94849-18-0Relevant academic research and scientific papers
2-BENZOPYRYLIUM SALTS.XXXVII. OXYGEN ANALOGS OF REISSERT COMPOUMDS: MOLECULAR STRUCTURE AND REACTIONS WITH SODIUM HYDROXIDE
Shcherbakova, Irina V.,Kuznetsov, Evghenii V.,Yudilevich, Iosif A.,Kompan, Olga E.,Balaban, Alexandru T.,et al.
, p. 6217 - 6224 (2007/10/02)
The weak intensity of the CN stretching band in Ir spectra for 1-cyanoisochromenes is obviously determined by the steric position of the CN group in the molecule, as it was established by X-ray structural analysis for the cyanide addition product (2d) of
2-BENZOPYRYLIUM SALTS. 27. FORMATION OF SUBSTITUTED CHRYSENES FROM 1-METHYL-2-BENZOPYRYLIUM SALTS
Korobka, I. V.,Voloshina, A. I.,Kuznetsov, E. V.
, p. 1214 - 1218 (2007/10/02)
1-Methyl-2-benzopyrylium salts with a free β position of the heteroring primarily form substituted chrysenes.In alkaline media this process does not proceed through the intermediate formation of 1,5-diketones.
