BUTEN-3-YNE supplier | CasNO.689-97-4

Name
1-Buten-3-yne
EINECS
CAS No. 689-97-4
Article Data187
CAS DataBase
Density 0.709g/cm³
Solubility
Melting Point 203 °C(Solv: water (7732-18-5))
Formula C4H4
Boiling Point 5.1°C at 760 mmHg
Molecular Weight 52.0758
Flash Point
Transport Information
Appearance
Safety Low toxicity by inhalation. Forms explosive peroxides with air or oxygen. Very exothermic decomposition when heated. Reacts explosively when heated with 1,3-butadiene or oxygen. Reacts with silver nitrate to form the explosive silver buten-3-ynide. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES.
Risk Codes R20/21/22
Molecular Structure
Hazard Symbols Xn
Synonyms 1-Butenyne;1-Butyn-3-ene; 3-Buten-1-yne; 3-Butyn-1-ene; Butenyne; Ethene, ethynyl-;Monovinylacetylene; Vinylacetylene; Vinylethyne
PSA 0.00000
LogP 0.80560

Synthetic route

: 110-57-6
trans-1,4-dichlorobut-2-ene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With potassium hydroxide; 2,3-dimethyl-2,3-butane diol; Aliquat 336 In Petroleum ether for 1.5h; Heating;	70%
With potassium hydroxide; calcium oxide In dimethyl sulfoxide; xylene at 120℃;
With potassium hydroxide; 2-Butoxyethanol In ethylene glycol at 170℃; for 1h; Yield given;
With potassium hydroxide; 2,3-dimethyl-2,3-butane diol; Aliquat 336 In various solvent(s) at 135℃; for 1.5h;

: 764-41-0
1,4-dichloro-2-butene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With potassium hydroxide; cetyldimethylbenzylammonium chloride In dimethyl sulfoxide at 90 - 100℃; for 1h;	69%
With ammonia; sodium amide
In ethylene glycol at 50℃; Inert atmosphere;

: 6048-18-6
1-cyclobutyl-2-(triphenylphosphoranylidene)ethan-1-one

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
at 800 - 850℃; under 0.01 Torr;	67%
at 850℃; for 3h;	67%

: 1335114-45-8
benzoic 2-methyl-3-furoic anhydride

A: 689-97-4
3-buten-1-yne

B: 42827-31-6
4-methylene-2-cyclobuten-1-one

C: 65-85-0
benzoic acid

Conditions

Conditions	Yield
at 550℃; under 0.01 Torr; Pyrolysis; neat (no solvent);	A 55% B 17% C n/a

...Expand

: 1335114-46-9
benzoic 3-methyl-2-furoic anhydride

A: 689-97-4
3-buten-1-yne

B: 42827-31-6
4-methylene-2-cyclobuten-1-one

C: 65-85-0
benzoic acid

Conditions

Conditions	Yield
at 550℃; under 0.01 Torr; Pyrolysis; neat (no solvent);	A 50% B 15% C n/a

...Expand

: 1574-41-0
Z-piperylene

A: 689-97-4
3-buten-1-yne

B: 2004-70-8
1-methylbuta-1,3-diene

C: 4461-48-7
4-methyl-2-pentene

D: 542-92-7
cyclopenta-1,3-diene

E: 106-99-0
buta-1,3-diene

F: 74-86-2
acetylene

Conditions

Conditions	Yield
at 20℃; under 0.4 Torr; Product distribution; Irradiation; variation of pressure and additives;	A 0.2% B 0.3% C 0.13% D 0.25% E 0.09% F 0.22%

...Expand

: 513-35-9
2-methyl-but-2-ene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
bei der Einw. dunkler elektrischer Entladungen;

: 690-94-8
dimethyl(vinylethynyl)carbinol

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With potassium hydroxide at 105 - 110℃;

: 34557-54-5
methane

: 689-97-4
3-buten-1-yne

: 2657-67-2
(2R,3S)-1,2,3,4-Tetrabromo-butane

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With potassium hydroxide at 120℃;

