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58479-61-1 - tert-Butyldiphenylchlorosilane, 97% - tert-Butylchlorodiphenylsilane - tert-Butyldiphenylsilyl chloride - A12721 - Alfa Aesar

A12721 tert-Butyldiphenylchlorosilane, 97%

Numéro de CAS
tert-Butyldiphenylsilyl chloride

Conditionnement Prix ($) Quantité Disponibilité
10g 42,00
50g 130,00
250g 539,00
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tert-Butyldiphenylchlorosilane, 97%


Propriétés chimiques

Poids moleculaire
Point d'ébullition
Point d'éclair
Indice de réfraction
Moisture Sensitive
Miscible with chloroform and ethyl acetate. Immiscible with water.


tert-Butyldiphenylchlorosilane acts as a silylating reagent used to protect alcohols and in the preparation of silyl ethers. It plays a major role as a raw material and a precursor in organic synthesis and pharmaceuticals. It is also used for the synthesis of interphenylene phenyloxazoles which can be used for the treatment of circulatory disorders, angina and stroke.


Moisture sensitive. Incompatible with strong oxidizing agents, water and bases.

Références bibliographiques

Silylating agent (see Appendix 4) for the formation, with e.g. imidazole, of t-butyldiphenylsilyl (TBDPS) ethers of alcohols: Can. J. Chem., 53, 2975 (1975); Org. Synth. Coll., 9, 139 (1998). Alternative to tert-Butyl­dimethyl­chlorosilane, A13064, allowing selective protection of primary alcohols in the presence of secondary, using DMAP/ pyridine: Helv. Chim. Acta, 69, 1273 (1986), or DMAP/ triethylamine: Tetrahedron Lett., 99 (1979); 26, 1185 (1985). TBDPS ethers tend to be more crystalline and are much more stable to acidic conditions than TBDMS. They can also survive acetal formation and cleavage, as well as the acidic conditions required for cleavage of trityl and THP ethers. Silylation rates of hindered alcohols have been increased in the presence of silver nitrate: J. Am. Chem. Soc., 116, 5050 (1994).

Cleavage occurs readily with TBAF in THF: Org. Synth. Coll., 9, 4 (1998). For use of K10 clay in aqueous MeOH, see: J. Org. Chem., 61, 9026 (1996). Cleavage with BBr3 leads directly to the corresponding alkyl bromides: J. Org. Chem., 53, 3111 (1988).

The silyl copper species derived from the lithio-derivative and CuCN adds to terminal alkynes, giving vinyl copper intermediates which react with electrophiles to give vinyl silanes. The presence of the hindered TBDPS group confers some useful differences in comparison with less hindered silyl groups: J .Chem. Soc., Perkin 1., 1525 (1995); compare Chlorodimethyl­phenyl­silane, A15638. The hindered TBDPS group has also been utilized in the Peterson olefination reaction to promote high (Z)-selectivity: Synthesis, 1223 (2000).

Clement, L. L.; Tsakos, M.; Schaffert, E. S.; Scavenius, C.; Enghild, J. J.; Poulsen, T. B. The amido-pentadienoate-functionality of the rakicidins is a thiol reactive electrophile-development of a general synthetic strategy. Chem. Commun. 2015, 51 (62), 12427-12430.

Liu, Y.; Wang, S. Q.; Zhao, B. X. A novel pyrazoline-based fluorescent probe for detecting fluoride ion in water and its application on real samples. RSC Adv. 2015, 5 (42), 32962-32966.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Mentions de prudence: P260-P201-P280-P304+P340-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Classe de danger
Groupe d'emballage
Code tarifaire harmonisé


Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux


Analytique et matériel de laboratoire