107-00-6

Basic information

• Product Name: 1-Butyne
• Synonyms: Ethylacetylene;Ethylethyne
• CAS NO: 107-00-6
• Molecular Formula: C₄H₆
• Molecular Weight: 54
• EINECS: 203-451-3
• Mol File: 107-00-6.mol
• Article Data: 23

Chemical Properties

• Boiling Point: 7.8°Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 0.69g/cm³
• Vapor Pressure: 1390mmHg at 25°C
• Refractive Index: 1.386
• CAS DataBase Reference: 1-Butyne(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Butyne(107-00-6)
• EPA Substance Registry System: 1-Butyne(107-00-6)

Safety Data

• Hazardous Substances Data: 107-00-6(Hazardous Substances Data)

Usage

General Description

1-Butyne, also known as but-1-yne, is a colorless gas with a noticeable odor. It is a highly flammable and reactive compound that is commonly used as a precursor in organic synthesis and in the production of various chemical compounds. 1-Butyne is also used as a welding gas and in the manufacture of pharmaceuticals, plastics, and rubber products. It has a triple bond between two carbon atoms, making it highly reactive and prone to polymerization. Due to its potential hazards, proper handling and storage of 1-Butyne are essential to prevent accidents and exposure.

InChI:InChI=1/C4H6/c1-3-4-2/h1H,4H2,2H3

Synthetic route

N-benzyl-N-pent-2-ynylamine + 2-cyclohexylacetylene (931-48-6) → but-1-yne (107-00-6) + N-benzyl-3-cyclohexylprop-2-yn-1-amine

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 97%

N-benzyl-N-pent-2-ynylamine + 4-methylpentyne (7154-75-8) → but-1-yne (107-00-6) + N-benzyl-5-methylhex-2-yn-1-amine

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 95%

N-benzyl-N-pent-2-ynylamine + 2,2-dimethyl-3-butyne (917-92-0) → but-1-yne (107-00-6) + N-benzyl 4,4-dimethyl-pent-2-ynylamine (1610010-33-7)

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 95%

N-benzyl-N-pent-2-ynylamine + hex-1-yne (693-02-7) → but-1-yne (107-00-6) + N-benzylhept-2-yn-1-amine (1379038-80-8)

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 87%

N-benzyl-N-pent-2-ynylamine + 4-Phenyl-1-butyne (16520-62-0) → but-1-yne (107-00-6) + N-benzyl-5-phenylpent-2-yn-1-amine

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 87%

N-benzyl-N-pent-2-ynylamine + Cyclopropylacetylene (6746-94-7) → but-1-yne (107-00-6) + N-benzyl 3-cyclopropyl-prop-2-ynylamine

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 80%

triphenylphosphoranylidene-2-butanone (19753-66-3) → but-1-yne (107-00-6)

Conditions	Yield
at 750℃; under 0.01 Torr;	78%
at 750℃;	78%

N-benzyl-N-pent-2-ynylamine + phenylacetylene (536-74-3) → but-1-yne (107-00-6) + N-(3-phenylprop-2-ynyl)benzenemethanamine (40032-57-3)

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 75%

N-benzyl-N-pent-2-ynylamine + 1-ethynyl-4-fluorobenzene (766-98-3) → but-1-yne (107-00-6) + N-benzyl-3-(4-fluorophenyl)prop-2-yn-1-amine

Conditions	Yield
With Lu(N(SiMe3)2)3 In toluene at 130℃; for 12h; Inert atmosphere; Glovebox; Schlenk technique; Sealed tube;	A n/a B 70%

2-propynyl chloride (624-65-7) + dimethyldiazene → but-1-yne (107-00-6) + 2,3-dimethylbutene (590-19-2)

Conditions	Yield
at 20℃; under 50 Torr; Kinetics; radical cross-combination reaction; Photolysis;	A 60% B 40%

crushed scrap tires → but-1-yne (107-00-6)

Conditions	Yield
at 750℃; Formation of xenobiotics;	0.012%

3-buten-1-yne (689-97-4) → but-1-yne (107-00-6)

Conditions	Yield
With nickel Hydrogenation;

1-butylene (106-98-9) + butene-2 (107-01-7) → but-1-yne (107-00-6) + dimethylacetylene (503-17-3)

ethyl bromide (74-96-4) + sodium acetylide (1066-26-8) → but-1-yne (107-00-6)

