Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Saeedeh Farsijani"'
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
Benzo-fused coumarins are prepared from 4-quinolinol by treatment with PPh3 and dialkyl acetylenedicarboxylate. Angular coumarins are prepared from 3-isoquinolinol and 7-hydroxyl coumarine with PPh3 and dialkyl acetylenedicarboxylate.
Externí odkaz:
https://doaj.org/article/d33ff0fc6bc5476da331bbcd4e5615e5
Publikováno v:
Journal of the Mexican Chemical Society. 57
The reactive intermediate generated by the addition of tert-butyl and 1,1,3,3-tetramethyl butyl isocyanide to dialkyl acetylenedicarboxylate was trapped by 7-hydroxycoumarin to produce highly functionalized 4H-chromenes in fairly good yields. When th