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. 2022 May 4;13:2457. doi: 10.1038/s41467-022-29986-y

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — Reactions were performed on a 0.2 mmol scale in THF (2 mL) with 5 mol% Cu(I), 10 mol% L5, and 20 mol% Mg(O^tBu)₂. Yield is that of an isolated product. The ee values were determined by HPLC analysis, the d.r. values were determined by ¹H NMR analysis of the crude reaction mixture. ^aCu(CH₃CN)₄BF₄ (15 mol%), L5 (30 mol%), and Mg(O^tBu)₂ (50 mol%) were used. See SI for experimental details.