A New Preparation of Benzofurans Utilizing Trimethylsilyldiazomethane
o-Triisopropylsiloxyaryl ketones and aldehydes smoothly reacted with the lithium salt of trimethylsilyldiazomethane to give o-triisopropylsiloxyphenylacetylenes which were easily converted to benzofurans by treatment with tetra-n-butylammonium fluoride. 3-Benzofuranmethanols were also obtained when the reaction was conducted in the presence of carbonyl compounds.
Ito, Yasuko,Aoyama, Toyohiko,Shioiri, Takayuki
p. 1163 - 1164
(2007/10/03)
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