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494011

Sigma-Aldrich

(4-Bromophenylethynyl)trimethylsilane

98%

Synonym(s):

(p-Bromophenyl)ethynyl)trimethylsilane, 1-(p-Bromophenyl)-2-trimethylsilylacetylene, 1-Bromo-4-(2-trimethylsilylethynyl)benzene, 1-Bromo-4-(trimethylsilylethynyl)benzene, 1-Bromo-4-[2-(trimethylsilyl)ethynyl]benzene, 2-(p-Bromophenyl)-1-trimethylsilylacetylene, 4-(Trimethylsilylethynyl)phenyl bromide, [(4-Bromophenyl)ethynyl]trimethylsilane, [1-(4-Bromophenyl)-2-trimethylsilyl]acetylene, [2-(4-Bromophenyl)ethynyl]trimethylsilane

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About This Item

Linear Formula:
BrC6H4C≡CSi(CH3)3
CAS Number:
16116-78-2
Molecular Weight:
253.21
MDL number:
MFCD01863556
UNSPSC Code:
12352100
PubChem Substance ID:
24872871
NACRES:
NA.22

Assay

98%

mp

61-63 °C (lit.)

SMILES string

C[Si](C)(C)C#Cc1ccc(Br)cc1

InChI

1S/C11H13BrSi/c1-13(2,3)9-8-10-4-6-11(12)7-5-10/h4-7H,1-3H3

InChI key

RNMSGCJGNJYDNS-UHFFFAOYSA-N

General description

(4-Bromophenylethynyl)trimethylsilane can be synthesized by the palladium catalyzed reaction between 4-bromo-1-iodobenzene and trimethylsilylacetylene. It undergoes Buchwald-Hartwig coupling with para-substituted diphenylamines.

Application

(4-Bromophenylethynyl)trimethylsilane may be used to synthesize:
  • 1-bromo-4-ethynylbenzene
  • 4-(4-bromophenyl)-3-butyn-2-one
  • 4-ethynyl-4′-tert-butylbiphenyl
  • 1,4-bis[2-(4-bromophenyl)ethynyl]-2,5-dihexylbenzene

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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