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- W2073798539 abstract "The reaction of 1-hydroxyxanthenone (1) and hydroxyquinoline (10, 13) Mannich bases with the reactive phosphacumulated ylides (2), represents a new way for the synthesis of the pyranones and pyranthiones (5, 11, 14). On the other hand, the stabilized phosphorus ylides (6) affect the transylidation of the Mannich base (1) to the corresponding phosphoranylidenes (9). The structure of the resulting new compounds has been confirmed through elemental analysis and spectroscopic results (IR, 1 H, 31 P NMR and MS)." @default.
- W2073798539 created "2016-06-24" @default.
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- W2073798539 date "1991-08-01" @default.
- W2073798539 modified "2023-09-23" @default.
- W2073798539 title "Chemistry of Phosphorus Ylides, 11" @default.
- W2073798539 doi "https://doi.org/10.1515/znb-1991-0821" @default.
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