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Sigma-Aldrich

β-Bromostyrene

97%

Synonym(s):

beta-Bromostyrene, 1-Bromo-2-phenylethylene

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5 G
$102.00

About This Item

Linear Formula:
C6H5CH=CHBr
CAS Number:
Molecular Weight:
183.05
Beilstein:
2038495
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

$102.00


Estimated to ship on09 April 2025


Request a Bulk Order

Quality Level

Assay

97%

form

liquid

refractive index

n20/D 1.607 (lit.)

bp

110-112 °C/20 mmHg (lit.)

mp

7 °C (lit.)

density

1.427 g/mL at 25 °C (lit.)

functional group

bromo
phenyl

storage temp.

2-8°C

SMILES string

Br\C=C\c1ccccc1

InChI

1S/C8H7Br/c9-7-6-8-4-2-1-3-5-8/h1-7H/b7-6+

InChI key

YMOONIIMQBGTDU-VOTSOKGWSA-N

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General description

β-Bromostyrene is an α,β-unsaturated aromatic halide. It can be synthesized by catalytic Hunsdiecker reaction (CHR) of cinnamic acid.[1] It is commonly utilized as a precursor for preparing substituted alkenes, corresponding acetylenes and also in the total synthesis of natural compounds and antibiotics.[2]

Application

β-Bromostyrene was used in the one-pot method for the preparation of cinnamonitriles.[3] It was also used in the preparation of pure ethyl Z- and E-α,α-difluoro-4-phenyl-3-butenoate[4] and 1,3-diphenyl-1-butene.[5] It may be used in the synthesis of β-tert-butylstyrene via cross coupling reaction with tert-butylmagnesium chloride in the presence of dichloro[1,1′-bis(diphenylphosphino)ferrocene]nickel(II) catalyst.[6] It may also be used to prepare γ-but-2-enolactone by reacting with nickel carbonyl in the presence of alkynes.[7]

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

215.6 °F - closed cup

Flash Point(C)

102 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Customers Also Viewed

Cross-Coupling of Tertiary Alkyl Grignard Reagents with β-Bromostyrene Catalyzed by Dichloro[1,1'-bis(diphenylphosphino)ferrocene]nickel (II).
Hayashi T, et al.
Chemistry Letters (Jpn), 9(6), 767-768 (1980)
Enantioselective Preparation of C2-Symmetrical Ferrocenyl Ligands for Asymmetric Catalysis.
Schwink L and Knochel P.
Chemistry (Weinheim An Der Bergstrasse, Germany), 4(5), 950-968 (1998)
The reaction of ?-bromostyrene with nickel carbonyl in the presence of alkynes.
Ryang M, et al.
Journal of Organometallic Chemistry, 46(2), 375-377 (1972)
Catalytic Hunsdiecker Reaction and One-Pot Catalytic Hunsdiecker-Heck Strategy: Synthesis of α, β-Unsaturated Aromatic Halides, α-(Dihalomethyl) benzenemethanols, 5-Aryl-2, 4-pentadienoic acids, Dienoates and Dienamides.
Naskar D and Roy S.
Tetrahedron, 56(10), 1369-1377 (2000)
Practical one-pot conversion of aryl bromides and ?-bromostyrenes into aromatic nitriles and cinnamonitriles.
Ishii G, et al.
Tetrahedron, 69(5), 1462-1469 (2013)

Questions

1–2 of 2 Questions  
  1. WHAT IS THE STEREOCHEMISTRY OF THIS COMPOUND?

    1 answer
    1. The entire product is likely planar due to the conjugated effect between the aromatic ring and C=C double bond.

      Helpful?

  2. is there any possibility for decreacing the purity of the compound with out innert gases storage???

    1 answer
    1. Yes, the purity of may decline over time if exposed to atmospheric oxygen. Storing the compound under inert gas, such as nitrogen or argon, prevents decomposition. Please see the link below to review additional information regarding the breakdown reaction published to PubChem:
      https://pubchem.ncbi.nlm.nih.gov/compound/5314126#section=Non-Human-Toxicity-Values

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