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146498

Sigma-Aldrich

Trimethyltin chloride

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Synonym(s):
Chlorotrimethylstannane
Linear Formula:
(CH3)3SnCl
CAS Number:
Molecular Weight:
199.27
Beilstein:
3535111
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

form

crystals

mp

37-39 °C (lit.)

SMILES string

C[Sn](C)(C)Cl

InChI

1S/3CH3.ClH.Sn/h3*1H3;1H;/q;;;;+1/p-1

InChI key

KWTSZCJMWHGPOS-UHFFFAOYSA-M

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This Item
375195240877T19526
Trimethyltin chloride

Sigma-Aldrich

146498

Trimethyltin chloride

mp

37-39 °C (lit.)

mp

-

mp

65-69 °C (lit.)

mp

>300 °C (lit.)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

General description

Trimethyltin chloride is an organotin reagent widely used in transferring trimethylstannyl groups onto the substrates to synthesize various organostannanes. Trimethylstannyl compounds derived from this reagent, are extensively used in the palladium-catalyzed Stille coupling reactions.

Application

Trimethyltin chloride can be used as a precursor to synthesize trimethyltin hydride, cyanide, methoxide, azide, and lithium compounds.
It can also be used as a reagent to prepare:
  • Organotrimethyltin derivatives by reacting with organocopper compounds via transmetalation reaction.
  • Acetophenone by palladium-catalyzed coupling reaction with benzoyl chloride.
  • Optically active propargyl trimethylstannane by treating with chiral allenyltitanium.
  • Trimethylstannyl nucleophiles, which are applicable in the formation of Sn-C bonds via SN2 reactions, SRN1 reactions, and halogen-metal exchanges.
  • Carbocycles by reacting with unactivated dienes or trienes via radical-mediated carbocyclization reaction in the presence of NaBH3CN and a catalytic amount of AIBN.

Me3SnCl can also be used as a Lewis acid catalyst in asymmetric allylic alkylation reactions.

Pictograms

Skull and crossbonesEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

206.6 °F - closed cup

Flash Point(C)

97 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Chlorotrimethylstannane
Yoshinori Yamamoto, et al.
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2007)
Replacing alkoxy groups with alkylthienyl groups: a feasible approach to improve the properties of photovoltaic polymers.
Huo H, et al.
Angewandte Chemie (International Edition in English), 50(41), 9697-9702 (2011)
Palladium-catalyzed coupling of tetraorganotin compounds with aryl and benzyl halides. Synthetic utility and mechanism.
Milstein D and Stille J K
Journal of the American Chemical Society, 101(17), 4992-4998 (1979)
Chlorotrimethylstannane.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2009)
Ana-Maria Florea et al.
Cell calcium, 37(3), 251-258 (2005-01-27)
Humans are exposed to organotins, like trimethyltin (TMT) chloride via air, water and food, and intoxication might result in severe health complications. Toxic effects of organotin compounds are well documented, but possible mechanisms remain unclear and only little information is

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