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Correction: Metal-free tandem reaction synthesis of spiro-cyclopropyl fused pyrazolin-5-one derivatives
Man
Liu
a,
Chen-Fei
Liu
a,
Jing
Zhang
a,
Yan-Jun
Xu
*b and
Lin
Dong
*a
aKey Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China. E-mail: dongl@scu.edu.cn
bCollege of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610066, China. E-mail: xuyj@sicnu.edu.cn
First published on 14th March 2019
Abstract
Correction for ‘Metal-free tandem reaction synthesis of spiro-cyclopropyl fused pyrazolin-5-one derivatives’ by Man Liu et al., Org. Chem. Front., 2019, 6, 664–668.
The authors regret that in Fig. 1, Table 2 and Scheme 3 previous versions of the graphics were inadvertently included above the correct graphics. The correct versions are shown below.
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| Fig. 1 Bioactive spiro-pyrazolone heterocyclic molecules. | ||
| a Unless otherwise mentioned all reactions were performed with 0.05 mmol of 1, 3.0 equiv. of 2a, 3.0 equiv. of p-nitrobenzoic acid, toluene (0.5 mL), 120 °C, 12 h, under air. Isolated yield. |
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| Scheme 3 Proposed reaction mechanism. | ||
The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.
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