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. 2015 Feb 27;54(16):4899–4903. doi: 10.1002/anie.201411924

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© 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

© 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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scheme 2 — Synthesis of a model substrate and proof-of-concept transformations. Reagents and conditions: a) Hoveyda–Grubbs II catalyst, methyl acrylate, CH₂Cl₂, 45 °C, 48 h; b) QuadraSil AP, 0.5 mg per mg of substrate, CH₂Cl₂, RT; c) propylamine (20 mol %), CH₂Cl₂, RT; d) propylamine (20 mol %), PhCO₂H (20 mol %), CH₂Cl₂, RT.