79887-09-5

Basic information

• Product Name: 1-Butyl-4-eth-1-ynylbenzene
• Synonyms: BENZENE, 1-BUTYL-4-ETHYNYL-;BUTTPARK 145\20-77;4-BUTYLPHENYLACETYLENE;1-BUTYL-4-ETH-1-YNYLBENZENE;1-BUTYL-4-ETHYNYLBENZENE;(P-BUTYLPHENYL)ACETYLENE;79887-09-05;1-Eth-1-ynyl-4-butylbenzene
• CAS NO: 79887-09-5
• Molecular Formula: C₁₂H₁₄
• Molecular Weight: 158.24
• EINECS: 628-381-4
• Product Categories: Aromatic Compounds;Liquid Crystal intermediates;Miscellaneous;Phenyls & Phenyl-Het;Acetylenic Hydrocarbons having Benzene Ring;Acetylenes;Phenyls & Phenyl-Het;Alkynes;Organic Building Blocks;Terminal;Building Blocks;Chemical Synthesis;Organic Building Blocks;OLED materials,pharm chemical,electronic
• Mol File: 79887-09-5.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 70-71°C 3mm
• Flash Point: 215 °F
• Appearance: colorless to yellow liquid
• Density: 0.906 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.131mmHg at 25°C
• Refractive Index: n20/D 1.527(lit.)
• Storage Temp.: 0-10°C
• CAS DataBase Reference: 1-Butyl-4-eth-1-ynylbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Butyl-4-eth-1-ynylbenzene(79887-09-5)
• EPA Substance Registry System: 1-Butyl-4-eth-1-ynylbenzene(79887-09-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39-36/37/39
• WGK Germany: 3
• Hazardous Substances Data: 79887-09-5(Hazardous Substances Data)

Usage

Chemical Properties

Light yellow liquid

Uses

4-Butylphenylacetylene is a useful research chemical, an intermediates of Liquid Crystals.

InChI:InChI=1/C12H14/c1-3-5-6-12-9-7-11(4-2)8-10-12/h2,7-10H,3,5-6H2,1H3

Upstream product

• 202524-78-5 1-(4-butylphenyl)-2-trimethylsilylacetylene 
• 20651-67-6 4-butyliodobenzene 
• 1066-54-2 trimethylsilylacetylene 
• 41492-05-1 p-bromobutylbenzene 
• 155906-12-0 3-methyl-1-(4'-butylphenyl)-1-butyne-3-ol 
• 1200-14-2 4-(n-butyl)benzaldehyde 

Downstream Products

• 132464-65-4 2-[(4-butylphenyl)ethynyl]-4-(2-chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine 
• 69374-83-0 1,4-bis(4-n-butylphenyl)buta-1,3-diyne 
• 655251-27-7 4-(4-Butyl-phenylethynyl)-biphenyl 
• 843676-54-0 6-[(4-butylphenyl)ethynyl]nicotinaldehyde 
• 843676-49-3 4-[(4-butylphenyl)ethynyl]-2-fluorobenzaldehyde 
• 843675-75-2 4-((4-butylphenyl)ethynyl)benzaldehyde 
• 866931-53-5 methyl 4-[(4-butylphenyl)ethynyl]benzoate 
• 866932-70-9 4-((4-butylphenyl)ethynyl)aniline 
• 866932-91-4 methyl 5-[({4-[(4-butylphenyl)ethynyl]phenyl}sulfonyl)(hexyl)amino]-2-fluorobenzoate 
• 866932-98-1 methyl 5-{[({4-[(4-butylphenyl)ethynyl]phenyl}sulfonyl)(hexyl)amino]methyl}-2-fluorobenzoate 
• 369363-57-5 4-(4-butylphenyl)-1H-1,2,3-triazole 
• 1027340-20-0 2-((4-butylphenyl)ethynyl)aniline 

Relevant articles and documents

BF3·OEt2-Promoted Propargyl Alcohol Rearrangement/[1,5]-Hydride Transfer/Cyclization Cascade Affording Tetrahydroquinolines

An efficient BF3·OEt2-mediated propargyl alcohol rearrangement/[1,5]-hydride transfer/cyclization cascade for the synthesis of tetrahydroquinoline derivatives has been described. The substituents adjacent to triple bonds play an important role in the formation of ketones (via [1,3]-hydroxyl shift) or alkenyl fluorides which are products of formal trans-carbofluorination of internal alkynes. This method provides a rapid access to diverse heterocycles in moderate to excellent yields.

Reaction Selectivity in On-Surface Chemistry by Surface Coverage Control—Alkyne Dimerization versus Alkyne Trimerization

This work reports the influence of molecular coverage in on-surface C?C-bond formation on reaction outcome. 6-Ethynyl-2-naphthoic acid (ENA) was chosen as organic component and Ag(111) as substrate. The alkyne moiety in ENA can either react by dimerizatio

High birefringence phenylacetylene liquid crystals with low viscosity

We have synthesized new high Δ n 3-ring phenylacetylene(3PA) liquid crystals which have substituent groups with core center phenyl ring and investigated the effects of substitution on physical properties. Nematic range and viscosity were improved remarkab