<HashMap><database>biostudies-literature</database><scores/><additional><omics_type>Unknown</omics_type><volume>7</volume><submitter>Kumar A</submitter><pubmed_abstract>A facile, efficient and environmentally-friendly protocol for the synthesis of xanthenes by graphene oxide based nanocomposite (GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub>) has been developed by one-pot condensation route. The nanocomposite was designed by decorating copper ferrite nanoparticles on graphene oxide (GO) surface via a solution combustion route without the use of template. The as-synthesized GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> composite was comprehensively characterized by XRD, FTIR, Raman, SEM, EDX, HRTEM with EDS mapping, XPS, N&lt;sub>2&lt;/sub> adsorption-desorption and ICP-OES techniques. This nanocomposite was then used in an operationally simple, cost effective, efficient and environmentally benign synthesis of 14H-dibenzo xanthene under solvent free condition. The present approach offers several advantages such as short reaction times, high yields, easy purification, a cleaner reaction, ease of recovery and reusability of the catalyst by a magnetic field. Based upon various controlled reaction results, a possible mechanism for xanthene synthesis over GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> catalyst was proposed. The superior catalytic activity of the GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> nanocomposite can be attributed to the synergistic interaction between GO and CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> nanoparticles, high surface area and presence of small sized CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> NPs. This versatile GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> nanocomposite synthesized via combustion method holds great promise for applications in wide range of industrially important catalytic reactions.</pubmed_abstract><journal>Scientific reports</journal><pagination>42975</pagination><full_dataset_link>https://www.ebi.ac.uk/biostudies/studies/S-EPMC5324042</full_dataset_link><repository>biostudies-literature</repository><pubmed_title>Greener Route for Synthesis of aryl and alkyl-14H-dibenzo [a.j] xanthenes using Graphene Oxide-Copper Ferrite Nanocomposite as a Recyclable Heterogeneous Catalyst.</pubmed_title><pmcid>PMC5324042</pmcid><pubmed_authors>Dhaka RS</pubmed_authors><pubmed_authors>Dash P</pubmed_authors><pubmed_authors>Achary LS</pubmed_authors><pubmed_authors>Rout L</pubmed_authors><pubmed_authors>Kumar A</pubmed_authors></additional><is_claimable>false</is_claimable><name>Greener Route for Synthesis of aryl and alkyl-14H-dibenzo [a.j] xanthenes using Graphene Oxide-Copper Ferrite Nanocomposite as a Recyclable Heterogeneous Catalyst.</name><description>A facile, efficient and environmentally-friendly protocol for the synthesis of xanthenes by graphene oxide based nanocomposite (GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub>) has been developed by one-pot condensation route. The nanocomposite was designed by decorating copper ferrite nanoparticles on graphene oxide (GO) surface via a solution combustion route without the use of template. The as-synthesized GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> composite was comprehensively characterized by XRD, FTIR, Raman, SEM, EDX, HRTEM with EDS mapping, XPS, N&lt;sub>2&lt;/sub> adsorption-desorption and ICP-OES techniques. This nanocomposite was then used in an operationally simple, cost effective, efficient and environmentally benign synthesis of 14H-dibenzo xanthene under solvent free condition. The present approach offers several advantages such as short reaction times, high yields, easy purification, a cleaner reaction, ease of recovery and reusability of the catalyst by a magnetic field. Based upon various controlled reaction results, a possible mechanism for xanthene synthesis over GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> catalyst was proposed. The superior catalytic activity of the GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> nanocomposite can be attributed to the synergistic interaction between GO and CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> nanoparticles, high surface area and presence of small sized CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> NPs. This versatile GO-CuFe&lt;sub>2&lt;/sub>O&lt;sub>4&lt;/sub> nanocomposite synthesized via combustion method holds great promise for applications in wide range of industrially important catalytic reactions.</description><dates><release>2017-01-01T00:00:00Z</release><publication>2017 Feb</publication><modification>2025-04-04T11:24:53.855Z</modification><creation>2019-03-27T02:37:17Z</creation></dates><accession>S-EPMC5324042</accession><cross_references><pubmed>28233832</pubmed><doi>10.1038/srep42975</doi></cross_references></HashMap>