## Abstract For Abstract see ChemInform Abstract in Full Text.
Selective deprotection of either alkyl or aryl silyl ethers from aryl, alkyl bis-silyl ethers
โ Scribed by Sudha V. Ankala; Gabriel Fenteany
- Book ID
- 104251360
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 120 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
A pair of complementary methods was developed using CeCl 3 โข7H 2 O/CH 3 CN and LiOH/DMF to selectively deprotect alkyl and aryl silyl ethers, respectively, from the corresponding bis-silyl ethers in excellent yields.
๐ SIMILAR VOLUMES
Aryl, Alkyl Bis-Silyl Ethers: Rapid Access to Monoprotected Aryl Alkyl and Biaryl Ethers. -Simple one-pot reaction conditions are reported for the selective conversion of aryl silyl ethers (I) to alkyl aryl ethers (III) or unsymmetrical bisaryl ethers (V) without affecting present siloxyalkyl groups
Results are reported on the regioselective C-deuteriation of a series of silyl enol ethers derived from aryl alkyl ketones using deuterium (D 2 ) gas as the deuterium source and palladium-on-barium sulfate as the mediator. These results highlight the numerous reaction pathways and different product
Alkyl TBS ethers can be selectively cleaved in high yield in the presence of aryl TBS ethers employing either in situ generated hydrogen chloride or hydrogen iodide.