Citation:
Yogesh B. Wagh, Yogesh A. Tayade, Swapnil A. Padvi, Bhupesh S. Patil, Nilesh B. Patil, Dipak S. Dalal. A cesium fluoride promoted efficient and rapid multicomponent synthesis of functionalized 2-amino-3-cyano-4H-pyran and spirooxindole derivatives[J]. Chinese Chemical Letters,
;2015, 26(10): 1273-1277.
doi:
10.1016/j.cclet.2015.06.014
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A rapid, one-pot and highly efficient protocol for the synthesis of pharmaceutically interesting functionalized 2-amino-3-cyano-4H-pyran and spirooxindole derivatives has been developed using commercially available CsF as a catalyst in the reaction of malononitrile and aryl aldehydes or isatins with 1, 3-cyclohexanediones. The major advantages of this methodology are excellent yield at ambient temperature, very short reaction time (5-10 min), and use of an inexpensive catalyst.
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