| Identification | More | [Name]
LITHIUM METHOXIDE | [CAS]
865-34-9 | [Synonyms]
LITHIUMMETHOXID
LITHIUM METHOXIDE
LITHIUM METHYLATE
methanol,lithiumsalt
lithium methanolate
LITHIUM METHOXIDE, 1.0M SOLUTION IN METH YL ALCOHOL
LITHIUM METHYLATE SOLUTION, ~4.6 % IN ME THANOL
LITHIUM METHYLATE SOLUTION, ~10% IN METH ANOL
Lithium methoxide, 10% in methanol
Lithiummethoxide
96.8%
Lithium methoxide, pure, 99%
Lithiummethoxide,min.95%
lithium methoxide solution
Lithium Methoxide pure 10% solution in Methanol
Lithium methoxide, 98+%
LITHIUM METHOXIDE (9-10% in methanol)
Lithium methoxide, 99%, pure
Lithium methoxide, 10% solution in methanol, pure
Lithium methoxide, min. 95%
Lithium methoxide10% solution in methanolAcroSeal§3pure | [EINECS(EC#)]
212-737-7 | [Molecular Formula]
CH3LiO | [MDL Number]
MFCD00036357 | [Molecular Weight]
37.97 | [MOL File]
865-34-9.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [Melting point ]
500°C | [Boiling point ]
64.6 °C | [density ]
0.85 g/mL at 20 °C
| [Fp ]
52 °F
| [storage temp. ]
Flammables area | [solubility ]
Soluble in methanol. | [form ]
powder
| [color ]
White | [Specific Gravity]
0.85 | [Stability:]
Stable, but reacts violently with water. Highly flammable. Store under dry inert gas. | [Hydrolytic Sensitivity]
7: reacts slowly with moisture/water | [Sensitive ]
Moisture Sensitive | [BRN ]
3552389 | [CAS DataBase Reference]
865-34-9(CAS DataBase Reference) | [EPA Substance Registry System]
Methanol, lithium salt (865-34-9) |
| Questions And Answer | Back Directory | [Preparation]
Lithium methoxide (3 cm3, 3mmol of 1.0M solution in methanol) was added to (11) (1.0 g, 2.8 mmol) in methanol (15 cm3) at 0 °C, with stirring, under an atmosphere of nitrogen. The mixture was stirred at room temperature for 67 h, then water (20 cm3) was added and the mixture extracted into dichloromethane (DCM). The DCM solution was dried (MgS04) and evaporated giving a solid ( 1.1 g) shown to consist of 4- methoxy-3,5-difluoro-2,6-dibromopyridine (22g) ( 19% ), 2,6-dibromo-4,5-dimethoxy-3- fluoropyridine (22h) (5%), (23b) (39% by comparison with authentic sample) and (23a) (36%). Neither column chromatography (eluting DCM and petrol 7: 3) nor preparative scale GLC ( 10% SE30, 140 oC) gave adequate separation of the products. However, a carbon nmr spectrum and GCMS of a mixture of (22g) and (23b) was obtained and the carbon spectra was assigned by comparison with that of (23b ). |
| Safety Data | Back Directory | [Hazard Codes ]
F,T,C | [Risk Statements ]
R14:Reacts violently with water.
R17:Spontaneously flammable in air.
R34:Causes burns.
R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
R36/38:Irritating to eyes and skin .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable. | [Safety Statements ]
S8:Keep container dry .
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add-Never use water) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [RIDADR ]
UN 3274 3/PG 2
| [WGK Germany ]
3
| [F ]
3-10-23 | [TSCA ]
Yes | [HazardClass ]
4.2 | [PackingGroup ]
II | [HS Code ]
29051990 |
| Hazard Information | Back Directory | [Chemical Properties]
white powder | [Uses]
Employed in sol-gel synthesis of lithium borophosphates. | [Uses]
Lithium methoxide is used in sol-gel synthesis of lithium borophosphates. It is also useful for deprotonation reactions in organic synthesis. Further, it serves as a mild base in organic synthesis especially in transesterifications. | [Purification Methods]
The most probable impurity is LiOH due to hydrolysis by moisture. It is important to keep the sample dry. It can be dried by keeping in a vacuum at 60-80o under dry N2 using an oil pump for a few hours. Store it under N2 in the cold. It should not have bands above 3000cm-1, IR has 1078, 2790, 2840 and 2930cm-1 in KBr. [Suebold J Org Chem 21 1561956, Beilstein 1 IV 1220, 1241.] |
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