ChemicalBook Product Catalog Chemical Reagents Organic reagents Alkyne 1-Hexyne

1-Hexyne

1-Hexyne Basic information
Product Name:1-Hexyne
Synonyms:N-BUTYLACETYLENE;Butylacetylene;C4H9CequivCH;Hex-1-yne;Hexyne;1-HEXYNE;HEXYNE(1-);Butyl acetyne
CAS:693-02-7
MF:C6H10
MW:82.14
EINECS:211-736-9
Product Categories:Miscellaneous;Acetylenes;Acetylenic Hydrocarbons;Alkynes;Organic Building Blocks;Terminal
Mol File:693-02-7.mol
1-Hexyne Structure
1-Hexyne Chemical Properties
Melting point -132 °C
Boiling point 71-72 °C(lit.)
density 0.715 g/mL at 25 °C(lit.)
vapor pressure 253 mm Hg ( 37.7 °C)
refractive index n20/D 1.399(lit.)
Fp −6 °F
storage temp. Store at +2°C to +8°C.
solubility 0.36g/l (experimental)
form Liquid
color Clear colorless
Specific Gravity0.715
Water Solubility Miscible with organic solvents. Immiscible with water.
BRN 635687
Stability:Stable. Incompatible with strong oxidizing agents. Highly flammable - readily forms explosive mixtures with air.
CAS DataBase Reference693-02-7(CAS DataBase Reference)
NIST Chemistry Reference1-Hexyne(693-02-7)
EPA Substance Registry System1-Hexyne (693-02-7)
Safety Information
Hazard Codes F,Xn,Xi
Risk Statements 11-36/37/38-65
Safety Statements 16-26-36-62-9-33-7/9
RIDADR UN 3295 3/PG 2
WGK Germany 3
RTECS MQ9691000
F 10-23
Autoignition Temperature263 °C
Hazard Note Irritant
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29012980
MSDS Information
ProviderLanguage
1-Hexyne English
SigmaAldrich English
ACROS English
ALFA English
1-Hexyne Usage And Synthesis
Chemical Propertiescolourless liquid
Uses1-Hexyne is used in the preparation of tricyclic isoindolinone scaffold by undergoing hydrozirconation and ring-closing metathesis. It is used to prepare trans-1,2-bis(5-thianthreniumyl)alkene tetrafluoroborate by reacting with thianthrene cation radical tetrafluoroborate.
DefinitionChEBI: 1-hexyne is a terminal acetylenic compound that is hexane carrying a triple bond at position 1. It is a terminal acetylenic compound, an alkyne and a volatile organic compound.
General Description1-Hexyne reacted with thianthrene cation radical tetrafluoroborate to form trans-1,2-bis(5-thianthreniumyl)alkene tetrafluoroborate.
HazardProbably flammable.
Purification MethodsDistil it from NaBH4 to remove peroxides. Stand over sodium for 24hours, then fractionally distil it under reduced pressure. Also dry it by repeated vacuum transfer into freshly activated 4A molecular sieves, followed by vacuum transfer onto Na/K alloy and stirring for 1hour before fractionally distilling. [Beilstein 1 IV 1006.]
1-Hexyne Preparation Products And Raw materials
Preparation ProductsPrallethrin-->4-Hex-1-ynylbenzaldehyde-->(Z)-2-Hepten-1-ol-->Silane, trimethyl-1-octyn-1-yl--->5-Decanone, 6-methyl--->7,9-Hexadecadiyne-->2-METHYL-2-HEPTANOL-->CIS-2-HEXENE-->CIS-11-HEXADECENAL-->11-HEXADECYN-1-OL-->2,7-DIMETHYL-3,5-OCTADIYN-2,7-DIOL-->Dichloroiodomethane
1,8-NONADIYNE 3,5-DIMETHYL-1-HEXYN-3-OL Ethynyl estradiol 1-Ethynyl-1-cyclohexanol 1,7-OCTADIYNE 1-DODECYNE 1-Heptyne 1-ETHYNYLCYCLOHEXENE 2,4,7,9-Tetramethyl-5-decyne-4,7-diol 1-ETHYNYLCYCLOHEXYLAMINE 3-Nonyn-1-ol 2-OCTYNOIC ACID 5-Hexyne-1-nitrile 1-Hexyne CYCLOHEXYLACETYLENE 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether 5-HEXYN-1-OL 1-ETHYNYLCYCLOPENTANOL
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