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2-Ethynylfuran
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Name

2-Ethynylfuran

 EINECS N/A
CAS No. 18649-64-4 Density 1.03 g/cm3
PSA 13.14000 LogP 1.26090
Solubility N/A Melting Point N/A
Formula C6H4O Boiling Point 106.32 °C at 760 mmHg
Molecular Weight 92.0972 Flash Point 12.171 °C
Transport Information N/A Appearance N/A
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 18649-64-4 (3-ETHYNYL-2-HYDROXY-PHENOL) Hazard Symbols N/A
Synonyms

3-ETHYNYL-2-HYDROXY-PHENOL;3-ETHYNYL-BENZENE-1,2,DIOL;Furan, 2-ethynyl-;2-Ethynylfur

Article Data 17

2-Ethynylfuran Synthetic route

40231-01-4

(furan-2-ylethynyl)-trimethylsilane

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With potassium carbonate In methanol at 20℃; for 18h; Cooling with ice; Inert atmosphere;98.9%
With potassium carbonate In methanol at 20℃; for 18h; Inert atmosphere;
100074-10-0

2,2-dibromovinyl-2-furan

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
Stage #1: 2,2-dibromovinyl-2-furan With methyllithium In diethyl ether at -78 - 20℃;
Stage #2: With water; ammonium chloride In diethyl ether		47%
With methyllithium; hydrogen cation 1.) ether, a.) -78 deg C, 1 h; b.) up to RT; c.) RT, 1 h; 2.) ether; Yield given. Multistep reaction;
With n-butyllithium In hexane at -78 - 20℃; for 5h;
26480-96-6

α-(2-furoyl)-α-(ethoxycarbonyl)methylenetriphenylphosphorane

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
at 750℃; under 0.1 - 1 Torr;40%
1487-18-9

(furan-2-yl)ethylene

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With diethyl ether; bromine at -20℃; Behandeln des Reaktionsprodukts mit aethanol. Kalilauge;
539-47-9

3-(fur-2-yl)crotonic acid

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With bromine Erwaermen der erhaltenen 2,3-Dibrom-3-<2>furyl-propionsaeure mit wss. Alkalilauge;
98-01-1

furfural

27491-70-9, 28447-24-7, 25411-73-8

dimethyl diazomethylphosphonate

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With potassium tert-butylate 1.) THF, -78 deg C, 5 min, 2.) 8 h; Yield given. Multistep reaction;
178173-83-6

4-Furan-2-yl-2-methyl-but-3-yn-2-ol

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With potassium hydroxide In paraffin under 1 Torr; for 0.5h; Heating; Yield given;
54829-48-0

2-iodofuran

4301-14-8

acetylenemagnesium bromide

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); zinc dibromide In tetrahydrofuran at 22 - 23℃; for 1h;92 % Chromat.
α-bromo-α--ethylene

α-bromo-α--ethylene

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With potassium hydroxide
β-bromo-α--ethylene

β-bromo-α--ethylene

18649-64-4

2-ethynylfuran

Conditions
ConditionsYield
With potassium hydroxide

2-Ethynylfuran Specification

The IUPAC name of this chemical is 2-Ethynylfuran. With the CAS registry number 18649-64-4, it is also named as Furan,2-ethynyl-. In addition, the molecular formula is C6H4O and the molecular weight is 92.10. It should be stored in a cool and dry place.

Physical properties about 2-Ethynylfuran are: (1)ACD/LogP: 1.56; (2)ACD/LogD (pH 5.5): 1.56; (3)ACD/LogD (pH 7.4): 1.56; (4)ACD/BCF (pH 5.5): 9.05; (5)ACD/BCF (pH 7.4): 9.05; (6)ACD/KOC (pH 5.5): 168.38; (7)ACD/KOC (pH 7.4): 168.38; (8)#H bond acceptors: 1; (9)Polar Surface Area: 13.14 Å2; (10)Index of Refraction: 1.5; (11)Molar Refractivity: 26.29 cm3; (12)Molar Volume: 89.3 cm3; (13)Polarizability: 10.42 ×10-24cm3; (14)Surface Tension: 35.6 dyne/cm; (15)Density: 1.03 g/cm3; (16)Flash Point: 12.2 °C; (17)Enthalpy of Vaporization: 33.09 kJ/mol; (18)Boiling Point: 106.3 °C at 760 mmHg; (19)Vapour Pressure: 33.1 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: C#Cc1occc1
(2)InChI: InChI=1/C6H4O/c1-2-6-4-3-5-7-6/h1,3-5H
(3)InChIKey: CTVCBOZMKFQEAP-UHFFFAOYAB

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