New Gem- and Vic-Disubstituent Effects on Cyclizations1
نویسنده
چکیده
Several new gem-disubstituent effects on cyclizations e.g., the gem-dialkoxy, -dicarboalkoxy, and -dithioalkoxy effects, have been discovered. In addition we have also observed a new vicinal disubstituent effect. A novel ring size effect of ketals on radical cyclizations has been investigated.
منابع مشابه
gem-disubstituent effect: theoretical basis and synthetic applications.
3. Synthetic Applications 1746 3.1. Pericyclic Reactions 1747 3.1.1. Diels−Alder Cycloadditions 1747 3.1.2. Dipolar Cycloadditions 1749 3.1.3. Ene Reactions 1750 3.1.4. Claisen Rearrangements 1750 3.2. Radical Cyclizations 1750 3.3. Transition-Metal-Catalyzed Cyclizations 1753 3.4. Ring-Closing Metathesis 1754 3.5. Electrophilic Cyclizations 1755 3.6. Other Cyclizations 1756 4. Biochemical and ...
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تاریخ انتشار 1999