2-Bromo-2-butene

Names

[ Name ]:
2-Bromo-2-butene

[Synonym ]:
3-bromo-2-butene
2-bromo-2-buten
TRANS-2-BROMO-2-BUTENE
nbsp
EINECS 236-316-2
2-BroMo-2-butene&2-Bromobut-2-ene
2-BROMO-TRANS-2-BUTENE
Bromobutenecistrans
2-Butene,2-bromo
MFCD00000141
1-Methyl-1-propenyl Bromide

Chemical & Physical Properties

[ Density]:
1.32

[ Boiling Point ]:
82-90ºC(740 torr)

[ Melting Point ]:
-115.07°C (estimate)

[ Molecular Formula ]:
C₄H₇Br

[ Molecular Weight ]:
135.00200

[ Flash Point ]:
1.1ºC

[ Exact Mass ]:
133.97300

[ LogP ]:
2.30500

[ Vapour Pressure ]:
55.2mmHg at 25°C

[ Index of Refraction ]:
n20/D 1.461(lit.)

[ Storage condition ]:
2-8°C

[ Water Solubility ]:
Not miscible or difficult to mix in water (664 mg/L 25 EST).

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS02

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H225

[ Precautionary Statements ]:
P210

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
F:Highlyflammable;

[ Risk Phrases ]:
R11

[ Safety Phrases ]:
S16

[ RIDADR ]:
UN 1993 3

[ WGK Germany ]:
3

[ Packaging Group ]:
II

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

2,3-Dibromobutane, mixture of (±) and meso
1,2-Dibromoethane
But-2-yne
Hydrogen bromide
Diphenylamine
Ammonia
Ethyl acetoacetate
2-bromo-3-iodo-butane
Ethanol

DownStream

2-Chloro-2-butene
2-bromo-3-chloro-2-butene, cis
But-2-yne
2,3-dibromobut-2-ene
tri-n-butyltin bromide
2,2,3-tribromobutane
Benzyl butyrate
(E)-benzyl 5-methylhept-5-enoate
5,7-dibromo-2,3-dimethyl-1H-pyrrolo[2,3-c]pyridine

Articles

A new process for the regiocontrolled synthesis of substituted catechols and other 1, 2-dioxygenated aromatics: conjugate addition of vinyl-, aryl-, and heteroarylcopper reagents to cyclobutenediones followed by thermal rearrangement. Gurski A and Liebskind LS.

J. Am. Chem. Soc. 115(14) , 6101-8, (1993)

Novel synthesis and structures of tris-annelated benzene donors for the electron-density elucidation of the classical Mills-Nixon effect. Rathore R, et al.

J. Am. Chem. Soc. 120(24) , 6012-18, (1998)