Heterocyclic analogs of thioflavones: synthesis and NMR spectroscopic investigations.
نویسندگان
چکیده
The synthesis of several hitherto unknown heterocyclic ring systems derived from thioflavone is described. Coupling of various o-haloheteroarenecarbonyl chlorides with phenylacetylene gives 1-(o-haloheteroaryl)-3-phenylprop-2-yn-1-ones, which were treated with NaSH in refluxing ethanol to yield the corresponding bi- and tricyclic annelated 2-phenylthiopyran-4-ones. Detailed NMR spectroscopic investigations of the ring systems and their precursors are presented.
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عنوان ژورنال:
- Molecules
دوره 14 9 شماره
صفحات -
تاریخ انتشار 2009