: 7013-11-8
2,3-dichlorobut-1-ene

A: 689-97-4
3-buten-1-yne

B: 126-99-8
chloroprene

Conditions

Conditions	Yield
at 530℃; im Quarzrohr;

: 310447-99-5, 310448-01-2
3,4-dichlorobut-1-ene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With ammonia; sodium amide

: 13487-52-0
4-bromo-3-ethoxy-but-1-yne

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With zinc; butan-1-ol at 110 - 120℃;

: 623-11-0
1-methyl-4-nitrosobenzene

: buta-2,3-dienyl-trimethyl-ammonium; chloride

A: 689-97-4
3-buten-1-yne

B: 75-50-3
trimethylamine

...Expand

: 23418-85-1
3-butyn-1-yl p-toluenesulfonate

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With potassium hydroxide

: 1,2-bis-(4-methoxy-phenyl)-hex-5-en-3-yn-2-ol

A: 689-97-4
3-buten-1-yne

B: 120-44-5
1,4-di(4-methoxyphenyl)ethanone

: 116054-63-8
hexa-N-methyl-N,N'-but-2-enediyl-di-ammonium; dihydroxide

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
at 100 - 120℃; under 13 Torr;

: 106-99-0
buta-1,3-diene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
durch Crackung;

: 2028-63-9
but-3-yn-2-ol

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With basic aluminium sulfate at 240 - 260℃;

: 74-86-2
acetylene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With hydrogenchloride; ammonium chloride; copper(l) chloride at 50 - 75℃; unter Zusatz von Kupferpulver; Ausfuehrung der Reaktion unter Zusatz von Dispersionsmitteln wie Stearoyloxyaethansulfonsaeure;
With CuCl containing solid catalysts
With copper; ammonium chloride; copper(l) chloride Reagens4:Salzsaeure;

: 74-86-2
acetylene

A: 689-97-4
3-buten-1-yne

B: 821-08-9
hexa-1,5-dien-3-yne

Conditions

Conditions	Yield
With water; copper(l) chloride at 25 - 65℃; Gegenwart von Kupfer;
With water; ammonium chloride at 25 - 65℃; Gegenwart von Kupfer;
With hydrogenchloride; water at 25 - 65℃; Gegenwart von Kupfer;

: 74-86-2
acetylene

A: 689-97-4
3-buten-1-yne

B: 71-43-2
benzene

Conditions

Conditions	Yield
at 750℃; bei schnellem Leiten durch ein erhitztes Quarzrohr;
at 661.85℃; under 27 Torr; Kinetics; Further Variations:; Temperatures; Pressures;

: 14352-90-0
(3-chloro-but-2-enyl)-dimethyl-amine

: 926-57-8
1,3-dichloro-2-butene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With water beim anschliessenden Erwaermen mit wss. Natronlauge;

: 926-57-8
1,3-dichloro-2-butene

: 689-97-4
3-buten-1-yne

Conditions

Conditions	Yield
With potassium hydroxide; 2-Butoxyethanol; ethylene glycol at 165 - 170℃;
With potassium hydroxide In ethylene glycol tert-buty ether; ethylene glycol at -78℃; for 2h; Inert atmosphere;

: 106-97-8
n-butane

A: 689-97-4
3-buten-1-yne

B: 460-12-8
Butadiyne

C: 107-00-6
but-1-yne

D: 74-86-2
acetylene

Conditions

Conditions	Yield
bei der Einwirkung von Hochfrequenz-Entladungen;

...Expand

: 188290-36-0
thiophene

A: 689-97-4
3-buten-1-yne

B: 100945-80-0
2,3-butadienthial

C: 86596-77-2
cyclopropene-3-thiocarbaldehyde

D: 74-99-7
prop-1-yne

Conditions

Conditions	Yield
at -263.2℃; Irradiation; Further byproducts given;

