CAS 994-30-9: Triethylsilyl chloride

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chlorotriethylsilane is a silylating agent that reacts with hydroxyl groups to form chloroethoxysilanes. It is used to prepare the 10-desacetyl paclitaxel intermediate, which is a precursor of paclitaxel, an anticancer drug. The reaction solution is typically prepared by mixing the reagents in a flow system and then treated with water vapor. This reaction produces hydrochloric acid as a by-product, so it must be conducted under an inert atmosphere or in a dry box. Chlorotriethylsilane also reacts with fatty acids to form chloroethoxy fatty acid esters that are used as detergents for fats and oils. Chlorotriethylsilane can react with terpenes and dibutyltin oxide to produce chlorodibutyltin compounds that are used as lubricants and antifouling agents for metal surfaces. Chlorotriethylsilane can

S17525 - Triethylchlorosilane

Chlorotriethylsilane is used in laboratory chemicals. It is used for preparing silylating agent and acts as a catalyst for lewis acid. It is used for executing chemical reactions for silicon oil, silicon resin and polysiloxane. It is also used for eradicating robe agent, and used as protective agent and leather surface treating agent. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Stability Moisture Sensitive Applications Chlorotriethylsilane is used in the preparation of potent silylating agent and lewis acid catalyst. Chlorotriethylsilane derivatived ethers have been shown to be more stable towards hydrolysis than are trimethyl ethers. E0 References Alvisi, C. et al.: J. Org. Chem., 63, 1330 (1998): Higashiya, S. et al.: J. Org. Chem., 69, 6326 (2004); Hicks, J.D. et al.: Org. Lett., 9, 5621 (2007);

Triethylchlorosilane, 99%

Chlorotriethylsilane

Trialkylsilyl Blocking Agent Used as a protecting group for reactive hydrogens in alcohols, amines, thiols, and carboxylic acids. Organosilanes are hydrogen-like, can be introduced in high yield, and can be removed under selective conditions. They are stable over a wide range of reaction conditions and can be removed in the presence of other functional groups, including other protecting groups. The tolerance of silylated alcohols to chemical transformations summary is presented in Table 1 of the Silicon-Based Blocking Agents brochure. Triethylchlorosilane; Chlorotriethylsilane; TES-Cl Stability of ethers intermediate between TMS and TBS ethersGood for 1°, 2°, 3° alcoholsCan be cleaved in presence of TBS, TIPS and TBDPS ethersUsed primarily for the protection of alcoholsCan be used to protect amines and carboxylic acidsSummary of selective deprotection conditions is provided in Table 7 through Table 20 of the Silicon-Based Blocking Agents brochure