Direct Fluorination of Coumarin, 6-Methyl-coumarin and 7-Alkoxy-coumarins.
β Scribed by Darren Holling; Graham Sandford; Andrei S. Batsanov; Dmitrii S. Yufit; Judith A. K. Howard
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 27 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract magnified image A new series of 3βacylβ6,7,8βsubstituted coumarin derivatives has been synthesized in high yields (79β99%) and characterized by means of elemental analysis, mass spectrometry, IR, and ^1^H NMR spectroscopy. We examined with particular attention the presence of an acyl gr
Triplet-triplet absorption spectra of coumarin and 7-hydrox~coumarin in rigid alcoholic solutions at 1 IFE; were reco&ed. Measurement of ground state depletion allowed the determination of the molar extinction coefficients of the triplet bands, for both compounds. CNDO/S calculations of the triplet-
## Abstract Coumarin analogues bearing an acyl function at position 3, halogens at position 6, substituted or unsubstituted benzyloxy moieties at position 7, and a methyl group at position 8, are synthesized.