...Expand

: 188290-36-0
thiophene

A: 689-97-4
3-buten-1-yne

B: 86596-77-2
cyclopropene-3-thiocarbaldehyde

C: 72110-26-0
Dewar thiophene

D: 74-99-7
prop-1-yne

Conditions

Conditions	Yield
at -263.2℃; Irradiation; Further byproducts given;

...Expand

: 98-82-8
Isopropylbenzene

A: 689-97-4
3-buten-1-yne

B: 292638-84-7
styrene

C: 100-41-4
ethylbenzene

D: 106-99-0
buta-1,3-diene

E: 74-86-2
acetylene

F: 98-83-9
isopropenylbenzene

Conditions

Conditions	Yield
With oxygen at 726.9℃; Mechanism; gas phase oxidation in flow reactor at various temperatures;

...Expand

: 107-00-6
but-1-yne

A: 689-97-4
3-buten-1-yne

B: 34557-54-5
methane

C: 74-84-0
ethane

D: 74-85-1
ethene

E: 463-49-0
1,2-propanediene

F: 74-86-2
acetylene

Conditions

Conditions	Yield
With bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyloxymethyl]bis(hydroxymethyl)methane under 10 Torr; Quantum yield; Irradiation; different pressures, different additives, different wavelengths;

...Expand

: 503-17-3
dimethylacetylene

A: 689-97-4
3-buten-1-yne

B: 590-18-1
(Z)-2-Butene

C: 34557-54-5
methane

D: 624-64-6
trans-2-Butene

E: 74-99-7
prop-1-yne

F: 74-86-2
acetylene

Conditions

Conditions	Yield
With bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyloxymethyl]bis(hydroxymethyl)methane under 1 Torr; Quantum yield; Irradiation; different pressures, different additives, different wavelengths;

...Expand

: 689-97-4
3-buten-1-yne

: 892-20-6
triphenylstannane

: 4104-92-1, 4104-91-0
Triphenyl-butadien-(1,2)-yl-(1)-zinn

Conditions

Conditions	Yield
In tetrahydrofuran 70°C, 3 h, molar ratio = 5:1, in presence of azobisisobutyronitrile;;	100%
In tetrahydrofuran 70°C, 3 h, molar ratio = 5:1, in presence of azobisisobutyronitrile;;	100%
With azo-bis-isobutyric acid dinitrile In tetrahydrofuran reaction for 3 h at 70°C in presence of azoisobutyric acid dinitrile;;

: 689-97-4
3-buten-1-yne

: 1708-32-3
2,5-dihydro-thiophene

Conditions

Conditions	Yield
With sodium hydrogensulfide; water In dimethyl sulfoxide at 90℃; for 4h;	97.8%

: 689-97-4
3-buten-1-yne

: 138234-21-6
((i)Pr2PC2H4P(i)Pr2)Pd(C2H4)

: 194996-69-5, 194996-76-4
Pd*(((CH3)2CH)2PCH2)2*HCCCHCH2=Pd((((CH3)2CH)2PCH2)2)(HCCCHCH2)

Conditions

Conditions	Yield
In pentane Ar-atmosphere, -30°C; crystn. (-78°C, 1 d), washing (pentane), drying (vac., -30°C); elem. anal.;	96%

: 689-97-4
3-buten-1-yne

: 1000-30-2
2,2,5-trimethyl-4-hexenal

: 6,6,9-trimethyldeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene at -78℃; for 0.5h; Inert atmosphere; Stage #2: 2,2,5-trimethyl-4-hexenal In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene at -78℃; for 3h; Inert atmosphere;	96%

: 689-97-4
3-buten-1-yne

: 993-67-9
2,2,3,3-tetramethylpent-4-enal

: 6,6,7,7-tetramethylnona-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Stage #2: 2,2,3,3-tetramethylpent-4-enal In tetrahydrofuran; hexane at -78℃; for 3h; Inert atmosphere;	94%

: 689-97-4
3-buten-1-yne

: 110-93-0
6-Methyl-hept-5-en-2-on

: 116851-03-7
5,9-dimethyldeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; Inert atmosphere; Stage #2: 6-Methyl-hept-5-en-2-on In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	92%

