Correction: Enantioselective iridium catalyzed α-alkylation of azlactones by a tandem asymmetric allylic alkylation/aza-Cope rearrangement

Abstract

Correction for ‘Enantioselective iridium catalyzed α-alkylation of azlactones by a tandem asymmetric allylic alkylation/aza-Cope rearrangement’ by Xue-Dan Bai et al., Chem. Commun., 2019, 55, 5547–5550.

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The authors regret that TS-2 in Scheme 2 of the original manuscript was drawn incorrectly in a chair-like conformation, whereas it should be shown in a boat-like conformation. The correct version of Scheme 2 is shown below. The sentence describing Scheme 2 in the final paragraph on page 5548 beginning “Therefore, we assumed that two diastereoisomers…”, should be corrected to “Therefore, we assume that two diastereoisomers of 4 (major) and 5 (minor) are formed during the reaction process, which undergo preferential chair-like TS-1 and boat-like TS-2 to yield the corresponding products (Scheme 2).” Accordingly, the footnote in ref. 16 should be deleted. The authors confirm that this error does not affect any conclusions of the paper.

Scheme 2 Proposed aza-Cope-rearrangement to generate E-3a and ent-E-3a.

In addition, in ref. 8, “azlactone” was incorrectly shown as “azactone”. The correct version of ref. 8 is shown below.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

References

1. For reviews on azlactone chemistry, (a) A.-N. R. Alba and R. Rios, Chem. – Asian J., 2011, 6, 720; (b) P. P. de Castro, A. G. Carpanez and G. W. Amarante, Chem. – Eur. J., 2016, 22, 10294; (c) J. S. Fisk, R. A. Mosey and J. J. Tepe, Chem. Soc. Rev., 2007, 36, 1432.

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