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494178

1-Bromo-2-ethynylbenzene

95%

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About This Item

Linear Formula:
HC≡CC6H4Br
CAS Number:
766-46-1
Molecular Weight:
181.03
NACRES:
NA.22
PubChem Substance ID:
24872882
UNSPSC Code:
12352100
MDL number:
MFCD01863358
Assay:
95%
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Quality Segment

assay

95%

refractive index

n20/D 1.595 (lit.)

bp

92-93 °C/20 mmHg (lit.)

density

1.443 g/mL at 25 °C (lit.)

functional group

bromo

SMILES string

Brc1ccccc1C#C

InChI

1S/C8H5Br/c1-2-7-5-3-4-6-8(7)9/h1,3-6H

InChI key

RVDOYUFNRDGYGU-UHFFFAOYSA-N

General description

1-Bromo-2-ethynylbenzene (BEB) is a haloalkyne. It undergoes Sonogashira coupling with methyl 2-iodobenzoate to form bromo tolane derivative.

Application

1-Bromo-2-ethynylbenzene may be used in the synthesis of 1-(2-bromophenyl)-2-(dibenzo[b,d]thiophen-4-yl)ethanone.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

145.4 °F - closed cup

Flash Point (°C)

63 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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