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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 15251663Generated: October 31, 2026

tert-Butyl chloro(trimethylsilyl)acetate

REVBFXGFKCMPSR-UHFFFAOYSA-N · t-Butyl 2-Chloro-2-trimethylsilylacetate · tert-Butyl-2-chloro-2-trimethylsilylacetate · Acetic acid, 2-chloro-2-(trimethylsilyl)-, 1,1-dimethylethyl ester · tert-Butyl-2-chloro-2-trimethylsilylacetate**CUSTOMSYNTHESISPLEASEASK**

https://huagongshe.com/en/chemical/15251663

tert-Butyl chloro(trimethylsilyl)acetate molecular structure

Identifiers & Physical Properties

CAS No.66406-43-7
Molecular formulaC9H19ClO2Si
Average molar mass222.78 g/mol
Monoisotopic mass222.08428406 g/mol
SMILESCC(C)(C)OC(=O)C(Cl)[Si](C)(C)C
InChIKeyREVBFXGFKCMPSR-UHFFFAOYSA-N
PubChem CID15251663
DTXSIDDTXSID50570480

Chemical & Physical Properties

Topological polar surface area26.3
Hydrogen bond donors0
Hydrogen bond acceptors2
Rotatable bonds4
Heavy atoms13
Formal charge0
Complexity191
Boiling point221.2±20.0 °C(Predicted)
Density0.976±0.06 g/cm3(Predicted)

Preparation & Synthesis

Preparation

Tert-butyl-2-chloro-2-trimethylsilylacetate is prepared from t-Butyl Chloroacetate by sequential reaction with Lithium Diisopropylamide and Chlorotrimethylsilane followed by aqueous workup and distillation.