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Merck
CN

190306

Diisobutylaluminum hydride solution

1.0 M in hexanes

Synonym(s):

DIBAL, DIBAL-H

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About This Item

Linear Formula:
[(CH3)2CHCH2]2AlH
CAS Number:
Molecular Weight:
142.22
UNSPSC Code:
12352001
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
4123663
Form:
liquid
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form

liquid

Quality Level

reaction suitability

reagent type: reductant

concentration

1.0 M in hexanes

density

0.701 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

General description

Diisobutylaluminum hydride reducing agent is commonly used for the reduction of an ester to aldehyde.

Application

Diisobutylaluminum hydride solution (1.0 M in hexanes) can be used in the synthesis of potassium diisobutyl-t-butoxyaluminum hydride (PDBBA), a novel reducing agent for the chemoselective conversion of esters in the presence of nitriles. The DIBAL-triethylamine complex can reduce α-oxoketene dithioacetal to the saturated ketone.
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.


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Danger

target_organs

Central nervous system, Nervous system

supp_hazards

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk

WGK 3

flash_point_f

-9.4 °F - closed cup

flash_point_c

-23 °C - closed cup

Hazard Classifications

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

Regulatory Information

危险化学品

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alpha.-Oxoketene dithioacetal chemistry. 2. Conjugate reductions with electrophilic reducing agents.
Gammill R
The Journal of Organic Chemistry, 46(17), 3555-3558 (1981)
Chemoselective Reduction of Esters to Aldehydes by Potassium Diisobutyl-t-butoxyaluminum Hydride (PDBBA).
Chae MJ, et al.
Bull. Korean Chem. Soc., 28(12), 2517-2517 (2007)
Takashi Tomioka et al.
The Journal of organic chemistry, 76(11), 4669-4674 (2011-04-30)
Stepwise, selective DIBAL reduction of the acetonide diester derived from tartaric acid followed by the Horner-Emmons reaction effectively provided desymmetrized hydroxy mono-olefination products in a one-pot operation.



Global Trade Item Number

SKUGTIN
190306-PZ04061823819169
190306-800ML04061838759764
190306-100ML04061838759757
190306-4X100ML04061838118448