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307793

Sigma-Aldrich

Titanium(IV) bromide

98%

Synonym(s):

Titanium tetrabromide

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About This Item

Linear Formula:
TiBr4
CAS Number:
7789-68-6
Molecular Weight:
367.48
EC Number:
232-185-0
MDL number:
MFCD00011265
UNSPSC Code:
12161600
PubChem Substance ID:
24858626
NACRES:
NA.22

assay

98%

form

solid

reaction suitability

core: titanium
reagent type: catalyst

bp

230 °C (lit.)

mp

38-40 °C (lit.)

density

3.25 g/mL at 25 °C (lit.)

SMILES string

Br[Ti](Br)(Br)Br

InChI

1S/4BrH.Ti/h4*1H;/q;;;;+4/p-4

InChI key

UBZYKBZMAMTNKW-UHFFFAOYSA-J

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Application

Titanium(IV) bromide (Titanium tetrabromide or TiBr4) can be employed as a Lewis acid catalyst in the synthesis of:
  • α-bromomethylene aldols by reacting with arylaldehydes and but-3-yn-2-one via Baylis-Hillman reaction.
  • Titanium(II) bromide which along with copper forms an efficient catalytic system for Pinacol reaction.
  • α-bromo-γ-hydroxyenamides by the reaction of ynamides and aldehyde or ketones.

Features and Benefits

Used for the formation of titanium silicide thin films on Si substrates.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ9018
MKCQ2966
MKCP2323
MKCN8136
MKCN0959

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Efficient diastereoselective pinacol reaction of aliphatic and aromatic aldehydes by combined use of newly utilized titanium (II) bromide and copper
Mukaiyama T, et al.
Chemistry Letters (Jpn), 29(4), 336-337 (2000)
Titanium (IV) Bromide and Boron (III) Tribromide Promoted Baylis-Hillman Reactions of Arylaldehydes with But-3-yn-2-one
Shi M and Wang C-J
Helvetica Chimica Acta, 85(3), 841-846 (2002)
Synthesis of α-Halo-γ -hydroxyenamides by Titanium Tetrahalide Mediated Addition of Aldehydes or Ketones to Ynamides
Yabuuchi Y, et al.
Organic Letters, 18(19), 4951-4953 (2016)
K Sellschopp et al.
The Journal of chemical physics, 152(6), 064702-064702 (2020-02-18)
The ability to synthesize nanoparticles (NPs), here TiO2, of different shapes in a controlled and reproducible way is of high significance for a wide range of fields including catalysis and materials design. Different NP shapes exhibit variations of emerging facets

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