Metal-Free Sulfonylative Spirocyclization of Indolyl-ynones via Insertion of Sulfur Dioxide: Access to Sulfonated Spiro[cyclopentenone-1,3′-indoles]

A three-component sulfonylative spirocyclization of indolyl ynones with aryldiazonium salts and a sulfur dioxide surrogate of DABCO·(SO2)2 has been developed, providing a range of sulfonated spiro­[cyclopentenone-1,3′-indoles] in moderate to good yields. This transformation was initiated by an in si...

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Veröffentlicht in:	Organic letters 2021-10, Vol.23 (20), p.7992-7995
Hauptverfasser:	Chen, Zhichao, Zhang, Hong, Zhou, Shu-Feng, Cui, Xiuling
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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