: 689-97-4
3-buten-1-yne

: 97764-12-0
5-cyclopentylidenepentan-2-one

: 1-cyclopentylidene-4-methyloct-7-en-5-yn-4-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; Inert atmosphere; Stage #2: 5-cyclopentylidenepentan-2-one In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	92%

: 689-97-4
3-buten-1-yne

: 50-00-0
formaldehyd

: 40807-61-2
4-hydroxy-4-phenylpiperidin

: 94769-52-5
1-(pentyn-2'-en-4'-yl)-4-phenylpiperidin-4-ol

Conditions

Conditions	Yield
With copper(I) chloride In 1,4-dioxane at 110 - 115℃; for 14.5h;	91.8%

...Expand

: 689-97-4
3-buten-1-yne

: 15226-74-1, 61091-28-9, 61117-58-6
dicobalt octacarbonyl

: (but-3-en-1-yne)Co2(CO)6

Conditions

Conditions	Yield
In diethyl ether byproducts: CO; under Ar; Co2(CO)8 added to vinylacetylene in ether, stirred for 40 min; filtration through silica gel, evapn., residue dissolved in hexane, filtration, evapn.;	91%

: 689-97-4
3-buten-1-yne

: 25524-99-6
(E)-5-methylhept-5-en-2-one

: (E)-5,8-dimethyldeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; Inert atmosphere; Stage #2: (E)-5-methylhept-5-en-2-one In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	89%

: 689-97-4
3-buten-1-yne

: 2228-92-4
1-(3-methylbut-2-en-1-yl)cyclopentane-1-carbaldehyde

: 1-(1-(3-methylbut-2-en-1-yl)cyclopentyl)pent-4-en-2-yn-1-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; Inert atmosphere; Stage #2: 1-(3-methylbut-2-en-1-yl)cyclopentane-1-carbaldehyde In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	89%

: 689-97-4
3-buten-1-yne

: 4-(benzo[b]furan-2-yl)butan-2-one

: 1-(benzofuran-2-yl)-3-methylhept-6-en-4-yn-3-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; Inert atmosphere; Stage #2: 4-(benzo[b]furan-2-yl)butan-2-one In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	88%

: 689-97-4
3-buten-1-yne

: 829-85-6
diphenylphosphane

: 73892-35-0
1,4-bis(diphenylphosphino)-2-butene

Conditions

Conditions	Yield
With potassium hydroxide In dimethyl sulfoxide for 1h; Ambient temperature;	87.7%

: 689-97-4
3-buten-1-yne

: 58191-81-4
2-isopropenyl-5-methyl-4-hexenal

: 6-isopropyl-9-methyldeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Stage #2: 2-isopropenyl-5-methyl-4-hexenal In tetrahydrofuran; hexane at -78℃; for 3h; Inert atmosphere;	87%

: 689-97-4
3-buten-1-yne

: 56305-41-0
(E)-1-phenylhept-4-en-1-one

: (E)-5-phenylundeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: (E)-1-phenylhept-4-en-1-one In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	87%

: 689-97-4
3-buten-1-yne

: 108-94-1
cyclohexanone

: 2696-22-2
1-vinylethynyl-1-cyclohexanol

Conditions

Conditions	Yield
With potassium hydroxide In dimethyl sulfoxide for 2h; Ambient temperature;	85%
With potassium hydroxide; diethyl ether
With potassium hydroxide; xylene
With diethyl ether; sodium amide
(i) EtMgBr, (ii) /BRN= 385735/; Multistep reaction;

