作者:Alexandru T. Balaban、Mircea D. Gheorghiu、Irina V. Shcherbakova、Evgenii V. Kuznetsov、Iosif A. Yudilevich
DOI:10.1016/s0040-4020(01)89971-3
日期:1987.1
Nucleophilic addition of a cyanide anion to 2-benzopyrylium salts I takes place at the first position and leads to stable isochromenes II, which are oxygen analogs of Reissert compounds. The structure II was confirmed by IR, 1H-NMR and 13C-NMR spectra. The latter spectra reveal clearly the cyano group (which does not yield any observable stretching band) and give evidence for diastereotopic isopropyl
2-Benzopyrylium salts. 44. Formation of 4-acyl-3,4-dihydroisoquinolinium salts from the reaction of 2-benzopyrylium salts with azomethines and the cycloaddition of male-imides to the product of their deprotonation, the 2,3-dihydroisoquinolines
作者:D. �. Tosunyan、S. V. Berin、E. V. Kuznetsov
DOI:10.1007/bf00532071
日期:1992.11
Unterhalt; Fahrig, Scientia Pharmaceutica, 1998, vol. 66, # 3, p. 181 - 188
作者:Unterhalt、Fahrig
DOI:——
日期:——
2-Benzopyrylium salts.
作者:S. V. Verin、D. �. Tosunyan、P. I. Zakharov、V. K. Shevtsov、E. V. Kuznetsov