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Basic Information
| CAS No.: | 764-01-2 |
|---|---|
| Name: | 2-Butyn-1-ol |
| Molecular Structure: | |
|
|
|
| Formula: | C4H6O |
| Molecular Weight: | 70.091 |
| Synonyms: | 1-Hydroxybut-2-yne;2-Butynol;NSC 222371;2-Butynyl alcohol; |
| EINECS: | 212-113-4 |
| Density: | 0.929 g/cm3 |
| Melting Point: | - 2.2 °C(lit.) |
| Boiling Point: | 148 °C at 760 mmHg |
| Flash Point: | 51.7 °C |
| Appearance: | clear colourless to light yellow liquid |
| Hazard Symbols: |
 Xi, F
|
| Risk Codes: | 10-43-52/53-36/37/38 |
| Safety: | 36/37-26-16 |
| Transport Information: | UN 1987 3/PG 3 |
| PSA: | 20.23000 |
| LogP: | 0.00200 |
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Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| With lithium; ferric nitrate In ammonia at -50℃; for 2h; | 95% |
| With lithium amide In ammonia | 78% |
| Multistep reaction; | |
| Stage #1: methyl iodide With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine at 25℃; for 0.166667h; Inert atmosphere; Stage #2: propargyl alcohol at 25℃; for 10h; Inert atmosphere; |
- 39637-48-4
2-(but-2-ynyloxy)-tetrahydro-2H-pyran
- 764-01-2
methyl propargyl alcohol
Conditions
| Conditions | Yield |
|---|---|
| With toluene-4-sulfonic acid In methanol | 95% |
| With toluene-4-sulfonic acid In methanol | 59% |
- 37428-46-9, 37428-53-8, 40605-42-3
3-chloro-2-buten-1-ol
- 764-01-2
methyl propargyl alcohol
Conditions
| Conditions | Yield |
|---|---|
| With sodium hydroxide In cyclohexane; water at 65 - 72℃; for 8h; | 88.1% |
| With potassium hydroxide; tetra-(n-butyl)ammonium iodide In hexane for 12h; Heating; | 50% |
| With ammonia; sodium; ferric nitrate for 14h; | 47% |
| With ammonia; sodium amide Behandeln des Reaktions-Loesung mit NH4Cl; | |
| With ammonia; sodium amide |
Conditions
| Conditions | Yield |
|---|---|
| 85% |
- 97231-46-4
1-(methoxymethoxy)but-2-yne
- 764-01-2
methyl propargyl alcohol
Conditions
| Conditions | Yield |
|---|---|
| With bismuth(III) chloride; water In acetonitrile at 50℃; for 3h; | 85% |
- 83591-03-1
(but-2-yn-1-yloxy)(tert-butyl)dimethylsilane
- 764-01-2
methyl propargyl alcohol
Conditions
| Conditions | Yield |
|---|---|
| With P(MeNCH2CH2)3N In dimethyl sulfoxide at 80℃; for 36h; desilylation; | 83% |
- 50-00-0
formaldehyd
- 463-49-0
1,2-propanediene
- 5389-87-7
1-chloro-3,7-dimethylocta-2,6-diene
A
- 764-01-2
methyl propargyl alcohol
B
- 16933-56-5
(6E)-7,11-dimethyldodeca-6,10-dien-2-yn-1-ol
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 1,2-propanediene With n-butyllithium In diethyl ether; hexane at -78 - -15℃; for 1.75h; Inert atmosphere; Stage #2: 1-chloro-3,7-dimethylocta-2,6-diene In diethyl ether; hexane at -15℃; for 5.05h; Inert atmosphere; Stage #3: formaldehyd Further stages; | A n/a B 68% |
...Expand
Conditions
| Conditions | Yield |
|---|---|
| With diethyl ether |
- 37428-46-9
(Z)-3-chloro-2-but-en-1-ol
- 764-01-2
methyl propargyl alcohol
Conditions
| Conditions | Yield |
|---|---|
| With potassium hydroxide | |
| With potassium hydroxide | |
| With sodium hydroxide |
Conditions
| Conditions | Yield |
|---|---|
| With ammonia; sodium amide |
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2-Butyn-1-ol
Chemistry
The Molecular formula of 2-BUTYN-1-OL(764-01-2): C4H6O
The Molecular Weight of 2-BUTYN-1-OL(764-01-2):70.09
The Molecular Structure of 2-BUTYN-1-OL(764-01-2):
EINECS: 212-113-4
Melting point: -2.2 °C(lit.)
