Diradical cyclization methodologies. Model studies probing the application of photoinduced-electron transfer processes in synthetic routes to the protoberberine and spirobenzyl isoquinoline alkaloids
2-[(Trimethylsilyl)methyl]benzyl Methanesulfonates: Useful Precursors for the Generation of o-Quinodimethanes
摘要:
2-[(Trimethylsilyl)methyl]benzyl methanesulfonates react with potassium fluoride in the presence of a catalytic amount of 18-crown-6 at room temperature to give o-quinodimethanes, which are trapped with electron-deficient olefins to afford [4+2] cycloadducts in good yields.
Syntheses of polycyclic ring systems based on the new generation of o-quinodimethanes
作者:Yoshihiko Ito、Masashi Nakatsuka、Takeo Saegusa
DOI:10.1021/ja00390a036
日期:1982.12
An efficient and versatile generation of o-xylylenes by fluoride anion induced 1,4 elimination of o-(.alpha.-trimethylsilylalkyl)benzyltrimethylammonium halides
作者:Yoshihiko Ito、Masashi Nakatsuka、Takeo Saegusa
DOI:10.1021/ja00522a081
日期:1980.1
Exploratory, mechanistic, and synthetic aspects of silylarene-iminium salt SET photochemistry. Studies of diradical cyclization processes and applications to protoberberine alkaloid synthesis
作者:Ginny Dai-Ho、Patrick S. Mariano
DOI:10.1021/jo00256a038
日期:1988.10
ITO, YOSHIHIKO;NAKATSUKA, MASASHI;SAEGUSA, TAKEO, J. AMER. CHEM. SOC., 1982, 104, N 26, 7609-7622