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215007

Sigma-Aldrich

Diisobutylaluminum hydride solution

1.0 M in toluene

Synonym(s):

DIBAL, DIBAL-H

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About This Item

Linear Formula:
[(CH3)2CHCH2]2AlH
CAS Number:
1191-15-7
Molecular Weight:
142.22
Beilstein:
4123663
MDL number:
MFCD00008928
UNSPSC Code:
12352001
eCl@ss:
38120609
PubChem Substance ID:
24852861
NACRES:
NA.22

form

liquid

Quality Level

200

reaction suitability

reagent type: reductant

concentration

1.0 M in toluene

density

0.858 g/mL at 25 °C

SMILES string

CC(C)C[AlH]CC(C)C

InChI

1S/2C4H9.Al.H/c2*1-4(2)3;;/h2*4H,1H2,2-3H3;;

InChI key

AZWXAPCAJCYGIA-UHFFFAOYSA-N

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Application

Diisobutylaluminum hydride solution (1M in toluene) has been used for the reduction of aziridine esters to the corresponding aldehydes. It has also been used in the synthesis of dialkylaluminum alkoxides from alcohols.
Used in Pd-catalyzed reductive debromination of secondary alkyl bromides. O-Debenzylation and ring opening of perbenzylated furanosides. Convenient in situ generation of HZrCp2Cl from ZrCp2Cl2 and DIBAL-H.

Packaging

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

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

Signal Word

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Repr. 2 - Skin Corr. 1B - STOT RE 2 Inhalation - 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)

39.2 °F - closed cup

Flash Point(C)

4 °C - closed cup

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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Macromolecular engineering of polyactones and polyactides. 12. Study of the depolymerization reactions of poly (. epsilon.-caprolactone) with functional aluminum alkoxide end groups.
Dubois P, et al.
Macromolecules, 26(17), 4407-4412 (1993)
Synthesis of peptide macrocycles using unprotected amino aldehydes.
Rotstein BH, et al.
Nature Protocols, 5(11), 1813-1813 (2010)
Damien Webb et al.
Organic letters, 14(2), 568-571 (2011-12-31)
A continuous flow system for the multiparameter (flow rate, temperature, residence time, stoichiometry) optimization of the DIBALH reduction of esters to aldehydes is described. Incorporating an in-line quench (MeOH), these transformations are generally complete in fewer than 60 s. Mixing
Hidetsura Cho et al.
The Journal of organic chemistry, 75(3), 627-636 (2009-12-31)
A systematic investigation of the reductive ring-expansion reaction of cyclic ketoximes fused to aromatic rings with diisobutylaluminum hydride (DIBALH) is described. This reaction regioselectively afforded a variety of five- to eight-membered bicyclic heterocycles or tricyclic heterocycles containing nitrogen neighboring an
D J Kopecky et al.
The Journal of organic chemistry, 65(1), 191-198 (2000-05-18)
An optimized protocol for the DIBALH reductive acetylation of acyclic esters and diesters is described. This reductive acetylation procedure allows a wide variety of esters to be converted into the corresponding alpha-acetoxy ethers in good to excellent yields. It was
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