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Synthesis 2014; 46(06): 828
DOI: 10.1055/s-0033-1338601
DOI: 10.1055/s-0033-1338601
erratum
Alum-Catalyzed Synthesis of 3-(1H-Pyrrol-2-yl)-2H-chromen-2-ones: A Water–PEG 400 Binary Solvent Mediated, One-Pot, Three-Component Protocol
Further Information
Publication History
Publication Date:
05 March 2014 (online)
![](https://www.thieme-connect.de/media/synthesis/201406/lookinside/thumbnails/10.1055-s-0033-1338601-1.jpg)
The single-crystal X-ray structure of 4c (Figure 4 of the article) shows that the actual products 4a–p are 3-(1H-pyrrol-3-yl)-2H-chromen-2-ones and not 3-(1H-pyrrol-2-yl)-2H-chromen-2-ones as drawn throughout the manuscript and the supporting information. The corrected structures are now shown below.
![Zoom Image](/products/assets/desktop/css/img/icon-figure-zoom.png)
In addition, the original mechanism outlined in Scheme 2 of the article should be revised to involve N-alkylation of 1 by IV rather than the C-alkylation, which is followed by condensation of the enamine to afford the correct constitutional isomer. ��
The authors apologize for these mistakes.