{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T01:45:11Z","timestamp":1792806311812,"version":"4.5.0"},"reference-count":46,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2019,8,28]],"date-time":"2019-08-28T00:00:00Z","timestamp":1566950400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Science and Technology Department of Hubei Province of China","award":["2018ACA152"],"award-info":[{"award-number":["2018ACA152"]}],"id":[{"id":"https:\/\/ror.org\/00tbh0t11","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Chitosan microspheres modified by 2-pyridinecarboxaldehyde were prepared and used in the construction of a heterogeneous catalyst loaded with nano-Cu prepared by a reduction reaction. The chemical structure of the catalyst was investigated by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and X-ray Photoelectron Spectroscopy (XPS). Under mild conditions, such as no ligand at room temperature, the catalyst was successfully applied to catalyze the borylation of \u03b1,\u03b2-unsaturated receptors in a water-methanol medium, yielding 17%\u2013100% of the corresponding \u03b2-hydroxy product. Even after repeated use five times, the catalyst still exhibited excellent catalytic activity.<\/jats:p>","DOI":"10.3390\/polym11091417","type":"journal-article","created":{"date-parts":[[2019,8,28]],"date-time":"2019-08-28T11:23:18Z","timestamp":1566991398000},"page":"1417","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Preparation of Modified Chitosan Microsphere-Supported Copper Catalysts for the Borylation of \u03b1,\u03b2-Unsaturated Compounds"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5272-2927","authenticated-orcid":false,"given":"Wei","family":"Wang","sequence":"first","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zufeng","family":"Xiao","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chaofan","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0970-4840","authenticated-orcid":false,"given":"Kewang","family":"Zheng","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yin","family":"Luo","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yumin","family":"Dong","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zitong","family":"Shen","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Li","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9772-3034","authenticated-orcid":false,"given":"Caiqin","family":"Qin","sequence":"additional","affiliation":[{"name":"School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China"},{"name":"Key Laboratory of Biological Resources and Environmental Biotechnology, Wuhan University, Wuhan 430000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Rase, H.F. 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