Lipase-Catalyzed Phospha-Michael Addition Reactions under Mild Conditions

Autor: Yuelin Xu, Fengxi Li, Jinglin Ma, Jiapeng Li, Hanqing Xie, Chunyu Wang, Peng Chen, Lei Wang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Molecules, Vol 27, Iss 22, p 7798 (2022)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules27227798
Popis: Organophosphorus compounds are the core structure of many active natural products. The synthesis of these compounds is generally achieved by metal catalysis requiring specifically functionalized substrates or harsh conditions. Herein, we disclose the phospha-Michael addition reaction of biphenyphosphine oxide with various substituted β-nitrostyrenes or benzylidene malononitriles. This biocatalytic strategy provides a direct route for the synthesis of C-P bonds with good functional group compatibility and simple and practical operation. Under the optimal conditions (styrene (0.5 mmol), biphenyphosphine oxide (0.5 mmol), Novozym 435 (300 U), and EtOH (1 mL)), lipase leads to the formation of organophosphorus compounds in yields up to 94% at room temperature. Furthermore, we confirm the role of the catalytic triad of lipase in this phospha-Michael addition reaction. This new biocatalytic system will have broad applications in organic synthesis.
Databáze: Directory of Open Access Journals
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