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Liuying Zhao

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Articles

Synthesis of β‐Aminoketones via Arylboronic Acid Catalyzed Decarboxylative Mannich Reactions of Enamines and β‐Ketoacids

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By Beining Wang, Yiding Wang, Jun Li, Liuying Zhao
| Wiley Online Library Verified
Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.
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Synthesis of β‐Aminoketones via Arylboronic Acid Catalyzed Decarboxylative Mannich Reactions of Enamines and β‐Ketoacids

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By Beining Wang, Yiding Wang, Jun Li, Liuying Zhao
| Wiley Online Library Verified
Herein, we report an arylboronic acid-catalyzed Mannich reaction of β-ketoacids and enamines. In this transformation, the enamine served as an imine equivalent to react with the β-ketoacids with the delivery of CO as the sole by-product. A series of β-aminoketones were obtained in yields of 48 % to 96 % under mild reaction conditions with 5 mol % catalyst loading. Additionally, the product was synthesized on a gram scale and further transformations were carried out.
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The Pyrrolidine‐Catalyzed Three‐Component Reactions of Azlactones, N,O‐Acetals and Alcohols: One‐Pot Synthesis of α,β‐Diamino Esters

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By Haipeng Hu, Xin Wu, Liuying Zhao, Beining Wang
| Wiley Online Library Verified
Abstract A pyrrolidine-catalyzed three-component reaction of azlactone, N,O-acetal and alcohol for the synthesis of α,β-diamino ester was reported. The N,O-acetal severed as the imine equivalent to occur Mannich reaction with azlactone, and the in situ generated α-functionalized azlactone subsequently underwent a ring-opening process in the presence of alcohol. A series of α,β-diamino esters were obtained in 36-99% yields under mild reaction conditions.
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