Electronic absorption spectra of alkyl- and phenyl-substituted pyrylium salts

doi:10.1016/0040-4020(60)80005-1

Tetrahedron

Volume 9, Issues 3–4, 1960, Pages 163-174

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Abstract

Absorption spectra in the region 220–400 mμ have been determined for alkyl- and phenyl-substituted pyrylium salts. Three bands are apparent, in the decreasing order of wavelength, x, y, and x′ bands. These bands are differently influenced by substitution in α and γ positions. Relationships of these bands with transitions in other aromatic compounds are established, and the effect of heteroatom variation in the series III–VI on the spectrum is discussed.

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Electronic absorption spectra of alkyl- and phenyl-substituted pyrylium salts

Abstract

J. Amer. Chem. Soc.

J. Chem. Phys.

Studii Cerc. Chim.

Liebigs Ann.

J. Amer. Chem. Soc.

Helv. Chim. Acta

Helv. Chim. Acta

Helv. Chim. Acta

Helv. Chim. Acta

Helv. Chim. Acta

Izv. Akad. Nauk, OHN

Chem. Ber.

Proc. Chem. Soc.

Chem. Ber.