Chemistry of Heterocyclic Compounds p. 857 - 861 (1985)
Update date:2022-08-03
Topics:
Luk'yanov, B. S.
Nivorozhkin, L. E.
Chernysh, Yu. E.
Minkin, V. I.
New spirans of the 5,5-dimethyl-3-phenyl-2-oxazolidine series that display photochromic properties in alcohol solutions at -80 deg C were synthesized.The photoinduced forms are characterized by the presence of two long-wave absorption bands at 350-420 nm and 500-650 nm.The 1H and 13 C NMR spectra were studied.Anisochronicity of the diastereotopic methyl groups of the oxazolidone ring shows up only in the 13 C NMR spectra.
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