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CasNo： 1119-51-3
Molecular Formula： C5H9Br
Appearance： clear colourles to yellow liquid
Quality products make an important contribution to long-term revenue and profitability. Top Quality 5-Bromo-1-pentene 1119-51-3 Hot Sell In Stock
5-Bromo-1-pentene is widely utilized in the stereoselective synthesis of 7alpha-(3-carboxypropyl) estradiol. It plays an important role as starting material in the synthesis of a variety of compounds including DL-histrionicotoxin and benzophenone containing fatty acids.
1,5-dibromo-pentane
bromopentene
| Conditions | Yield |
|---|---|
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
In
N,N-dimethyl-formamide;
at 140 ℃;
for 4h;
Time;
Temperature;
Reagent/catalyst;
Large scale;
|
80.1% |
|
With
potassium tert-butylate;
In
tetrahydrofuran; toluene;
at 0 ℃;
for 0.5h;
|
69% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 195 - 220 ℃;
|
60% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 195 - 230 ℃;
|
59% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 220 ℃;
for 0.0833333h;
|
57% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 180 ℃;
|
54% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 195 - 200 ℃;
|
47% |
|
With
18-crown-6 ether; potassium hydroxide;
at 200 ℃;
for 7h;
under 270.027 Torr;
|
47% |
|
In
N,N,N,N,N,N-hexamethylphosphoric triamide;
195 deg C then 220 deg C;
|
46% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 205 ℃;
for 0.0833333h;
|
44% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 195 - 220 ℃;
for 0.0833333h;
|
42% |
|
With
18-crown-6 ether; potassium tert-butylate;
In
diethyl ether;
for 1h;
|
37% |
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
at 195 ℃;
|
|
|
With
N,N,N,N,N,N-hexamethylphosphoric triamide;
Heating;
|
|
|
With
18-crown-6 ether; potassium tert-butylate;
In
diethyl ether;
|
n-Pent-4-enyl alcohol
bromopentene
| Conditions | Yield |
|---|---|
|
With
carbon tetrabromide; triphenylphosphine;
In
dichloromethane;
at 0 - 20 ℃;
for 2.5h;
|
80% |
|
With
pyridine; bromine; triphenylphosphine;
In
benzene;
|
73% |
|
With
pyridine; phosphorus tribromide;
1.) -5 deg C, 30 min, 2.) RT, 2 h;
|
60% |
|
n-Pent-4-enyl alcohol;
With
phosphorus tribromide;
In
diethyl ether;
at -30 - 20 ℃;
for 16.5h;
With
sodium bromide;
In
diethyl ether;
for 21h;
|
60% |
|
With
phosphorus tribromide;
In
n-heptane;
at -10 ℃;
for 2h;
|
55% |
|
With
phosphorus tribromide;
In
Petroleum ether;
at -20 ℃;
|
46% |
|
With
pyridine; phosphorus tribromide;
at -30 - -25 ℃;
weniger gut bei Kuehlung mit Eis;
|
|
|
With
pyridine; phosphorus tribromide;
|
|
|
|
|
|
With
phosphorus tribromide;
|
|
|
With
pyridine; phosphorus tribromide;
at -5 ℃;
for 0.25h;
|
|
|
With
pyridine; phosphorus tribromide;
at -30 - -25 ℃;
for 1.16667h;
|
|
|
With
pyridine; phosphorus tribromide;
In
diethyl ether;
|
|
|
With
pyridine; triphenylphosphine dibromide 1:1 addition complex;
In
dichloromethane;
|
|
|
With
bromine; triphenylphosphine;
Yield given;
1.) CH2Cl2, 15 min., 2.) pyridine, ambient. temp., 1 h;
|
|
|
With
pyridine; phosphorus tribromide;
In
Petroleum ether;
at 0 ℃;
for 1h;
|
|
|
With
pyridine; phosphorus tribromide;
|
|
|
With
N-Bromosuccinimide; triphenylphosphine;
In
N,N-dimethyl-formamide;
at 20 ℃;
|
|
|
Multi-step reaction with 2 steps
1: KOH / diethyl ether / 2 h / 10 - 15 °C
2: LiBr / acetone / 1 h / Heating
With
potassium hydroxide; lithium bromide;
In
diethyl ether; acetone;
|
|
|
With
phosphorus tribromide;
In
diethyl ether;
at -15 - 20 ℃;
for 1.5h;
Reflux;
Inert atmosphere;
Schlenk technique;
|
|
|
With
carbon tetrabromide; triphenylphosphine;
In
dichloromethane;
|
The CAS number of 5-Bromo-1-pentene is 1119-51-3.
More information of 5-Bromo-1-pentene 1119-51-3 are:
|
CAS Number |
1119-51-3 |
|
Density |
1.248 g/cm3 |
|
Melting Point |
-106.7°C (estimate) |
|
Boiling Point |
126.2 °C at 760 mmHg |
|
Flash Point |
31 °C |
|
Vapor Pressure |
14.3mmHg at 25°C |
|
Refractive Index |
n20/D 1.463(lit.) |
|
HS CODE |
29033036 |
|
PSA |
0.00000 |
|
LogP |
2.34750 |
Synonyms for 5-Bromo-1-pentene 1119-51-3:1-Bromo-4-pentene;4-Pentenyl bromide;1-Pentene, 5-bromo-;
The chemical formula of 5-Bromo-1-pentene is C5H9Br which containing 5 Carbon atoms,9 Hydrogen atoms and 1 Bromine atoms,and the molecular weight of 5-Bromo-1-pentene is 149.03.
5-Bromo-1-pentene is an organic compound characterized by a clear colorless to yellow liquid appearance. It is a brominated alkene, which means it contains a bromine atom and a carbon-carbon double bond in its molecular structure. 5-Bromo-1-pentene is known for its significance in various chemical reactions and syntheses.
InChI:InChI=1/C5H9Br/c1-2-3-4-5-6/h2H,1,3-5H2
Relevant articles related to 5-Bromo-1-pentene:
|
Article |
Source |
|
Cobalt-Mediated η5-Pentadienyl/Alkyne [5 + 2] Cycloaddition Reactions: Substitution Effects, Bicyclic Synthesis, and Photochemical η4-Cycloheptadiene Demetalation |
Ylijoki, Kai E. O.,Kirk, Andrew D.,B?cklein, Sebastian,Witherell, Ross D.,Stryker, Jeffrey M. , p. 3335 - 3357 (2015) |
|
Phospho-Cope Rearrangement of Sodium Allylvinylphosphinate |
Loewus, David I. , p. 2292 - 2296 (1981) |
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