Skip to Content
Merck
All Photos(1)

Documents

429538

Sigma-Aldrich

1-Bromo-2-pentyne

97%

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
C2H5C≡CCH2Br
CAS Number:
Molecular Weight:
147.01
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

97%

form

liquid

refractive index

n20/D 1.498 (lit.)

bp

93-94 °C/113 mmHg (lit.)

density

1.438 g/mL at 25 °C (lit.)

SMILES string

CCC#CCBr

InChI

1S/C5H7Br/c1-2-3-4-5-6/h2,5H2,1H3

InChI key

VDHGRVFJBGRHMD-UHFFFAOYSA-N

General description

1-Bromo-2-pentyne is an halogenated hydrocarbon.

Application

1-Bromo-2-pentyne may be employed for the following syntheses:
  • stereochemically restricted lactone-type analogs of jasmonic acids, 5-oxa-7-epi-jasmonic acid and 5-oxa-jasmonic acid
  • 4,7-decadienal, 4,7-tridecadienal, 5,8-tetradecadienal and 6,9-dodecadienal (all-cis)
  • 5-ethyl-4-methylene-6-phenyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione

Pictograms

FlameExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

105.8 °F - closed cup

Flash Point(C)

41 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Synthesis of Cyclic Compounds Having exo-Methylene Groups through the Diels-Alder Reactions of Vinyl Allenes Obtained from Propargyl Bromide and Indium.
Lee K and Lee PH.
Bull. Korean Chem. Soc., 29(2), 487-487 (2008)
Synthesis of some aliphatic dienals.
Ward JP and Van Dorp DA.
Rec. Trav. Chim., 88(2), 177-184 (1969)
H Toshima et al.
Bioscience, biotechnology, and biochemistry, 64(9), 1988-1992 (2000-10-31)
5-Oxa-7-epi-jasmonic acid and 5-oxa-jasmonic acid, which are stereochemically restricted lactone-type analogues of jasmonic acids, were synthesized via three-component coupling of 2(5H)-furanone, tert-butyl acetate and 1-bromo-2-pentyne. After acidic deprotection of the tert-butyl esters, the (Z)-olefin was introduced by catalytic partial reduction

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service