Babaee S, Zarei M, Sepehrmansourie H, Zolfigol MA, Rostamnia S. Synthesis of Metal-Organic Frameworks MIL-101(Cr)-NH
2 Containing Phosphorous Acid Functional Groups: Application for the Synthesis of
N-Amino-2-pyridone and Pyrano [2,3-
c]pyrazole Derivatives via a Cooperative Vinylogous Anomeric-Based Oxidation.
ACS OMEGA 2020;
5:6240-6249. [PMID:
32258858 PMCID:
PMC7114146 DOI:
10.1021/acsomega.9b02133]
[Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 03/05/2020] [Indexed: 05/24/2023]
Abstract
In the current paper, we successfully developed and used metal-organic frameworks (MOFs) based on MIL-101(Cr)-NH2 with phosphorus acid functional groups MIL-101(Cr)-N(CH2PO3H2)2. The synthesized metal-organic frameworks (MOFs) as a multi-functional heterogeneous and nanoporous catalyst were used for the synthesis of N-amino-2-pyridone and pyrano [2,3-c]pyrazole derivatives via reaction of ethyl cyanoacetate or ethyl acetoacetate, hydrazine hydrate, malononitrile, and various aldehydes. The final step of the reaction mechanism was preceded by a cooperative vinylogous anomeric-based oxidation. Recycle and reusability of the described catalyst MIL-101(Cr)-N(CH2PO3H2)2 were also investigated.
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