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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

Quality Level

100

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

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW7763
MKCV4115
0000236290
MKCT8072
MKCT4712

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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)
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)
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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