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593702

Sigma-Aldrich

Lithium aluminum hydride solution

2.0 M in THF

Synonym(s):

LAH, Lithium alanate, Lithium tetrahydroaluminate

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About This Item

Linear Formula:
LiAlH4
CAS Number:
16853-85-3
Molecular Weight:
37.95
MDL number:
MFCD00011075
UNSPSC Code:
26111700
PubChem Substance ID:
24881465
NACRES:
NA.22

Quality Level

200

reaction suitability

reagent type: reductant

concentration

2.0 M in THF

density

0.906 g/mL at 25 °C

storage temp.

2-30°C

SMILES string

[Li+].[AlH4-]

InChI

1S/Al.Li.4H/q-1;+1;;;;

InChI key

OCZDCIYGECBNKL-UHFFFAOYSA-N

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Application

Reactant or reagent for:
  • The preparation of thermoplastic polyester polyamides from oleic acid
  • Lithium-polymer batteries
  • Hydrodefluorination of gem-difluoromethylene derivatives
  • Asymmetric aldol reactions
  • Synthesis of Li-Al-N-H composites with hydrogen absorption / desorption properties

LAH is a powerful reducing agent for many different reduction reactions such as that of ketones to alcohols

Packaging

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A - STOT SE 3 - Water-react 1

Target Organs

Central nervous system, Respiratory system

Supplementary Hazards

EUH019

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 3

Flash Point(F)

-13.0 °F - closed cup

Flash Point(C)

-25 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Damián E Bikiel et al.
Inorganic chemistry, 44(15), 5286-5292 (2005-07-19)
The nature of the solute species present in ethereal solutions of LiAlH(4) is of crucial importance for understanding the mechanisms for the reduction of ketones and other functional groups by LiAlH(4). We have employed a combination of theoretical and experimental
Diastereoselective reductive amination of aryl trifluoromethyl ketones and alpha-amino esters.
Greg Hughes et al.
Angewandte Chemie (International ed. in English), 46(11), 1839-1842 (2007-04-24)
Krishnananda Samanta et al.
Bioorganic & medicinal chemistry letters, 20(1), 283-287 (2009-11-26)
A series of new benzoxazepine derivatives substituted with different alkoxy and aryloxy group were synthesized comprising synthetic steps of Mitsunobu reaction, lithium aluminum hydride (LAH) reduction, followed by debenzylation and finally intramolecular Mitsunobu cyclization. The new benzoxazepines specifically inhibited growth
Takahisa Nakane et al.
Chemical & pharmaceutical bulletin, 50(9), 1273-1275 (2002-09-19)
Two new migrated hopane triterpenoids, viz. 4alpha-hydroxyfilican-3-one and fern-9(11)-en-12beta-ol, and olean-18-en-3-one and olean-12-en-3-one as the first example of oleanane compounds from Adiantum ferns were isolated along with many other known triterpenoids from Adiantum capillus-veneris of China and Egypt. Their structures
Matthias D'hooghe et al.
Organic & biomolecular chemistry, 6(7), 1190-1196 (2008-03-26)
The reactivity of 4-aryl-1-(2-chloroethyl)azetidin-2-ones and 4-aryl-1-(3-bromopropyl)azetidin-2-ones with regard to lithium aluminium hydride has been evaluated for the first time. 4-Aryl-1-(2-chloroethyl)azetidin-2-ones were transformed into novel 1-(1-aryl-3-hydroxypropyl)aziridines through an unprecedented conversion of beta-lactams into 2,3-unsubstituted aziridine derivatives. Unexpectedly, 4-aryl-1-(3-bromopropyl)azetidin-2-ones underwent dehalogenation towards
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