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Synlett 2003(6): 0825-0828
DOI: 10.1055/s-2003-38744
DOI: 10.1055/s-2003-38744
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York
Aryl, Alkyl bis-Silyl Ethers: Rapid Access to Monoprotected Aryl Alkyl and Biaryl Ethers
Further Information
Received
13 March 2003
Publication Date:
17 April 2003 (online)
Publication History
Publication Date:
17 April 2003 (online)
Abstract
A simple one-pot procedure has been developed for the selective etherification of aryl silyl ethers in aryl, alkyl bis-silyl ethers to generate alkyl tert-butyldimethylsilyl-protected aryl alkyl ethers and biaryl ethers in good to excellent yields.
Key words
protecting groups - phenols - LiOH/DMF - ethers - selective etherification
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References
Preparation of 8 will be reported elsewhere.
15It is noteworthy that the ester groups in both 7a and 7b remained intact after exposure to 3.0 equiv of LiOH/DMF at r.t. and the coupled product 9 could be obtained in excellent yields.