Boiling Point: 148 °C at 760 mmHg
Flash Point: 51.7 °C
Index of Refraction: 1.446
Molar Refractivity: 20.12 cm3
Molar Volume: 75.3 cm3
Polarizability: 7.97 10-24 cm3
Surface Tension: 37.2 dyne/cm
Density: 0.929 g/cm3
Enthalpy of Vaporization: 44.84 kJ/mol
Vapour Pressure: 1.67 mmHg at 25°C
storage temp.: Refrigerator
Stability: Stable. Flammable.
Appearance: liquid
BRN: 1733676
IUPAC Name: but-2-yn-1-ol
Synonyms: 2-butyn-1-0l;2-Butynol;HYDROXYMETHYLMETHYLACETYLENE;CH3CequivCCH2OH;BUT-2-IN-1-OL;2-BUTYNE-1-OL;2-Butynyl alcohol;But-2-yn-1-ol;
The Molecular Weight of 2-BUTYN-1-OL(764-01-2):70.09
The Molecular Structure of 2-BUTYN-1-OL(764-01-2):
EINECS: 212-113-4
Melting point: -2.2 °C(lit.)
Boiling Point: 148 °C at 760 mmHg
Flash Point: 51.7 °C
Index of Refraction: 1.446
Molar Refractivity: 20.12 cm3
Molar Volume: 75.3 cm3
Polarizability: 7.97 10-24 cm3
Surface Tension: 37.2 dyne/cm
Density: 0.929 g/cm3
Enthalpy of Vaporization: 44.84 kJ/mol
Vapour Pressure: 1.67 mmHg at 25°C
storage temp.: Refrigerator
Stability: Stable. Flammable.
Appearance: liquid
BRN: 1733676
IUPAC Name: but-2-yn-1-ol
Synonyms: 2-butyn-1-0l;2-Butynol;HYDROXYMETHYLMETHYLACETYLENE;CH3CequivCCH2OH;BUT-2-IN-1-OL;2-BUTYNE-1-OL;2-Butynyl alcohol;But-2-yn-1-ol;
Safety Profile
The Hazard Codes of 2-BUTYN-1-OL(764-01-2): 
Xi, 
F
Hazard Note: Irritant
HazardClass: 3
The Risk Statements information of 2-BUTYN-1-OL(764-01-2):
10: Flammable
43: May cause sensitization by skin contact
36/37/38: Irritating to eyes, respiratory system and skin
52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment
The Safety Statements information of 2-BUTYN-1-OL(764-01-2):
16: Keep away from sources of ignition - No smoking
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37: Wear suitable protective clothing and gloves
RIDADR: UN 1987 3/PG 3
WGK Germany: 3
PackingGroup: III
HS Code: 29052990
Xi, F Hazard Note: Irritant
HazardClass: 3
The Risk Statements information of 2-BUTYN-1-OL(764-01-2):
10: Flammable
43: May cause sensitization by skin contact
36/37/38: Irritating to eyes, respiratory system and skin
52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment
The Safety Statements information of 2-BUTYN-1-OL(764-01-2):
16: Keep away from sources of ignition - No smoking
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37: Wear suitable protective clothing and gloves
RIDADR: UN 1987 3/PG 3
WGK Germany: 3
PackingGroup: III
HS Code: 29052990