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715468

Sigma-Aldrich

Barium tert-butoxide

85%

Synonym(s):

Barium di-t-butoxide

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1 G
$76.60

About This Item

Empirical Formula (Hill Notation):
C8H18BaO2
CAS Number:
Molecular Weight:
283.55
MDL number:
UNSPSC Code:
12352001
PubChem Substance ID:
NACRES:
NA.22

$76.60


Estimated to ship onMay 12, 2025


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Quality Level

assay

85%

form

powder

mp

>200 °C

storage temp.

2-8°C

SMILES string

CC(C)(C)O[Ba]OC(C)(C)C

InChI

1S/2C4H9O.Ba/c2*1-4(2,3)5;/h2*1-3H3;/q2*-1;+2

InChI key

SLPLCLDJTNLWPW-UHFFFAOYSA-N

General description

Barium tert-butoxide is a Brønsted base catalyst that can be used as a precursor of various barium catalysts like barium aryloxide. It can also be used in the preparation of barium diphenylmethanide, applicable in the organometallic chemistry.[1]

Application

Barium tert-butoxide can be used:
  • As a catalyst along with various phenolic ligands in the aldol reactions of amides with aldehydes and ketones.[2]
  • To prepare yttrium and copper metal complexes by reacting with Y(thd)3 and Cu(thd)2, where “thd” is 2,2,6,6-tetramethylheptane-3,5-dione.[3]
  • As an initiator along with an alkyl lithium in the butadiene copolymerization reaction.[4]
  • In the iridium catalyzed allylic alkylation of non-stabilized enolates.[5]

signalword

Danger

Hazard Classifications

Flam. Sol. 2 - Skin Corr. 1B - STOT SE 3

target_organs

Respiratory system

supp_hazards

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Iridium-catalyzed diastereo-, enantio-, and regioselective allylic alkylation with prochiral enolates
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Highly anti-Selective Catalytic Aldol Reactions of Amides with Aldehydes
Saito S and Kobayashi S
Journal of the American Chemical Society, 128(27), 8704-8705 (2006)
Reactivity of mixed-metal BaCu and BaY β-diketonatoalkoxides with lewis bases: Molecular structures of [Ba2Cu (μ3, η2-OCHMeCH2NMe2) 2 (μ, η2-thd) 2 (η2-thd) 2 (PriOH2],[Cu3 (μ3-OBut) 2 (μ-OBut)(η2-thd) 3] and [Ba (η2-thd) 2 (TMEDA) 2]
Labrize F, et al.
Polyhedron, 15(4), 577-589 (1996)
Barium tert-butoxide
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2009)
Accessible microstructures of polybutadiene by anionic polymerization
Forens A, et al.
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