Novel and Highly Effective Method for the Trimethylsilylation of Alcohols and Phenols with Hexamethyldisilazane (HMDS), Catalyzed by I<sub>2</sub>Generated<i>in situ</i>Using Fe(NO<sub>3</sub>)<sub>3</sub>⋅9 H<sub>2</sub>O/NaI under Heterogeneous and Neutral Conditions
作者:Ardeshir Khazaei、Sadegh Rahmati、Amin Rostami
DOI:10.1002/hlca.200900002
日期:2009.7
Structurally diverse alcohols and phenols were trimethylsilylated in a clean and efficient reaction with hexamethyldisilazane (HMDS) based on the use of I2 generated in situ from Fe(NO3)3⋅9H2O/NaI. The reaction occurs very rapid in good‐to‐high yield in CH2Cl2 at room temperature, and the use of toxic and corrosive molecular I2 is avoided.
结构不同的醇和酚是在用六甲基二硅烷(HMDS)清洁和有效的反应基于使用的我三甲基甲硅烷2产生原位选自Fe(NO 3)3 ⋅9ħ 2 O /碘化钠。在室温下,该反应在CH 2 Cl 2中以高至高收率非常迅速地发生,并且避免使用有毒和腐蚀性的分子I 2。
Mild and Highly Efficient Method for the Silylation of Alcohols Using Hexamethyldisilazane Catalyzed by Iodine under Nearly Neutral Reaction Conditions
作者:Babak Karimi、Behzad Golshani
DOI:10.1021/jo005519s
日期:2000.10.1
Green and Efficient Procedure for the Trimethylsilylation of Hydroxy Groups and Their Regeneration Using Sulfamic Acid as Recyclable Catalyst
Structurally diverse alcohols and phenols were efficiently transformed into their corresponding trimethylsilyl ethers with hexamethyldisilazane (HMDS) in the presence of catalytic amounts of sulfamic acid (SA) at room temperature under both acetonitrile and solvent-free conditions. Deprotection of these trimethylsilyl ethers to their parent alcohols and phenols was also achieved using this catalyst in water at room temperature.
Boric acid as cost-effective and recyclable catalyst for trimethylsilyl protection and deprotection of alcohols and phenols
作者:Amin Rostami、Jamal Akradi、Firoz Ahmad-Jangi
DOI:10.1590/s0103-50532010000800026
日期:——
Boric acid has been used as a green, selective and recyclable catalyst for trimethysilylation of alcohols and phenols using hexamethyldisilazane in acetonitrile. Deprotection of trimethylsilyl ethers to their parent alcohols and phenols was also achieved using this catalyst in water at room temperature. The salient features of this methodology are cheap processing, mild acidity conditions, excellent yields of products and easy availability of the catalyst.
Prey,V.; Kubadinow,N., Justus Liebigs Annalen der Chemie, 1967, vol. 701, p. 40 - 52