4071-18-5Relevant articles and documents
X-RAY DIFFRACTION STRUCTURAL ANALYSIS OF 2,2,4-TRIMETHYL-SUBSTITUTED 6-HYDROXY-1,2-DIHYDRO- AND 6-OXO-2,6-DIHYDROQUINOLINES
Obodovskaya, A. E.,Starikova, Z. A.,Ivanov, Yu. A.,Pokrovskaya, I. E.
, p. 729 - 733 (1985)
An x-ray diffraction structural analysis was carried out on 6-hydroxy-1,2-dihydro- and 6-oxo-2,6-dihydro-2,2,4-trimethylquinolines on a diffractometer using λMo radiation.The structure was solved by the direct method and refined by the anisotropic method of least squares to give R = 0.044 and 0.040.The dihydrogenated ring in the 6-hydroxy derivative is nonplanar.The length of the C-C(=C) bond (1.470 Angstroem) and the nonplanarity of the ?-systems of the C=C double bond and of the benzene ring (dihedral angle 15.4 deg) indicate less conjugation in comparison with planar molecules.
SYNTHESIS AND PROPERTIES OF DERIVATIVES OF 2,2,4-TRIMETHYL-SUBSTITUTED QUINOLINES AND SOME OF THEIR ANALOGS
Ivanov, Yu. A.,Chernyshova, T. V.,Pokrovskaya, I. E.,Zaichenko, N. L.
, p. 470 - 475 (1981)
-