A New Preparation of Benzofurans Utilizing Trimethylsilyldiazomethane
作者:Yasuko Ito、Toyohiko Aoyama、Takayuki Shioiri
DOI:10.1055/s-1997-999
日期:1997.10
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.