Chemistry Letters p. 291 - 292 (1985)
Update date:2022-08-04
Topics:
Matsuo, Keizo
Ohta, Masanobu
Tanaka, Kuniyoshi
6-Substituted 7,8,9,10-tetrahydrophenanthridin-7-one system was prepared from 3-(2-acylaminophenylthio)cyclohex-2-enones by dehydrative cyclization and concomitant sulfur extrusion with polyphosphoric acid in a single operation.
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