Highly efficient and selective trimethylsilylation of alcohols and phenols with hexamethyldisilazane catalyzed by polystyrene-bound tin(IV) porphyrin

被引：18
|
作者：
Gharaati, Shadab [1 ,2 ]
Moghadam, Majid [1 ]
Tangestaninejad, Shahram [1 ]
Mirkhani, Valiollah [1 ]
Mohammadpoor-Baltork, Iraj [1 ]
机构：
[1] Univ Isfahan, Catalysis Div, Dept Chem, Esfahan 8174673441, Iran
[2] Payame Noor Univ, Dept Chem, Tehran, Iran
来源：
POLYHEDRON | 2012年 / 35卷 / 01期
关键词：
Alcohol; Phenol; Trimethylsilyl ether; Polystyrene; High-valent tin(IV) porphyrin; HIGH-VALENT METALLOPORPHYRIN; ALLYL VINYL ETHERS; HYDROXYL-GROUPS; CHEMOSELECTIVE TRIMETHYLSILYLATION; PRACTICAL PROTOCOL; O-SILYLATION; SILICA-GEL; PROTECTION; EPOXIDES; HMDS;
D O I：
10.1016/j.poly.2012.01.011
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In the present work, investigation of the catalytic activity of tetrakis(p-aminophenyl)porphyrinatotin(IV) trifluoromethanesulfonate, [Sn-IV(TNH2PP)(OTf)(2)]. supported on chloromethylated polystyrene in the trimethylsilylation of alcohols and phenols with hexamethyldisilazane is reported. The prepared catalyst was characterized by elemental analysis, FT-IR and diffuses reflectance UV-Vis spectroscopic methods. This catalyst was used for selective trimethylsilylation of different alcohols and phenols with HMDS, with short reaction times and high yields. Also the catalyst is of high reusability and stability, in that it was recovered several times without loss of its initial activity. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：87 / 95
页数：9
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