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Merck

214981

Diisobutylaluminum hydride solution

1.0 M in THF

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
NACRES:
NA.22
PubChem Substance ID:
24852859
eCl@ss:
38120609
UNSPSC Code:
12352001
MDL number:
MFCD00008928
Beilstein/REAXYS Number:
4123663
Form:
liquid

Key Documents

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InChI

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

SMILES string

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

InChI key

AZWXAPCAJCYGIA-UHFFFAOYSA-N

form

liquid

reaction suitability

reagent type: reductant

concentration

1.0 M in THF

bp

65 °C

density

0.866 g/mL at 25 °C

storage temp.

2-8°C

Quality Level

200

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Application

Diisobutylaluminum hydride solution (1M in THF) is a powerful reducing agent. It can be used in the following reactions:
  • Synthesis of trans-alkene isosteres of protected dipeptides.
  • To generate bis(1,5-cyclooctadiene)nickel(0) (Ni(cod)2) in situ, which can catalyze the conjugate addition of ethenyltributyltin to 2-propenal to form tert-butyldimethyl[((E)-1,4pentadienyl)oxy]silane.
  • Reduction of the arylpropiolate esters to give the corresponding propargyl alcohol.

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

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Skin Corr. 1B - STOT SE 3 - Water-react. 1

target_organs

Central nervous system, Respiratory system

supp_hazards

EUH014,EUH019

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk

WGK 1

flash_point_f

1.4 °F - closed cup

flash_point_c

-17 °C - closed cup

ppe

Faceshields, Gloves, Goggles

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT2088
SHBS9968
SHBS3488
SHBR2434
SHBR0979

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A stereocontrolled synthesis of trans-alkene isosteres of dipeptides.
Spaltenstein A, et al.
Tetrahedron Letters, 27(19), 2095-2098 (1986)
Hideki Ishii et al.
Organic & biomolecular chemistry, 3(19), 3471-3472 (2005-09-21)
The lactone rings of ginkgolide A are converted into corresponding tetrahydrofuran moieties via DIBAL-H reduction followed by deoxygenation of the formed lactols with Et3SiH-BF3.Et2O to produce a series of lactone-free ginkgolides.
V Constantinou-Kokotou et al.
The journal of peptide research : official journal of the American Peptide Society, 58(4), 325-331 (2001-10-19)
A general method for the synthesis of enantiopure non-natural alpha-amino acids is described. The key intermediate tert-butyl (2S)-2-[bis(tert-butoxycarbonyl)amino]-5-oxopentanoate was obtained from l-glutamic acid after suitable protection and selective reduction of the gamma-methyl ester group by DIBALH. Wittig reaction of this
Nobuo Tanaka et al.
Carbohydrate research, 343(15), 2675-2679 (2008-08-23)
The reductive ring-opening reaction of benzylidene-protected glucosides and mannosides such as methyl 2,3-di-O-benzyl-4,6-O-benzylidene-alpha-d-glucoside (1) and methyl 2,3-di-O-benzyl-4,6-O-benzylidene-alpha-d-mannoside (4) by using a toluene stock solution of DIBAL-H and a dichloromethane stock solution of DIBAL-H gives mainly or selectively the corresponding 2,3,4-tri-O-benzyl
Diisobutylaluminum hydride mediated regioselective O desilylations: access to multisubstituted cyclodextrins.
Ramprasad Ghosh et al.
Angewandte Chemie (International ed. in English), 51(7), 1548-1552 (2011-10-19)
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