The reaction of vinyl ethers with acridine gives new acridine derivatives in the presence of an organic ammonium salt and alcohol. An organic ammonium salt such as acridinium chloride affect this reaction. All of the addition products were obtained as dihydroacridinyl derivatives. Moreover, in the reaction of ketene silyl acetal with acridine, the addition products were also obtained as the dihydroacridine derivatives.
The Reaction of Vinyl Ethers with Acridine.-The title reaction gives new acridine derivatives (IV) in the presence of an organic ammonium salt and methanol. The reaction is affected by the nature and the amount of the additive. Best results are achieved using acridinium chloride. -(TAKANO, R.; ISHIHARA, Y.; SAITO, H.; KITAHARA, T.; TAKANO, J.; J. Heterocycl.
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