CAS No.1458-98-6,3-Bromo-2-methylpropene Suppliers

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Basic Information

Molecular Structure:
CAS No.:	1458-98-6
Name:	3-Bromo-2-methylpropene
Article Data:	40

Formula:	C₄H₇Br
Molecular Weight:	135.004
Synonyms:	Propene,3-bromo-2-methyl- (6CI,7CI,8CI);1-Bromo-2-methyl-2-propene;2-(Bromomethyl)propene;2-Methyl-2-propenyl bromide;2-Methyl-3-bromo-1-propene;2-Methyl-3-bromopropene;2-Methylallyl bromide;3-Bromo-2-methyl-1-propene;3-Bromo-2-methyl-1-propylene;Methallyl bromide;Methylallyl bromide;NSC 617310;b-Methallyl bromide;
EINECS:	200-003-9
Density:	1.315 g/cm³
Melting Point:	-115.07°C (estimate)
Boiling Point:	96.3 °C at 760 mmHg
Flash Point:	8.4 °C
Appearance:	clear colorless to yellow liquid
Hazard Symbols:	F,C,N
Risk Codes:	11-20/22-34-51/53
Safety:	9-16-26-29-36/37/39-45-61
Transport Information:	UN 2924 3/PG 2
PSA:	0.00000
LogP:	1.95740

Synthetic route

: 563-47-3
3-Chloro-2-methylpropene

: 1458-98-6
2-methyl-3-bromo-1-propene

Conditions

Conditions	Yield
With sodium bromide	85%
With lithium bromide In acetone for 12h; Finkelstein reaction; Inert atmosphere;	21%
With acetone; sodium bromide
With methanol; sodium bromide
With sodium bromide

: 513-42-8
3-hydroxy-2-methyl-1-propene

: 1458-98-6
2-methyl-3-bromo-1-propene

Conditions

Conditions	Yield
With phosphorus tribromide In pyridine 1.) -20 deg C, 4 h; 2.) room temperature, 2 h;	55%
With phosphorus tribromide at 30℃; for 2h;	55%
With phosphorus tribromide at 30℃; Inert atmosphere;	50%

: sodium tricarbonylnitrosylferrate(-1)

A: 1458-98-6
2-methyl-3-bromo-1-propene

B: (2-methyl-π-allyl)dicarbonylnitrosyl iron

Conditions

Conditions	Yield
In diethyl ether 2 h at 25°C under Ar or N2; chromy on Al2O3 with pentane, distn.;	A n/a B 55%
In diethyl ether 2 h at 25°C under Ar or N2; chromy on Al2O3 with pentane, distn.;	A n/a B 55%

: 594-34-3
1,2-dibromo-2-methyl-propane

A: 1458-98-6
2-methyl-3-bromo-1-propene

B: 507-19-7
t-butyl bromide

Conditions

Conditions	Yield
With copper at 390 - 400℃;

: 631-28-7
1,2,3-tribromo-2-methylpropane

: 1458-98-6
2-methyl-3-bromo-1-propene

Conditions

Conditions	Yield
With methanol; amalgamated zinc

: 504-61-0
(E)-but-2-enol

A: 1458-98-6
2-methyl-3-bromo-1-propene

B: 4784-77-4, 29576-14-5, 39616-19-8
(Z)-crotyl bromide

C: 4784-77-4, 39616-19-8, 29576-14-5
(E)-1-Bromo-2-butene

Conditions

Conditions	Yield
With phosphorus tribromide In dichloromethane at 0 - 5℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

...Expand

: 115-11-7
isobutene

A: 1458-98-6
2-methyl-3-bromo-1-propene

B: 85925-70-8
N-(2-bromo-2-methyl-1-propyl)succinimide

Conditions

Conditions	Yield
With N-Bromosuccinimide In dichloromethane at 15℃; Irradiation; competition reaction with 3,3-dimethyl-1-butene and methylene chloride;

: 67-56-1
methanol

: 563-47-3
3-Chloro-2-methylpropene

sodium bromide: sodium bromide

: 1458-98-6
2-methyl-3-bromo-1-propene

...Expand

: 67-56-1
methanol

: 563-47-3
3-Chloro-2-methylpropene

sodium bromide: sodium bromide

A: 1458-98-6
2-methyl-3-bromo-1-propene

B: 81112-30-3
1,2-dimethoxy-2-methylpropane

C: 22418-49-1
methallyl methyl ether

D: 41632-89-7
isobutyraldehyde dimethyl acetal

...Expand

β-methyl-allyl alcohol: β-methyl-allyl alcohol

: 1458-98-6
2-methyl-3-bromo-1-propene

Conditions

Conditions	Yield
With pyridine; phosphorus tribromide

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Specification

The 3-Bromo-2-methylpropene, with the CAS registry number 1458-98-6, is also known as Methylallyl bromide. It belongs to the product categories of Aliphatics; Halides. Its EINECS number is 207-444-6. This chemical's molecular formula is C₄H₇Br and molecular weight is 135.00. What's more, its systematic name is 3-bromo-2-methylprop-1-ene. It is stable at common pressure and temperature, and it should be sealed and stored in a cool, ventilated and dry place. Moreover, it should be protected from light.

Physical properties of 3-Bromo-2-methylpropene are: (1)ACD/LogP: 2.34; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 0; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 1; (6)Index of Refraction: 1.455; (7)Molar Refractivity: 27.88 cm³; (8)Molar Volume: 102.6 cm³; (9)Polarizability: 11.05×10^-24cm³; (10)Surface Tension: 24.6 dyne/cm; (11)Density: 1.315 g/cm³; (12)Flash Point: 8.4 °C; (13)Enthalpy of Vaporization: 32.19 kJ/mol; (14)Boiling Point: 96.3 °C at 760 mmHg; (15)Vapour Pressure: 50.1 mmHg at 25°C.

Preparation of 3-Bromo-2-methylpropene: this chemical can be prepared by 2-methyl-prop-2-en-1-ol at the temperature of 30 °C. This reaction will need reagent PBr₃ with the reaction time of 2 hours. The yield is about 55%.

3-Bromo-2-methylpropene can be prepared by 2-methyl-prop-2-en-1-ol at the temperature of 30 °C

Uses of 3-Bromo-2-methylpropene: it can be used to produce 4-butyl-2-methyl-oct-1-en-4-ol at the temperature of 50 °C. It will need reagent Mn and solvent ethyl acetate. The yield is about 87%.

3-Bromo-2-methylpropene can be used to produce 4-butyl-2-methyl-oct-1-en-4-ol at the temperature of 50 °C

When you are using this chemical, please be cautious about it as the following:
This chemical is highly flammable, so you should keep it away from sources of ignition - No smoking. It is harmful by inhalation and if swallowed, and it can cause burns. The substance is toxic to aquatic organisms as it may cause long-term adverse effects in the aquatic environment. You should keep the container in a well-ventilated place and not empty it into drains. In case of accident or if you feel unwell, you must seek medical advice immediately (show the label where possible). You must avoid releasing to the environment just refering to special instructions/safety data sheet.

You can still convert the following datas into molecular structure:
(1)SMILES: BrCC(=C)\C
(2)Std. InChI: InChI=1S/C4H7Br/c1-4(2)3-5/h1,3H2,2H3
(3)Std. InChIKey: USEGQJLHQSTGHW-UHFFFAOYSA-N