Conditions	Yield
With ammonia

diethyl sulfate (64-67-5) + sodium acetylide (1066-26-8) → but-1-yne (107-00-6)

Conditions	Yield
With ammonia
With diphenylether at 130 - 190℃;
With xylene
With tetrahydrofuran; N,N-dimethyl-formamide; benzene at 0℃;
In 5,5-dimethyl-1,3-cyclohexadiene at 90℃;

dimethylacetylene (503-17-3) + cefaloridine (50-59-9) → but-1-yne (107-00-6) + 2,3-dimethylbutene (590-19-2)

Conditions	Yield
at 280℃;

dimethylacetylene (503-17-3) → but-1-yne (107-00-6)

Conditions	Yield
With sodium Zers. der gebildeten Natrium-Verbindung mit Wasser;

2-bromobutene (23074-36-4) → but-1-yne (107-00-6)

Conditions	Yield
With potassium carbonate at 100℃;
With potassium hydroxide at 120 - 125℃;

4-methoxy-but-2-yne (2768-41-4) → but-1-yne (107-00-6)

Conditions	Yield
With sodium amide

2,3-dibromobutane (5408-86-6) → but-1-yne (107-00-6) + dimethylacetylene (503-17-3)

Conditions	Yield
With potassium hydroxide; diethylene glycol at 180℃;

(E)/(Z)-1-bromo-1-butene (31844-98-1) → but-1-yne (107-00-6)

Conditions	Yield
With potassium hydroxide; ethanol at 180℃;

2,3-dimethylbutene (590-19-2) + cefaloridine (50-59-9) → but-1-yne (107-00-6) + buta-1,3-diene (106-99-0)

Conditions	Yield
at 330℃;

2,3-dimethylbutene (590-19-2) → but-1-yne (107-00-6)

Conditions	Yield
With diethyl ether; sodium Zers. der gebildeten Natrium-Verbindung mit Wasser;

2,3-dimethylbutene (590-19-2) → but-1-yne (107-00-6) + butene-2 (107-01-7)

Conditions	Yield
With sodium at 60℃;

2,2-dichlorobutane (4279-22-5) → but-1-yne (107-00-6)

Conditions	Yield
With potassium hydroxide at 130 - 135℃; unter Druck, Erwaermen des Destillates mit Natrium unter Druck auf 100grad;
With vaseline oil; sodium amide at 170 - 219℃;

1,2-dichlorobutane (616-21-7, 130232-87-0, 130232-88-1) → but-1-yne (107-00-6)

Conditions	Yield
With potassium hydroxide at 130 - 135℃; unter Druck, Erwaermen des Destillates mit Natrium unter Druck auf 100grad;

N-(2-hydroxy-butyl)-N-nitroso-benzamide (99841-48-2) → but-1-yne (107-00-6)

sodium acetylide (1066-26-8) + ethyl iodide (75-03-6) → but-1-yne (107-00-6)

Conditions	Yield
With ammonia at -40℃;

butanone (78-93-3) → but-1-yne (107-00-6)

Conditions	Yield
With phosphorus pentachloride; potassium carbonate

acetylene (74-86-2) → but-1-yne (107-00-6)

Conditions	Yield
With iron sulfide at 300 - 310℃;

but-1-yne (107-00-6) + methyloxirane (75-56-9, 16033-71-9) → (R,S)-4-Heptyn-2-ol (19781-81-8)

Conditions	Yield
With n-butyllithium In N,N,N,N,N,N-hexamethylphosphoric triamide 1.)-20 deg C, 30 min., 2.)R.T.;	100%
	46%

but-1-yne (107-00-6) + triphenylstannane (892-20-6) → crotyltriphenylstannane (41391-52-0, 466696-60-6, 63787-69-9)

Conditions	Yield
With 2,2'-azobis(isobutyronitrile) In tetrahydrofuran 70°C, 3 h, 5:1;;	100%
With azobisisobutyronitrile In tetrahydrofuran 70°C, 3 h, 5:1;;	100%
With azo-bis-isobutyric acid dinitrile In tetrahydrofuran reaction for 3 h at 70°C in presence of azoisobutyric acid dinitrile;;

but-1-yne (107-00-6) + 5-fluoro-2-iodoaniline → 2-but-1-ynyl-5-fluoro-phenylamine (1158918-72-9)

