TRIPHENYLPHOSPHINE-MEDIATED CHEMOSELECTIVE SYNTHESIS OF FUNCTIONALIZED SPIRO-IMIDAZOL-4-ONES: Phosphorus, Sulfur, and Silicon and the Related Elements: Vol 179, No 8

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Abstract

Stabilized phosphoranes, obtained from the three-component reaction between dialkyl acetylenedicarboxylates and spiro-hydantoins in the presence of triphenylphosphine, undergo a smooth intramolecular Wittig reaction in boiling toluene to produce functionalized spiro-imidazol-4-ones in good yields.

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TRIPHENYLPHOSPHINE-MEDIATED CHEMOSELECTIVE SYNTHESIS OF FUNCTIONALIZED SPIRO-IMIDAZOL-4-ONES

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TRIPHENYLPHOSPHINE-MEDIATED CHEMOSELECTIVE SYNTHESIS OF FUNCTIONALIZED SPIRO-IMIDAZOL-4-ONES

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