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42595 Lithium bis(trimethylsilyl)amide

CAS Number
4039-32-1
Synonyms
LHMDS
Lithium hexamethyldisilazide

Stock No. Size Price ($) Quantity Availability
42595-06 5g 18.40
42595-14 25g 68.60
42595-22 100g 221.00
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Lithium bis(trimethylsilyl)amide

MDL
MFCD00008261
EINECS
223-725-6

Chemical Properties

Formula
C6H18LiNSi2
Formula Weight
167.33
Form
Powder, Packaged under argon
Melting point
83-86°
Storage & Sensitivity
Moisture Sensitive. Air Sensitive. Store under Nitrogen. Ambient temperatures.
Solubility
Reacts with water.

Applications

Lithium bis(trimethylsilyl)amide is a base used in preparation of dienes and enolates. It is used to catalyze the addition of phosphine P-H bonds to carbodiimides leading to phosphaguanidines. Lithium bis(trimethylsilyl)amide is also used in a novel three-step synthesis of disubstituted 1,2,5-thiadiazoles.

Notes

Desiccate at room temperature. Store under inert gas. Keep container closed. Incompatible with air, moisture and oxidizing agents.

Literature References

Bert Y. Kimura.; Theodore L. Brown. Solvent effects on the aggregation of lithium bis(trimethylsilyl)amide. J. Organomet. Chem. 1971, 26 (1),57-67.

GHS Hazard and Precautionary Statements

Hazard Statements: H228-H314

Flammable solid. Causes severe skin burns and eye damage.

Precautionary Statements: P210-P240-P241-P260-P264b-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P370+P378q-P501c

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. In case of fire: Use CO2, dry chemical, or foam Dispose of contents/ container to an approved waste disposal plant

Other References

Beilstein
8136861
Hazard Class
4.1
Packing Group
II
Harmonized Tariff Code
2931.90
TSCA
Yes

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