Conditions	Yield
With triethylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide In tetrahydrofuran at 20℃; for 3h; Inert atmosphere;	100%

but-1-yne (107-00-6) + 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane (25015-63-8) → 2-[(1E)-but-1-en-1-yl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1301680-12-5)

Conditions	Yield
With zirconocene dichloride; lithium triethylborohydride; triethylamine In tetrahydrofuran at -78 - 20℃; Inert atmosphere;	100%
Stage #1: but-1-yne; 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane at -78℃; for 0.5h; Inert atmosphere; Stage #2: With bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride; lithium triethylborohydride; triethylamine In tetrahydrofuran at -78 - 20℃; for 20h;	65%
With bis(cyclohexanyl)borane In neat (no solvent) at -78 - 0℃; for 6h; Glovebox; Inert atmosphere; enantioselective reaction;

but-1-yne (107-00-6) + N-(1-ethylpropyl)-2-iodo-4-nitroaniline (150057-74-2) → (2-But-1-ynyl-4-nitro-phenyl)-(1-ethyl-propyl)-amine (150057-82-2)

Conditions	Yield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In N,N-dimethyl-formamide for 20h; Ambient temperature;	99%

n-butyllithium (109-72-8, 29786-93-4) + but-1-yne (107-00-6) → pent-2-yn-1-ol (6261-22-9)

Conditions	Yield
With paraformaldehyde In tetrahydrofuran; hexane	99%

but-1-yne (107-00-6) + (S)-2-[(4-methoxybenzyloxy)methyl]oxirane (80910-01-6, 108836-41-5, 134733-19-0, 144069-33-0) → (S)-1-(4-methoxybenzyloxy)hept-4-yn-2-ol (1099777-06-6)

Conditions	Yield
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1.5h; Inert atmosphere; Stage #2: (S)-2-[(4-methoxybenzyloxy)methyl]oxirane With boron trifluoride diethyl etherate In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere;	99%
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78 - -30℃; for 0.5h; Inert atmosphere; Stage #2: With boron trifluoride diethyl etherate In tetrahydrofuran; hexane at -30℃; for 0.166667h; Inert atmosphere; Stage #3: (S)-2-[(4-methoxybenzyloxy)methyl]oxirane In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; regioselective reaction;	95%

but-1-yne (107-00-6) + methyl 6-bromo-5-fluoropyridine-2-carboxylate (1210419-26-3) → methyl 6-but-1-yn-1-yl-5-fluoropyridine-2-carboxylate

Conditions	Yield
Stage #1: methyl 6-bromo-5-fluoropyridine-2-carboxylate With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In 1,4-dioxane at 20℃; for 0.0833333h; Inert atmosphere; Stage #2: but-1-yne In 1,4-dioxane at 60℃; for 3h; Sonogashira Cross-Coupling;	99%

but-1-yne (107-00-6) + 2,3-dimethyl-2,3-butane diol (76-09-5) → (Z)-2-(2-bromobut-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Conditions	Yield
Stage #1: but-1-yne With Bromoform In dichloromethane at -78 - 20℃; Inert atmosphere; Schlenk technique; Stage #2: 2,3-dimethyl-2,3-butane diol In dichloromethane at -78 - 20℃; Inert atmosphere; Schlenk technique;	99%

but-1-yne (107-00-6) + sec-Butyl-(2-iodo-4-nitro-phenyl)-amine (174275-08-2) → sec-Butyl-(2-but-1-ynyl-4-nitro-phenyl)-amine (174275-10-6)

Conditions	Yield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In N,N-dimethyl-formamide for 20h; Ambient temperature;	98%

but-1-yne (107-00-6) + N-benzyl-6-chloro-5-iodo-2-(methylthio)-pyrimidin-4-amine (1034619-80-1) → N-benzyl-5-(but-1-ynyl)-6-chloro-2-(methylthio)-pyrimidin-4-amine (1034619-81-2)

Conditions	Yield
With copper(l) iodide; triethylamine; bis(dibenzylideneacetone)-palladium(0) In tetrahydrofuran at 55℃; for 1.5h; Sonogashira coupling; Inert atmosphere;	98%

but-1-yne (107-00-6) + 4β-azido-4-deoxy-4′-demethylepipodophyllotoxin (117604-05-4) → 4'-O-demethyl-4β-[4-(ethyl)-1,2,3-triazol-1-yl]-4-desoxypodophyllotoxin (1310548-37-8)

