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194409

Sigma-Aldrich

Bromotrimethylsilane

97%

Synonym(s):

TMBS, Trimethylbromosilane, Trimethylsilyl bromide

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About This Item

Linear Formula:
(CH3)3SiBr
CAS Number:
2857-97-8
Molecular Weight:
153.09
Beilstein:
1731135
EC Number:
220-672-0
MDL number:
MFCD00000048
UNSPSC Code:
12352103
PubChem Substance ID:
24851651
NACRES:
NA.22

Quality Level

200

Assay

97%

form

liquid

contains

copper as stabilizer

refractive index

n20/D 1.424 (lit.)

bp

79 °C (lit.)

density

1.16 g/mL at 25 °C (lit.)

SMILES string

C[Si](C)(C)Br

InChI

1S/C3H9BrSi/c1-5(2,3)4/h1-3H3

InChI key

IYYIVELXUANFED-UHFFFAOYSA-N

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Application

Used with InCl3 to catalyze the direct allylation of a variety of alcohols with allyltrimethylsilane.

Signal Word

Danger

Hazard Statements

H226 - H314 - H335 - H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH014

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

89.6 °F

Flash Point(C)

32 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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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Tetrahedron Letters, 34, 7713-7713 (1993)
Aldrichimica Acta, 14, 31-31 (1981)
J. Chem. Soc. Perkin Trans. II, 263-263 (1991)
Takahiro Saito et al.
The Journal of organic chemistry, 71(22), 8516-8522 (2006-10-27)
The combination of InCl3 and Me3SiBr provided an enhanced Lewis acid system that can be used to promote a wide range of direct coupling reactions between alcohols and silyl nucleophiles in non-halogenated solvents, such as hexane or MeCN. The enhanced
J L Hughes et al.
Peptide research, 8(5), 298-300 (1995-09-01)
The cleavage of a peptide resin attached to a phenylacetomidomethyl (PAM) resin was investigated using bromotrimethylsilane (TMSBr) with thioanisole in trifluoroacetic acid (TFA), and by chlorotrimethylsilane (TMSCl) in the same reagents with lithium bromide. Both TMSBr and TMSCl cleaved the
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