: 689-97-4
3-buten-1-yne

: 1067-52-3
tributyltin methoxide

: 994-80-9
but-3-en-1-yn-1-yltributylstannane

Conditions

Conditions	Yield
	85%
	85%

: 689-97-4
3-buten-1-yne

: 1067-21-6
triethylmethoxystannane

: 994-98-9
1-triethylstannylbut-3-ene-1-yne

Conditions

Conditions	Yield
room temp., 3-4 h;;	85%
room temp., 3-4 h;;	85%

: 689-97-4
3-buten-1-yne

: 10075-50-0
5-bromo-1H-indole

: (E)-3-(1H-indol-5-yl)acrylonitrile

Conditions

Conditions	Yield
With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐3‐sulfonate; sodium tetrachloropalladate; sodium carbonate In water; acetonitrile at 80℃; for 1h; Heck Reaction; Inert atmosphere; Microwave irradiation;	85%

: 689-97-4
3-buten-1-yne

: 1-(3-methylbut-2-en-1-yl)cyclohexane-1-carbaldehyde

: 1-(1-(3-methylbut-2-en-1-yl)cyclohexyl)pent-4-en-2-yn-1-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Stage #2: 1-(3-methylbut-2-en-1-yl)cyclohexane-1-carbaldehyde In tetrahydrofuran; hexane at -78℃; for 3h; Inert atmosphere;	84%

: 689-97-4
3-buten-1-yne

: 688-61-9, 53588-88-8, 90721-85-0, 151452-33-4, 151452-35-6
Triallylborane

: 55951-37-6
3-vinyl-1,5-diallyl-1-bora-2-cyclohexene

Conditions

Conditions	Yield
In neat (no solvent) (Ar), mixed, cooled to 30-50°C, heated at 50-60°C for 1,5h; distd., elem. anal., IR, NMR;	83.5%

: 689-97-4
3-buten-1-yne

: 17157-02-7
9-iodo-m-carborane

: 925-90-6
ethylmagnesium bromide

: 98420-23-6
C2H2B10H9(CH2CHCC)

Conditions

Conditions	Yield
tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane; diethyl ether addn. of EtMgBr in ether to a soln. of acetylenic derivate in absolute dioxane (N2), heating for 1 h at 40°C, cooling, addn. of carborane and Pd-catalyst in dioxane, heating for 30 h at 60°C (stirring), monitoring of react. by GLC; pouring into a ca. 18% soln. of HCl, extn. by ether, washing with H2O, drying (MgSO4), distn. of solvents in vac., column chromy. of residue (silica gel), benzene-petroleum ether (bp 40-70°C) as eluent; elem.anal.;	82%

Yield

tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane; diethyl ether addn. of EtMgBr in ether to a soln. of acetylenic derivate in absolute dioxane (N2), heating for 1 h at 40°C, cooling, addn. of carborane and Pd-catalyst in dioxane, heating for 30 h at 60°C (stirring), monitoring of react. by GLC; pouring into a ca. 18% soln. of HCl, extn. by ether, washing with H2O, drying (MgSO4), distn. of solvents in vac., column chromy. of residue (silica gel), benzene-petroleum ether (bp 40-70°C) as eluent; elem.anal.;

82%

...Expand

: 689-97-4
3-buten-1-yne

: 18370-33-7
2-ethyl-5-methylhex-4-enal

: 6-ethyl-9-methyldeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Stage #2: 2-ethyl-5-methylhex-4-enal In tetrahydrofuran; hexane at -78℃; for 3h; Inert atmosphere;	82%

: 689-97-4
3-buten-1-yne

: 1112-63-6
hexaethyldistannoxane

: 994-98-9
1-triethylstannylbut-3-ene-1-yne

Conditions

Conditions	Yield
room temp., 3-5 h;;	81.6%
room temp., 3-5 h;;	81.6%
In diethyl ether byproducts: (C2H5)3SnCCC6H5; room temp., 8 h, in presence of NaCCC6H5;;	39%
In diethyl ether byproducts: (C2H5)3SnCCC6H5; room temp., 8 h, in presence of NaCCC6H5;;	39%

: 689-97-4
3-buten-1-yne

: 688-61-9, 53588-88-8, 90721-85-0, 151452-33-4, 151452-35-6
Triallylborane

: 55951-42-3
1-methoxy-5-allyl-3-vinyl-1-bora-2-cyclohexene

Conditions

Conditions	Yield
With methanol In neat (no solvent) byproducts: C3H6; (Ar), mixed at 50-60°C, heated at 55°C for 1 h, treated with CH3OH; distd., elem. anal.;	81%