Conditions	Yield
With copper(ll) sulfate pentahydrate; L-ascorbic acid sodium salt In water; tert-butyl alcohol at 0 - 20℃;	98%

4-toluenesulfonyl azide (941-55-9) + but-1-yne (107-00-6) → C11H13N3O2S

Conditions	Yield
In toluene at 0℃; for 6h; Inert atmosphere;	98%
With copper(I) thiophene-2-carboxylate In 1,2-dichloro-ethane at 20℃; for 6h; Glovebox;

but-1-yne (107-00-6) + methyl chloroformate (79-22-1) → methyl pent-2-ynoate (24342-04-9)

Conditions	Yield
With n-butyllithium In diethyl ether 1.) -80 deg C, 30 min, 2.) warm to room temperature;	97%
Stage #1: but-1-yne With n-butyllithium Stage #2: methyl chloroformate
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Inert atmosphere; Stage #2: methyl chloroformate In tetrahydrofuran at -78℃; for 3h; Inert atmosphere;

but-1-yne (107-00-6) + N-methoxy-N-methyl-hex-5-enamide (122334-35-4) → dec-9-en-3-yn-5-one (1244781-31-4)

Conditions	Yield
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78 - 0℃; Stage #2: N-methoxy-N-methyl-hex-5-enamide In tetrahydrofuran; hexane at -78 - -10℃;	97%

but-1-yne (107-00-6) + (S)-Propylene oxide (16088-62-3) → (S)-(+)-hept-4-yn-2-ol (90192-96-4)

Conditions	Yield
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -50 - 0℃; for 0.5h; Inert atmosphere; Stage #2: (S)-Propylene oxide In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; hexane at -20 - 20℃; for 16.5h;	96%
With n-butyllithium In N,N,N,N,N,N-hexamethylphosphoric triamide 1.)-20 deg C, 30 min., 2.)R.T.;	87%
With N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium 1) THF, -40 to 0 deg C, 2) -20 to 0 deg C; Yield given. Multistep reaction;
With n-butyllithium In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide at -50 - 0℃; for 16h; Inert atmosphere;
With N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium In tetrahydrofuran at -78 - 20℃; for 16h; Inert atmosphere;

but-1-yne (107-00-6) + phenyldimethylsilyl chloride (768-33-2) → 1-dimethyl(phenyl)silylbut-1-yne (146758-90-9)

Conditions	Yield
With n-butyllithium In tetrahydrofuran; hexane 1.) -45 deg C, 1 h, 2.) -45 to 20 deg C, 1 h;	96%
With n-butyllithium 1.) hexane, THF, 0 deg C, 30 min, 2.) reflux, 18 h; Yield given. Multistep reaction;

but-1-yne (107-00-6) + 4-bromo-benzaldehyde (1122-91-4) → 4-but-1-ynyl-benzaldehyde (652974-14-6)

Conditions	Yield
With copper(l) iodide; tris(dibenzylideneacetone)dipalladium (0); triphenylphosphine; triethylamine at 80℃; for 24h; Sonogashira cross-coupling reaction;	96%

but-1-yne (107-00-6) + 2-(1H-pyrrol-1-yl)aniline (6025-60-1) → 4-ethyl-4-methyl-4,5-dihydro-pyrrolo[1,2-a]quinoxaline

Conditions	Yield
With tetrafluoroboric acid diethyl ether; dodecacarbonyl-triangulo-triruthenium In benzene at 95℃; for 24h;	96%

but-1-yne (107-00-6) + 4β-azido-4-deoxypodophyllotoxin (155252-34-9) → 4β-[4-(ethyl)-1,2,3-triazol-1-yl]-4-desoxypodophyllotoxin (1310548-29-8)

Conditions	Yield
With copper(ll) sulfate pentahydrate; L-ascorbic acid sodium salt In water; tert-butyl alcohol at 0 - 20℃;	96%

but-1-yne (107-00-6) + 2-bromo-5-((tert-butyldimethylsilyl)oxy)cyclopent-1-ene-1-carbaldehyde → 1-(2-bromo-5-((tert-butyldimethylsilyl)oxy)-cyclopent-1-en-1-yl)pent-2-yn-1-ol

Conditions	Yield
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78 - -30℃; for 0.5h; Inert atmosphere; Stage #2: 2-bromo-5-((tert-butyldimethylsilyl)oxy)cyclopent-1-ene-1-carbaldehyde In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere;	96%

but-1-yne (107-00-6) + (R)-propylene oxide (15448-47-2) → (R)-(-)-Heptyn-2-ol (90192-97-5)

