New Approach to Cyclophanes Containing Ethyleneoxy Bridge by Glaser–Eglinton Coupling
摘要:
Three strategies have been explored to generate cyclophane derivatives. In this regard, we identified alkyne metathesis, Diels-Alder reaction, and Glaser-Eglinton coupling as key steps. To this end, cyclophane derivatives containing ethyleneoxy bridge were successfully synthesized in four steps involving Glaser-Eglinton coupling and catalytic hydrogenation sequence.