An unexpected route for the synthesis of a new spiroheterocyclic system from ninhydrin

Quevedo‐Acosta, Yovanny; Pérez‐Redondo, Adrián; Quevedo, Rodolfo

doi:10.1016/j.tetlet.2015.07.081

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Spirofuran-isoindole1

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“…However, the Quevedo group disclosed that the reaction between ninhydrin 1 and phenylethylamine (2 : 1 ratio) generated Ruhemann's purple 141, along with the formation of the new benzo-fused spiroheterocyclic system 142 (Scheme 50). 133 The spiro compound 142 was formed through the rearrangement of the ninhydrin ring structure. The structure of the newly formed compound was established using correlation spectroscopy and single crystal X-ray diffraction study.…”

Section: Spirofuran-isoindolementioning

confidence: 99%