Efficient trimethylsilylation of alcohols and phenols in the presence of ZrCl4 as a reusable catalyst
β Scribed by Farhad Shirini; Esmail Mollarazi
- Book ID
- 119215840
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 148 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1566-7367
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π SIMILAR VOLUMES
## Abstract Sterically hindered secondary aliphatic and tertiary alcohols as well as amines and thiols are resistant to the reagent system.
## Abstract In the present work, the application of electronβdeficient tetraphenylporphyrinatovanadium(IV) trifluoromethanesulfonate, [V^IV^(TPP)(OTf)~2~], in the trimethylsilylation of alcohols and phenols with hexamethydisilazane (HMDS) is reported. This new V(IV) catalyst was used as an efficien
Acetylation of various alcohols and phenols was performed successfully using an immobilized cobalt(II) catalyst in high yield. The catalyst shows high thermal stability and was also recovered and reused at least 10 times without any considerable loss of activity.