268569

Trimethylaluminum solution

2.0 M in hexanes

• Synonym(s): Trimethylalane
• Linear Formula: (CH₃)₃Al
• CAS Number: 75-24-1
• Molecular Weight: 72.09
• Beilstein: 3587197
• MDL number: MFCD00008252
• UNSPSC Code: 12352103
• PubChem Substance ID: 24856281
• NACRES: NA.22

Properties

• form: liquid
• Quality Level: 100
• concentration: 2.0 M in hexanes
• density: 0.683 g/mL at 25 °C
• SMILES string: C[Al](C)C
• InChI: 1S/3CH3.Al/h3*1H3;
• InChI key: JLTRXTDYQLMHGR-UHFFFAOYSA-N

Description

General description

Trimethylaluminum is a Lewis acid having wide applications in organic synthesis. It is employed in organic reactions like cross-coupling reaction, methylenation, carboalumination, cyclopropanation, and rearrangement reactions. Tebbe Reagent (methylenation agent) can be prepared in situ by reacting trimethylaluminum with dichlorobis(cyclopentadienyl)titanium.

Application

Used with 4-bromo-2,6-di-tert-butylphenol (cat. no. 394378) to prepare a wide range of carbonyl compounds via the selective rearrangement of epoxides.

Safety Information

• Pictograms: GHS02,GHS08,GHS05,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H225,H250,H260,H304,H314,H336,H361f,H411
• Precautionary Statements: P210 - P231 + P232 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P370 + P378
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Repr. 2 - Skin Corr. 1B - STOT SE 3 - Water-react 1
• Target Organs: Central nervous system
• Supplementary Hazards: EUH014
• Storage Class Code: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: WGK 3
• Flash Point(F): -0.4 °F - closed cup
• Flash Point(C): -18 °C - closed cup