5009-11-0

Basic information

• Product Name: 1-HEXEN-4-YNE
• Synonyms: 1-HEXEN-4-YNE
• CAS NO: 5009-11-0
• Molecular Formula: C₆H₈
• Molecular Weight: 80.13
• Mol File: 5009-11-0.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 80.5°C (estimate)
• Flash Point: -29.046 °C
• Appearance: /
• Density: 0.7670
• Refractive Index: 1.4460
• CAS DataBase Reference: 1-HEXEN-4-YNE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-HEXEN-4-YNE(5009-11-0)
• EPA Substance Registry System: 1-HEXEN-4-YNE(5009-11-0)

Safety Data

• Hazardous Substances Data: 5009-11-0(Hazardous Substances Data)

Usage

Type of compound

Alkyne

Triple bond position

Terminal at the 4th carbon atom of the hexene chain

Usage

Organic synthesis and chemical reactions (building block for various industrial applications)

Flammability

Flammable

Health hazards

Harmful if inhaled or ingested

Handling and storage

Requires caution

Primary use setting

Controlled laboratory settings by trained professionals

Upstream product

• 928-93-8 4-hexyn-1-ol 
• 106-95-6 allyl bromide 
• 74-99-7 prop-1-yne 
• 81198-98-3 cyclopropylidene-11 methyl-12 ethano-9,10 dihydro-9,10 anthracene 
• 16466-97-0 1-propynylmagnesium bromide 
• 925-90-6 ethylmagnesium bromide 
• 101567-52-6 acetic acid hex-4-ynyl ester 

Downstream Products

• 109-49-9 5-Hexen-2-one 
• 42842-72-8 trans-1,1-Diphenyl-3-hepten-5-in 
• 42842-71-7 cis-1,1-Diphenyl-3-hepten-5-in 
• 42842-69-3 1,1-Diphenyl-2-(2-butinyl)cyclopropan 
• 75032-38-1 1-allyl-2-methyl-3-phenylindene 
• 42842-70-6 1,1-Diphenyl-2-methyl-2,3,5-hexatrien 
• 98134-28-2 2,3,5,6-tetrabromo-hex-2-ene 

Relevant articles and documents

SYNTHESIS OF PHEROMONES AND RELATED MATERIALS VIA OLEFIN METATHESIS

Methods for preparation of olefins, including 8- and 11-unsaturated monoenes and polyenes, via transition metathesis-based synthetic routes are described. Metathesis reactions in the methods are catalyzed by transition metal catalysts including tungsten-, molybdenum-, and ruthenium-based catalysts. The olefins include insect pheromones useful in a number of agricultural applications.

Reactions retrodieniques. XII. Cycloreversions et rearrangements d'ethano-9,10 dihydro-9-10 anthracenes cyclopropaniques

Five Diels-Alder adducts of anthracene, containing respectively the spiro cyclopropane (3), vinylcyclopropane (4), allenylcyclopropane (5) and methylenecyclopropane systems (6 and 7) have been synthesized and their flash thermolytic behaviour investigated.Whereas the adduct 3 undergoes exclusively a retro-Diels-Alder cleavage leading to methylenecyclopropane, two types of rearrangements are observed, owing to their structure, as predominant reaction paths with compound 4-7 : the adducts 4 and 5, possessing a vinylcyclopropane unit, almost only rearrange into the corresponding cyclopentene 14 and methylenecyclopentene 15, respectively; on the other hand, the methylenecyclopropene adducts 6 and 7 undergo a more unexpected rearrangement of the anthracenic framework leading to the polycyclic methylenecyclobutanes 19 and 20.The structure proposed for 19 follows unambiguously from its spectral properties and is confirmed by its ozonolysis yielding the cyclobutanone 21.In the same way, the retro-Diels-Alder cleavage of the adducts 4-7, also observed as a minor reaction path (10-40percent), is followed by the isomerization of the firstly obtained cyclopropanic cumulenes, leading to 1,4-hexadiyne (from 5), dimethylenecyclopropane (from 6), or 1-hexen-4-yne and ethylidenemethylenecyclopropane (from 7).