Conditions	Yield
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78 - 0℃; for 1h; Stage #2: (R)-propylene oxide With N,N,N,N,N,N-hexamethylphosphoric triamide In tetrahydrofuran; hexane at -20 - 20℃; for 17h;	95%
With N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium In tetrahydrofuran at -78 - 20℃; for 12h;	95%
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Stage #2: (R)-propylene oxide With 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone In tetrahydrofuran; hexane at -30 - 20℃; for 18h; Inert atmosphere;	85%
With n-butyllithium In N,N,N,N,N,N-hexamethylphosphoric triamide 1.)-20 deg C, 30 min., 2.)R.T.;	81%
With n-butyllithium In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide at -50 - 0℃; for 16h; Inert atmosphere;

but-1-yne (107-00-6) + Diethyl methylmalonate (609-08-5) → 2-methyl-2-(1-methylenepropyl)malonic acid diethyl ester

Conditions	Yield
With In(OSO2CF3)3 at 110℃;	95%

but-1-yne (107-00-6) + 12-bromo-1-(2-tetrahydropyranyloxy)-(Z)-11-dodecene (127022-43-9) → octa-3,5-diyne (16387-70-5) + 2-[((Z)-Hexadec-11-en-13-ynyl)oxy]-tetrahydro-pyran (127022-44-0)

Conditions	Yield
With propylamine; copper(l) iodide; diisobutylaluminium hydride; bis-triphenylphosphine-palladium(II) chloride In toluene 1.) room temperature, 12 h, 2.) 50 deg C, 4 h;	A n/a B 94%

but-1-yne (107-00-6) + paraformaldehyde-d2 (1664-98-8) → <1,1-2H2>pent-2-yn-1-ol (115150-62-4)

Conditions	Yield
Stage #1: but-1-yne With ethyl bromide; magnesium In tetrahydrofuran at -5 - 30℃; Inert atmosphere; Stage #2: paraformaldehyde-d2 In tetrahydrofuran for 3h; Reflux; Stage #3: With sulfuric acid In tetrahydrofuran; water Cooling with ice;	94%
Stage #1: but-1-yne With ethylmagnesium bromide In tetrahydrofuran at -5 - 30℃; for 1.25h; Stage #2: paraformaldehyde-d2 In tetrahydrofuran for 3h; Reflux;

but-1-yne (107-00-6) + tert-butyldimethylsilyl (S)-glycidyl ether (78906-15-7, 114413-26-2, 124150-87-4, 123237-62-7) → C13H26O2Si (1365694-18-3)

Conditions	Yield
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran at -78℃; for 0.25h; Inert atmosphere; Stage #2: tert-butyldimethylsilyl (S)-glycidyl ether With boron trifluoride diethyl etherate In tetrahydrofuran at -78℃; for 3h; Inert atmosphere;	94%
Stage #1: but-1-yne With n-butyllithium In tetrahydrofuran at -78℃; for 0.25h; Stage #2: tert-butyldimethylsilyl (S)-glycidyl ether With boron trifluoride diethyl etherate In tetrahydrofuran at -78℃; for 3h;	94%
With n-butyllithium; boron trifluoride diethyl etherate In tetrahydrofuran at -78℃;	84%

but-1-yne (107-00-6) + 4,4-diethyl-1,2-dithiolane (41174-10-1) → 2,6,6-Triethyl-6,7-dihydro-5H-[1,4]dithiepine

Conditions	Yield
With potassium tert-butylate In tert-butyl alcohol under 760 Torr; for 48h; Ambient temperature;	93%

Upstream product

• 74-96-4 ethyl bromide 
• 1066-26-8 sodium acetylide 
• 503-17-3 dimethylacetylene 
• 50-59-9 cefaloridine 
• 23074-36-4 2-bromobutene 
• 74-86-2 acetylene 
• 106-99-0 buta-1,3-diene 
• 2465-56-7 methylene 
• 74-99-7 prop-1-yne 
• 21913-99-5 2-(3,4-dihydroxyphenyl)-7-hydroxychroman-4-one 
• 534-22-5 2-methylfuran 
• 64-67-5 diethyl sulfate 
• 7664-41-7 ammonia 
• 693-02-7 hex-1-yne 

