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Methylmagnesium bromide

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Name

Methylmagnesium bromide

EINECS 200-844-1
CAS No. 75-16-1 Density 1.035 g/mL at 25 °C
PSA 0.00000 LogP 1.42940
Solubility vigorous reaction with water Melting Point 0oC
Formula CH3BrMg Boiling Point 78-80 oC
Molecular Weight 119.244 Flash Point -20 oC
Transport Information UN 3399 4.3/PG 1 Appearance Clear brown solution when properly stored
Safety 9-16-26-45-61-36/37/39-62-43-36/37-23 Risk Codes 12-14-19-22-34-66-67-52/53-10-65-63-48/20-14/15-11
Molecular Structure Molecular Structure of 75-16-1 (METHYLMAGNESIUM BROMIDE) Hazard Symbols FlammableF,CorrosiveC
Synonyms

Methylmagnesiumbromide (6CI);Bromomethylmagnesium;

Article Data 32

Methylmagnesium bromide Synthetic route

74-95-3

1,2-dibromomethane

A

187737-37-7

propene

B

74-85-1

ethene

C

75-16-1

methylmagnesium bromide

D

27329-47-1

methylenedimagnesium dibromide

E

MgBr2

MgBr2

Conditions
ConditionsYield
With amalgamated magnesium In diethyl ether; benzene at 0℃; special sealed glass apparatus; Further byproducts given;A n/a
B n/a
C n/a
D 50%
E n/a
74-83-9

methyl bromide

75-16-1

methylmagnesium bromide

Conditions
ConditionsYield
With magnesium In diethyl ether Thermodynamic data; -ΔH(reaction);
With magnesium at -258.2℃; Product distribution; codeposition with other metals under matrix isolation conditions;
With magnesium In diethyl ether
1493-13-6

trifluorormethanesulfonic acid

E-β-(dibenzylchlorosilyl)styrene

A

75-16-1

methylmagnesium bromide

B

C15H14ClF3O3SSi

Conditions
ConditionsYield
In dichloromethane
1493-13-6

trifluorormethanesulfonic acid

E-β-(benzyldiphenylsilyl)styrene

A

75-16-1

methylmagnesium bromide

B

C20H17F3O3SSi

Conditions
ConditionsYield
In dichloromethane
74-83-9

methyl bromide

magnesium

magnesium

75-16-1

methylmagnesium bromide

Conditions
ConditionsYield
With diethyl ether
87-41-2

2-benzofuran-1(3H)-one

75-16-1

methylmagnesium bromide

55549-01-4

α,α-dimethyl-o-xylene α,α'-diol

Conditions
ConditionsYield
at -78 - 20℃;100%
In tetrahydrofuran; diethyl ether at 30℃; for 12.5h;88%
unter Wasserabgabe entsteht 1.1-Dimethyl-phthalan;
75-16-1

methylmagnesium bromide

15174-47-7

α-methyl-trans-cinnamaldehyde

87422-10-4

(E)-3-methyl-4-phenyl-but-3-en-2-ol

Conditions
ConditionsYield
Stage #1: methylmagnesium bromide; α-methyl-trans-cinnamaldehyde In tetrahydrofuran; diethyl ether at 0℃; for 0.5h; Inert atmosphere;
Stage #2: With water; ammonium chloride In tetrahydrofuran; diethyl ether
100%
With diethyl ether
51934-41-9

4-iodobenzoic acid ethyl ester

75-16-1

methylmagnesium bromide

60514-82-1

2-(4-iodophenyl)propan-2-ol

Conditions
ConditionsYield
In tetrahydrofuran at 0℃; for 72h;100%
22725-38-8

3-methoxy-5H-dibenzo[a,d]cyclohepten-5-one

75-16-1

methylmagnesium bromide

125025-18-5

3-methoxy-5-methyl-5H-dibenzocyclohepten-5-ol

Conditions
ConditionsYield
In tetrahydrofuran; diethyl ether for 6h; Ambient temperature;100%
112-45-8

10-Undecenal

75-16-1

methylmagnesium bromide

21951-49-5

dodec-11-en-2-ol

Conditions
ConditionsYield
In diethyl ether at -40℃; Grignard reaction;100%
In tetrahydrofuran at 0℃; Grignard reaction;90%
In tetrahydrofuran; diethyl ether at -40 - 25℃; for 15h; Inert atmosphere;83%

Methylmagnesium bromide Chemical Properties

MF: CH3BrMg
MW: 119.24
density  1.035 g/mL at 25 °C
Fp  77 °F
storage temp.  water-free area
Sensitive  Air & Moisture Sensitive

Methylmagnesium bromide Toxicity Data With Reference

RTECS  OM3700000

Methylmagnesium bromide Consensus Reports

Reported in EPA TSCA Inventory.

Methylmagnesium bromide Safety Profile

May ignite spontaneously in air. A very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes. See also ETHERS, MAGNESIUM COMPOUNDS, and BROMIDES.

Methylmagnesium bromide Standards and Recommendations

DOT Classification:  4.3; Label: Dangerous When Wet, Flammable Liquid
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