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Chemoselective Transformations of Aromatic Methoxymethyl Ethers Using Trialkylsilyl Triflate and 2,2'-Bipyridyl.


ABSTRACT: Aromatic methoxymethyl (MOM) ethers behave differently from aliphatic MOM ethers upon treatment with trialkylsilyl triflate (R3SiOTf) and 2,2'-bipyridyl. The aromatic MOM ethers are first converted to silyl ethers and subsequently deprotected by hydrolysis to give the mother alcohols when the R3SiOTf used is trimethylsilyl triflate (TMSOTf). Conversely, direct conversion of aromatic MOM ethers to aromatic triethylsilyl (TES) ethers is possible when the R3SiOTf used is triethylsilyl triflate (TESOTf).

SUBMITTER: Yanagihara M 

PROVIDER: S-EPMC6649284 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Chemoselective Transformations of Aromatic Methoxymethyl Ethers Using Trialkylsilyl Triflate and 2,2'-Bipyridyl.

Yanagihara Mizushi M   Ohta Reiya R   Murai Kenichi K   Arisawa Mitsuhiro M   Fujioka Hiromichi H  

ACS omega 20190514 5


Aromatic methoxymethyl (MOM) ethers behave differently from aliphatic MOM ethers upon treatment with trialkylsilyl triflate (R<sub>3</sub>SiOTf) and 2,2'-bipyridyl. The aromatic MOM ethers are first converted to silyl ethers and subsequently deprotected by hydrolysis to give the mother alcohols when the R<sub>3</sub>SiOTf used is trimethylsilyl triflate (TMSOTf). Conversely, direct conversion of aromatic MOM ethers to aromatic triethylsilyl (TES) ethers is possible when the R<sub>3</sub>SiOTf us  ...[more]

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