Diisobutylaluminumhydride, CAS No. 1191-15-7

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1191-15-7

Catalog No. EBD39918

CAS 1191-15-7

Name Diisobutylaluminumhydride

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Basic Information

Synonyms: Diisobutylaluminumhydride DIBAL-H Diisobutylaluminiumhydride Di-i-butylaluminumhydride Diibutylaluminumhydrideinhexanecolorlessliq DIBAH hydrido[bis(2-methylpropyl)]aluminum bis(2-methylpropyl)aluminum(1+)hydride bis(2-methylpropyl)aluminum al-alchili al-diisobutyl aluminum,diisobutylhydro-

Molecular Formula: C8H19Al

Molecular Weight: 142.22

MDL Number: MFCD00008928

Categories: Synthetic Chemistry > Organometallic Reagents > Organoaluminum Reagents Synthetic Chemistry > Basic Synthetic Reagents > Reducing Agents

Product Description:

Diisobutylaluminum hydride (DIBAL-H) is an organoaluminum compound with the formula (i-Bu)₂AlH. It is a colorless, pyrophoric liquid typically supplied as a solution in an organic solvent such as toluene or hexane. As a highly reactive and selective reducing agent, it is a staple in synthetic organic chemistry laboratories. Its primary application is the chemoselective reduction of various functional groups. Most notably, DIBAL-H is the reagent of choice for the partial reduction of esters, nitriles, and amides to the corresponding aldehydes under mild conditions, a transformation that is difficult to achieve with many other reducing agents. It is also widely used for the reduction of acid chlorides to aldehydes, epoxides to alcohols, and in conjugate reductions. Due to its extreme air- and moisture-sensitivity, DIBAL-H must be handled under an inert atmosphere (e.g., nitrogen or argon) using strict Schlenk-line or glovebox techniques. Its pyrophoric nature necessitates careful quenching protocols for waste disposal.

Physical Properties

Melting Point: -70 °C

Boiling Point: 116-118 °C/1 mmHg(lit.)

Flash Point: -17 °C

Density: 0.798 g/mL at 25 °C(lit.)

Solubility: vigorous reaction

Storage: 2-8°C

Safety Information

Packing Level: I

Hazard Category: 4.3(4.2)

Transport Codes: 3394

Analytical Data

Appearance: Clear solution