Downstream Products

• 61886-64-4 3-octadecyne 
• 503-17-3 dimethylacetylene 
• 627-21-4 2-Pentyne 
• 55030-56-3 1,2-dibromo-but-1-ene 
• 590-19-2 2,3-dimethylbutene 
• 353-81-1 2,2-difluorobutane 
• 533-98-2 1,2-dibromobutane 
• 62981-74-2 methyl-1-chloropropyne 
• 50405-39-5 1-bromobut-1-yne 
• 66794-29-4 1-Iodo-1-butyne 
• 79267-31-5 1,1,2,2-tetrachloro-butane 
• 21913-99-5 2-(3,4-dihydroxyphenyl)-7-hydroxychroman-4-one 
• 108-24-7 acetic anhydride 
• 78-93-3 butanone 

Related news

Kinetic studies on the hydrogenation of 1,3-butadiene, 1-Butyne (cas 107-00-6) and their mixtures08/26/2019

The kinetics of the heterogeneously catalyzed hydrogenation of 1,3-butadiene and mixtures of 1-butyne/1,3-butadiene have been investigated for a Pd/Al2O3 egg-shell catalyst. In contrast to the hydrogenation of butenes, the gas phase hydrogenation of 1,3-butadiene shows a restricted reproducibili...detailed

Kinetic study of the liquid-phase hydrogenation of 1-Butyne (cas 107-00-6) over a commercial palladium/alumina catalyst08/24/2019

Hydrorefining of C4 cuts of unsaturated hydrocarbons involves the selective removal of 1-butyne by catalytic hydrogenation. Due to its technological relevance, we investigated the hydrogenation of 1-butyne over a commercial palladium-based catalyst of the eggshell type. The experimental conditio...detailed

Kinetic study of the liquid-phase selective hydrogenation of 1-Butyne (cas 107-00-6) in presence of 1-butene over a commercial palladium-based catalyst08/22/2019

A kinetic investigation of the liquid-phase selective hydrogenation of 1-butyne in presence of 1-butene was performed over a commercial palladium-based/alumina catalyst of the eggshell type. This investigation is aimed at validating a kinetic expression to describe 1-butyne hydrogenation under e...detailed

Reaction dynamics of the phenyl radical (C6H5) with 1-Butyne (cas 107-00-6) (HCCC2H5) and 2-butyne (CH3CCCH3)08/21/2019

The reactions of the phenyl radical (C6H5) with 1-butyne (HCCC2H5) and 2-butyne (CH3CCCH3) were studied in a crossed molecular beam machine to shed light on the formation of C10H10 isomers in combustion flames. Combining these data with electronic structure calculations, we find that both reacti...detailed

Relevant articles and documents

-

-

Synthesis of 28-homobrassinosteroids modified in the 26-position

28-Homobrassinosteroids modified in the 26-position were synthesized from 22-hydroxy-23-ensteroids using Claisen rearrangement and subsequent cis-hydroxylation of the resulting Δ22-derivative.

Direct Evidence on the Mechanism of Methane Conversion under Non-oxidative Conditions over Iron-modified Silica: The Role of Propargyl Radicals Unveiled

Radical-mediated gas-phase reactions play an important role in the conversion of methane under non-oxidative conditions into olefins and aromatics over iron-modified silica catalysts. Herein, we use operando photoelectron photoion coincidence spectroscopy to disentangle the elusive C2+ radical intermediates participating in the complex gas-phase reaction network. Our experiments pinpoint different C2-C5 radical species that allow for a stepwise growth of the hydrocarbon chains. Propargyl radicals (H2C?C≡C?H) are identified as essential precursors for the formation of aromatics, which then contribute to the formation of heavier hydrocarbon products via hydrogen abstraction–acetylene addition routes (HACA mechanism). These results provide comprehensive mechanistic insights that are relevant for the development of methane valorization processes.

An acelylenically of a diene compound and/or method of manufacturing

Provided is a novel method for producing a compound having acetylene bonds and/or a diene. The method for producing a compound having acetylene bonds and/or a diene is characterized in that at least one selected from the group consisting of ketone compound (I), ketone compound (II), aldehyde compound (III), aldehyde compound (IV), and aldehyde compound (V) is dehydrated in the presence of a catalyst wherein a carrier containing silica supports at least one selected from the group consisting of compounds containing group 1 metal elements, compounds containing group 2 metal elements, group 1 metal elements, and group 2 metal elements.