CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions

A heterogeneous CoOCN composite was synthesized via a one-pot reaction of [Co(NO3)2] and urea at 500 °C in a muffle furnace. The composite was fully characterized by FTIR, Raman, powder XRD, and XPS techniques. The catalyst was found to be efficient for the hydrations of aryl alkynes and nitriles un...

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Main Authors: Avinash K. Srivastava, Himanshu Khandaka, Raj Kumar Joshi
Format: Article
Language:English
Published: Georg Thieme Verlag KG 2023-03-01
Series:SynOpen
Subjects:
Online Access:http://www.thieme-connect.de/DOI/DOI?10.1055/a-2025-2759
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author Avinash K. Srivastava
Himanshu Khandaka
Raj Kumar Joshi
author_facet Avinash K. Srivastava
Himanshu Khandaka
Raj Kumar Joshi
author_sort Avinash K. Srivastava
collection DOAJ
description A heterogeneous CoOCN composite was synthesized via a one-pot reaction of [Co(NO3)2] and urea at 500 °C in a muffle furnace. The composite was fully characterized by FTIR, Raman, powder XRD, and XPS techniques. The catalyst was found to be efficient for the hydrations of aryl alkynes and nitriles under aerobic conditions. In addition, the catalyst exhibits high catalytic performance for the reduction of nitroarenes under inert gas-free conditions. This multitasking CoOCN composite was found to be highly suitable for all derivatives of nitrobenzene, alkynes, and nitriles because good to excellent yields were obtained. The catalyst was recovered quantitatively from the reaction mixture by simple filtration and consequently reused for seven consecutive cycles in all reactions without significant loss of catalytic activity. Hence, the synthesized CN-doped CoOCN composite worked as a multitasking catalyst for various value-added organic transformations, and it is highly economical and reusable for up to seven catalytic cycles without any activation, with even the last cycle producing reasonable yields of up to 48–50%.
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spelling doaj.art-03f3cd9413f54a3688bb9320ce1929422023-03-27T23:09:08ZengGeorg Thieme Verlag KGSynOpen2509-93962023-03-01070112112910.1055/a-2025-2759CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro ReductionsAvinash K. SrivastavaHimanshu KhandakaRaj Kumar JoshiA heterogeneous CoOCN composite was synthesized via a one-pot reaction of [Co(NO3)2] and urea at 500 °C in a muffle furnace. The composite was fully characterized by FTIR, Raman, powder XRD, and XPS techniques. The catalyst was found to be efficient for the hydrations of aryl alkynes and nitriles under aerobic conditions. In addition, the catalyst exhibits high catalytic performance for the reduction of nitroarenes under inert gas-free conditions. This multitasking CoOCN composite was found to be highly suitable for all derivatives of nitrobenzene, alkynes, and nitriles because good to excellent yields were obtained. The catalyst was recovered quantitatively from the reaction mixture by simple filtration and consequently reused for seven consecutive cycles in all reactions without significant loss of catalytic activity. Hence, the synthesized CN-doped CoOCN composite worked as a multitasking catalyst for various value-added organic transformations, and it is highly economical and reusable for up to seven catalytic cycles without any activation, with even the last cycle producing reasonable yields of up to 48–50%.http://www.thieme-connect.de/DOI/DOI?10.1055/a-2025-2759heterogeneous catalystscobalt oxidealkyne hydrationnitrile hydrationnitro reductioncatalysis
spellingShingle Avinash K. Srivastava
Himanshu Khandaka
Raj Kumar Joshi
CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions
SynOpen
heterogeneous catalysts
cobalt oxide
alkyne hydration
nitrile hydration
nitro reduction
catalysis
title CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions
title_full CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions
title_fullStr CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions
title_full_unstemmed CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions
title_short CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions
title_sort cn doped cobalt oxide composite an economic and reusable catalyst with multitasking catalytic capability for alkyne and nitrile hydrations and nitro reductions
topic heterogeneous catalysts
cobalt oxide
alkyne hydration
nitrile hydration
nitro reduction
catalysis
url http://www.thieme-connect.de/DOI/DOI?10.1055/a-2025-2759
work_keys_str_mv AT avinashksrivastava cndopedcobaltoxidecompositeaneconomicandreusablecatalystwithmultitaskingcatalyticcapabilityforalkyneandnitrilehydrationsandnitroreductions
AT himanshukhandaka cndopedcobaltoxidecompositeaneconomicandreusablecatalystwithmultitaskingcatalyticcapabilityforalkyneandnitrilehydrationsandnitroreductions
AT rajkumarjoshi cndopedcobaltoxidecompositeaneconomicandreusablecatalystwithmultitaskingcatalyticcapabilityforalkyneandnitrilehydrationsandnitroreductions