ChemicalBook > CAS DataBase List > Lithium tri-tert-butoxyaluminum hydride

Lithium tri-tert-butoxyaluminum hydride

Product Name: Lithium tri-tert-butoxyaluminum hydride
CAS No.: 17476-04-9
Chemical Name: Lithium tri-tert-butoxyaluminum hydride
Synonyms: LTBA;LTTBA;Lithium tri-t-butoxyaluminium Hydride;LITHIUM TRI-TERT-BUTOXYALUMINOHYDRIDE;LITHIUM TRI-T-BUTOXYALUMINOHYDRIDE;LITHIUM ALUMINUM-TRI-TERT-BUTOXYHYDRIDE;LITHIUM TRI-TERT-BUTOXYALUMINIUM HYDRIDE;uminohydride;Lithium tri-tert-but;ithium tri-tert-butoxyaL
CBNumber: CB0739959
Molecular Formula: C12H28AlO3.Li
Formula Weight: 254.27
MOL File: 17476-04-9.mol

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Lithium tri-tert-butoxyaluminum hydride Property

Melting point:: 300-319 °C (dec.) (lit.)
Boiling point:: 66°C (THF)
Density: 0.942 g/mL at 25 °C
Flash point:: 95 °F
storage temp.: 2-8°C
solubility: It is soluble in organic solvents at low temperatures.
form: Solution
color: Clear to slightly turbid colorless
Water Solubility: Reacts with water.
Sensitive: Air & Moisture Sensitive
BRN: 5796791
Exposure limits: ACGIH: TWA 50 ppm; STEL 100 ppm (Skin)
OSHA: TWA 200 ppm(590 mg/m3)
NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3)
Stability:: Stable. Incompatible with alcohols. Reacts violently with water. Highly flammable.
InChIKey: BYBIDFZFKATBFH-UHFFFAOYSA-N
CAS DataBase Reference: 17476-04-9(CAS DataBase Reference)
EPA Substance Registry System: Aluminate(1-), hydrotris(2-methyl-2-propanolato)-, lithium, (T-4)- (17476-04-9)

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Safety

Hazard Codes: F,C,T
Risk Statements: 60-61-10-14/15-19-34-14-11-15-35-40-37
Safety Statements: 53-26-36/37/39-43-45-16-43B-6A
RIDADR: UN 3399 4.3/PG 1
WGK Germany: 1
RTECS: OJ5585000
F: 10-21
TSCA: Yes
HazardClass: 4.3
PackingGroup: II
HS Code: 29055900

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H260In contact with water releases flammable gases which may ignite spontaneously

H314Causes severe skin burns and eye damage

Precautionary statements

P223Keep away from any possible contact with water, because of violent reaction and possible flash fire.

P231+P232Handle under inert gas. Protect from moisture.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 241814
Product name: Lithium tri-tert-butoxyaluminum hydride solution
Purity: 1.0 M in THF
Packaging: 100ml
Price: $219
Updated: 2025/07/31

Sigma-Aldrich

Product number: 241814
Product name: Lithium tri-tert-butoxyaluminum hydride solution
Purity: 1.0 M in THF
Packaging: 800ml
Price: $730
Updated: 2025/07/31

TCI Chemical

Product number: L0159
Product name: Lithium Tri-tert-butoxyaluminum Hydride (ca. 30% in Tetrahydrofuran, ca. 1.0mol/L)
Packaging: 100mL
Price: $117
Updated: 2021/12/16

Strem Chemicals

Product number: 03-4850
Product name: Lithium tri-t-butoxyaluminohydride, ~1.0M in THF
Packaging: 0.1mole
Price: $226
Updated: 2024/03/01

Strem Chemicals

Product number: 03-4850
Product name: Lithium tri-t-butoxyaluminohydride, ~1.0M in THF
Packaging: 0.5mole
Price: $853
Updated: 2024/03/01

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Lithium tri-tert-butoxyaluminum hydride Chemical Properties,Usage,Production

Chemical Properties

Lithium tri-tert-butoxyaluminum hydride is a white powder with a melting point of 319°C, which is sublimated under vacuum at 280°C. It is soluble in ethylene glycol dimethyl ether, diglyme and tetrahydrofuran, and slightly soluble in ether. Stable in dry air, hydrolyzed slowly in moist air. Lithium tri-tert-butoxyaluminum hydride is a mild and highly selective reducing agent. Ketones, aldehydes and acid chlorides can be reduced in diethyl ether or diglyme at 0°C, fatty acid esters and nitriles are not reduced, but phenyl esters of fatty acids and alicyclic acids can be reduced.

Uses

antimicrobial, cholesterol lowering agent, for ion-permeable synthetic membranes

Uses

Lithium tri-tert-butoxyaluminum hydride is less reactive than lithium aluminum hydride (LAH) and is very useful in selective reductions of acyl halides, aldehydes, ketones, and esters. It is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dye stuff. LAH, is a reducing agent commonly employed in modern organic synthesis.

Preparation

Lithium aluminum hydride reacts with tert-butanol in ether to prepare Lithium tri-tert-butoxyaluminum hydride.
LiAlH4+3 (CH3)3COH→LiAlH[OC(CH3)3] 3+3 H2

General Description

Lithium tri-tert-butoxyaluminum hydride is a mild reducing agent mainly used for the selective reduction of ketones. It is very suitable for selective reductions on account of its mild reducing power, the most important of these being the reduction of steroid ketones. In addition to chemical selectivity, a certain stereoselectivity is shown in the reduction of cyclic ketones.

reaction suitability

reagent type: reductant

Lithium tri-tert-butoxyaluminum hydride Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Lithium tri-tert-butoxyaluminum hydride manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

Product: Lithium tri-tert-butoxyaluminum hydride 17476-04-9
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-10-28

Hebei Zhuanglai Chemical Trading Co.,Ltd

Product: Lithium Tri-Tert-Butoxyaluminum Hydride 17476-04-9
Price: US $120.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20ton
Release date: 2024-05-14

Hebei Yanxi Chemical Co., Ltd.

Product: Lithium tri-tert-butoxyaluminum hydride 17476-04-9
Price: US $60.00-35.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 20 tons
Release date: 2023-09-13

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