosphere; Stage #2: C11H15NO2 In diethyl ether at 0℃; for 1h; Inert atmosphere; | 83% |
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
Stage #1: (2S,5R)-2,5-diallyl-N-(4-chlorophenyl)pyrrolidine-1-carboxamide With tris-(dibenzylideneacetone)dipalladium(0); (11aR)-(+)-10,11,12,13-tetrahydrodiindeno-[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-bis[(R)-1-phenylethyl]amine; sodium t-butanolate In toluene at 20℃; for 0.0333333h; Inert atmosphere; Stage #2: (Z)-1-bromo-1-butene In toluene at 100℃; for 2h; Inert atmosphere; stereoselective reaction; | 80% |
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
Stage #1: 1-ethyl-2,3-bis(4-methoxyphenyl)-1-(2-methylallyl)guanidine hydrochloride With tris-(dibenzylideneacetone)dipalladium(0); sodium t-butanolate; nixantphos In toluene at 20℃; for 0.0333333h; Inert atmosphere; Stage #2: (Z)-1-bromo-1-butene In toluene at 20 - 107℃; for 16h; | 80% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); (11aR)-(+)-10,11,12,13-tetrahydrodiindeno-[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-bis[(R)-1-phenylethyl]amine; sodium t-butanolate In toluene at 110℃; enantioselective reaction; | 74% |
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
Stage #1: (E,2R,5S)-2-allyl-N-(4-chlorophenyl)-5-[3-(trimethylsilyl)allyl]pyrrolidine-1-carboxamide With tris-(dibenzylideneacetone)dipalladium(0); tricyclohexylphosphine tetrafluoroborate; sodium t-butanolate In toluene at 20℃; for 0.0333333h; Inert atmosphere; Stage #2: (Z)-1-bromo-1-butene In toluene at 100℃; for 1h; Inert atmosphere; | 71% |
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); tricyclohexylphosphine tetrafluoroborate; sodium t-butanolate In toluene at 110℃; Inert atmosphere; Schlenk technique; diastereoselective reaction; | 67% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium hydroxide In tetrahydrofuran; water at 70℃; | 65% |
(Z)-1-bromo-1-butene
(±)-2-allyl-N-(4-methoxyphenyl)pyrrolidine-1-carboxamide
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); tricyclohexylphosphine tetrafluoroborate; sodium t-butanolate In toluene at 110℃; Inert atmosphere; Schlenk technique; diastereoselective reaction; | 58% |
(Z)-1-bromo-1-butene
3-Hydroxyacetophenone
1-{3-[(Z)-but-1-en-1-yloxy]phenyl}ethanone
Conditions | Yield |
---|---|
With caesium carbonate; acetylacetone; copper(l) chloride In tetrahydrofuran at 75℃; for 23h; | 55% |
piperidine
(Z)-1-bromo-1-butene
(2E)-2,4-Pentadienal-dimethylacetal
A
(2E,4E,6E)-nonatrienal dimethyl acetal
C
(2E,6Z)-4-piperidino-2,6-nonadienal dimethyl acetal
Conditions | Yield |
---|---|
palladium diacetate; tris-(o-tolyl)phosphine at 100℃; for 12h; | A 45% B 13% C 27% |
(Z)-1-bromo-1-butene
(2R,3S,3aS,4R,7S,7aS)-3-(8-((tert-butyldimethylsilyl)oxy)octyl)-2-((Z)-pent-2-en-1-yl)-2,3,3a,4,7,7a-hexahydro-1H-4,7-methanoinden-1-one
Conditions | Yield |
---|---|
Stage #1: (Z)-1-bromo-1-butene With n-butyllithium In tetrahydrofuran; pentane at -78℃; for 0.75h; Schlenk technique; Inert atmosphere; Stage #2: C25H42O2Si With 2-thienyl lithium cyanocuprate In tetrahydrofuran; pentane at -78℃; Schlenk technique; Inert atmosphere; enantioselective reaction; | 34% |
(Z)-1-bromo-1-butene
Conditions | Yield |
---|---|
Stage #1: (2S,5R)-2,5-diallyl-N-(4-nitrophenyl)pyrrolidine-1-carboxamide With tris-(dibenzylideneacetone)dipalladium(0); (11aR)-(+)-10,11,12,13-tetrahydrodiindeno-[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-bis[(R)-1-phenylethyl]amine; sodium t-butanolate In toluene at 20℃; for 0.0333333h; Inert atmosphere; Stage #2: (Z)-1-bromo-1-butene In toluene at 100℃; for 2h; Inert atmosphere; stereoselective reaction; | 24% |
4-(diethylamino)-3-butene-2-one
(Z)-1-bromo-1-butene
(3E,5Z)-octa-3,5-dien-2-one
Conditions | Yield |
---|---|
(i) Li, Et2O, (ii) /BRN= 1703055/; Multistep reaction; |
N-(1,4-pentadienyl)piperidine
(Z)-1-bromo-1-butene
nona-2t,6ξ-dienal
Conditions | Yield |
---|---|
With piperidine; palladium diacetate; oxalic acid; tris-(o-tolyl)phosphine 1.) 100 deg C, 2 h, 2.) ether, H2O, RT, 1 h; Yield given. Multistep reaction; |
N-(1,3-pentadienyl)piperidine
(Z)-1-bromo-1-butene
nona-2t,6ξ-dienal
Conditions | Yield |
---|---|
With piperidine; palladium diacetate; oxalic acid; tris-(o-tolyl)phosphine 1.) 100 deg C, 18 h, 2.) ether, H2O, RT, 1 h; Yield given. Multistep reaction; |
(Z)-1-bromo-1-butene
(2S,3S,5Z)-1-iodo-2,3-epoxy-5-pentadecene
(3Z,9Z,6R,7S)-6,7-epoxy-3,9-nonadecadiene
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide; copper(l) iodide; magnesium 1) THF, rt, 2) THF, 30 min, -23 deg C; Yield given. Multistep reaction; |
(Z)-1-bromo-1-butene
(2R,3R,5Z)-1-iodo-2,3-epoxy-5-pentadecene
(3Z,9Z,6S,7R)-6,7-epoxy-3,9-nonadecadiene
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide; copper(l) iodide; magnesium 1) THF, rt, 2) THF, 30 min, -23 deg C; Yield given. Multistep reaction; |
(Z)-1-bromo-1-butene
1-methylallyl cation
Conditions | Yield |
---|---|
Mechanism; dissociative ionization, ion kinetic energy spectroscopy; further bromobutenes; |
(Z)-1-bromo-1-butene
trimethylsilylacetylene
(E)-1-trimethylsilyl-3-hexen-1-yne
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; diisobutylaluminium hydride; copper(l) iodide In tetrahydrofuran Heating; |
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