Syntheses and 1H NMR Studies of Substituted Styryl-10H-Pyrido [1,2-a]Indolium Perchlorates

Abstract

Abstract: Condensation of 8,10,10-trimethyl-10H-pyrido[1,2-a]indolium perchlorate with substituted benzaldehyde in the presence of piperidine yielded 12 new 8-substituted styryl-10, 10-dimethyl-10H-pyrido[1,2-a]indolium perchlorates.Their structures were confirmed by elemental and spectral analyses.The substituent effects on the chemical shifts of different protons of the title compounds are discussed.The quantitative correlations between the chemical shifts and the substituent constants are described.

Key words: Pyrido[1,2-a]indolium, Synthesis, ¹H NMR, Substituent effect

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LIU Zhi-jie, LI Wen-ge, ZHANG Jian-heng, GONG Yong . Syntheses and ₁H NMR Studies of Substituted Styryl-10H-Pyrido [1,2-a]Indolium Perchlorates[J]. Chem. J. Chinese Universities, 1992, 13(4): 470.

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Syntheses and ₁H NMR Studies of Substituted Styryl-10H-Pyrido [1,2-a]Indolium Perchlorates

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