: 689-97-4
3-buten-1-yne

: 85416-29-1
(Z)-10-Iodo-1-(2-tetrahydropyranyloxy)-9-decene

: 1218999-61-1
2-(tetradeca-9,13-dien-11-yn-1-yloxy)tetrahydro-2H-pyran

Conditions

Conditions	Yield
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide In pyrrolidine at 0 - 20℃; for 3h; Sonogashira coupling; Inert atmosphere;	81%

: 689-97-4
3-buten-1-yne

: (Z)-1-phenylhept-4-en-1-one

: (Z)-5-phenylundeca-1,8-dien-3-yn-5-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: (Z)-1-phenylhept-4-en-1-one In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	81%

: 689-97-4
3-buten-1-yne

: 2520-57-2
2,10-dimethyl-2,9-undecadien-6-one

: 6-(but-3-en-1-yn-1-yl)-2,10-dimethylundeca-2,9-dien-6-ol

Conditions

Conditions	Yield
Stage #1: 3-buten-1-yne With n-butyllithium In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78℃; Inert atmosphere; Stage #2: 2,10-dimethyl-2,9-undecadien-6-one In tetrahydrofuran; 5,5-dimethyl-1,3-cyclohexadiene; hexane at -78 - 20℃; for 5h; Inert atmosphere;	81%

: 689-97-4
3-buten-1-yne

: 830-13-7
cyclododecanone

: 75279-83-3
1-(3-buten-1-ynyl)-1-cyclododecanol

Conditions

Conditions	Yield
With potassium hydroxide In diethyl ether at 20℃; for 6h;	80%

: 689-97-4
3-buten-1-yne

: tetracarbonyldicyclopentadienyldimolybdenum

: 137966-85-9
(Mo(C5H5)(CO)2)2(HCCCHCH2)

Conditions

Conditions	Yield
In toluene addn. of cold soln. of ligand to soln. of Mo-complex at -40°C; stirring for 18h at room temp. (N2); evapn. (vac.); extgn. complex (hexane); removing hexane; elem. anal.;	80%

BUTEN-3-YNE Chemical Properties

Details of BUTEN-3-YNE (689-97-4).
Molecular Formula: C₄H₄Molecular Weight: 52.08
Properties: Gas with acetylene-like odor. Flash p: <-5^°C, lel: 2%, uel: 100% d: 0.68 @ 1.7 atm, vap d: 1.8, bp: 2–3^°C.
Water Solubility: 1790mg/L
Boiling Point: 5.1^°C
Molecular Structure:

BUTEN-3-YNE Toxicity Data With Reference

BUTEN-3-YNE (689-97-4) has the toxicity.
1. mouse LC50 inhalation 97200mg/m3/2H (97200mg/m3) "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 119, 1982.

ihl-mus LC50:97,200 mg/m³/2H

85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,119.

BUTEN-3-YNE Consensus Reports

Reported in EPA TSCA Inventory.

BUTEN-3-YNE Safety Profile

Low toxicity by inhalation. Forms explosive peroxides with air or oxygen. Very exothermic decomposition when heated. Reacts explosively when heated with 1,3-BUTADIENE or oxygen. Reacts with SILVER nitrate to form the explosive SILVER buten-3-ynide. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES.

BUTEN-3-YNE Specification

Storage Features OF BUTEN-3-YNE (689-97-4).
Treasury ventilated low-temperature drying; closed storage; with oxidants, acids separate; easy storage a long time to prevent the peroxide generated.

Product Name

1-Buten-3-yne

Synthetic route

BUTEN-3-YNE Chemical Properties

BUTEN-3-YNE Toxicity Data With Reference

BUTEN-3-YNE Consensus Reports

BUTEN-3-YNE Safety Profile

BUTEN-3-YNE Specification

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