{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T01:29:45Z","timestamp":1781659785745,"version":"3.54.5"},"reference-count":67,"publisher":"Wiley","issue":"44","license":[{"start":{"date-parts":[[2023,7,8]],"date-time":"2023-07-08T00:00:00Z","timestamp":1688774400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP21K14635"],"award-info":[{"award-number":["JP21K14635"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP21K18968"],"award-info":[{"award-number":["JP21K18968"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2023,8,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Cross\u2010pinacol coupling of two different carbonyl compounds was achieved through successive one\u2010electron transfer processes under photocatalytic conditions. In the reaction, an umpoled anionic carbinol synthon was generated in\u2005situ to react nucleophilically with a second electrophilic carbonyl compound. It was revealed that a CO\n                    <jats:sub>2<\/jats:sub>\n                    additive promoted the photocatalytic generation of the carbinol synthon to suppress undesired radical dimerization. A wide variety of aromatic and aliphatic carbonyl substrates underwent the cross\u2010pinacol coupling to afford the corresponding unsymmetric vicinal 1,2\u2010diols, in which even a combination of carbonyl reactants with similar structures such as two aldehydes and two ketones were also well tolerated with high cross\u2010coupling selectivity.\n                  <\/jats:p>","DOI":"10.1002\/chem.202300840","type":"journal-article","created":{"date-parts":[[2023,5,26]],"date-time":"2023-05-26T12:59:56Z","timestamp":1685105996000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Photocatalytic Cross\u2010Pinacol Coupling Promoted by Carbon Dioxide**"],"prefix":"10.1002","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6503-9040","authenticated-orcid":false,"given":"Shintaro","family":"Okumura","sequence":"first","affiliation":[{"name":"Institute for Molecular Science (IMS)  Okazaki Aichi 444-8787 Japan"},{"name":"SOKENDAI (The Graduate University for Advanced Studies)  Okazaki Aichi 444-8787 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teruki","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Institute for Molecular Science (IMS)  Okazaki Aichi 444-8787 Japan"},{"name":"SOKENDAI (The Graduate University for Advanced Studies)  Okazaki Aichi 444-8787 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaoru","family":"Torii","sequence":"additional","affiliation":[{"name":"Institute for Molecular Science (IMS)  Okazaki Aichi 444-8787 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6805-3422","authenticated-orcid":false,"given":"Yasuhiro","family":"Uozumi","sequence":"additional","affiliation":[{"name":"Institute for Molecular Science (IMS)  Okazaki Aichi 444-8787 Japan"},{"name":"SOKENDAI (The Graduate University for Advanced Studies)  Okazaki Aichi 444-8787 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,7,8]]},"reference":[{"key":"e_1_2_9_1_1","unstructured":"For selected reviews on pinacol coupling see:"},{"key":"e_1_2_9_2_2","doi-asserted-by":"crossref","unstructured":"A. Chatterjee N.\u2005N. Joshi 2006 62 12137;","DOI":"10.1016\/j.tet.2006.09.002"},{"key":"e_1_2_9_3_2","doi-asserted-by":"crossref","unstructured":"T. Hirao Catalytic Reductive Coupling of Carbonyl Compounds - The Pinacol Coupling Reaction and Beyond.Top. Curr. 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On the other hand relatively electron-rich substrate1\u2009fgave dimer4\u2009ffin ca.23\u2009% NMR yield. Reduction of electron-rich ketyl radicals should be slow to result in forming ketyl radical dimers."},{"key":"e_1_2_9_38_1","unstructured":"In the presence of 5\u2005mL CO2 3\u2009eLwas obtained in 60\u2009% NMR yield. The yield of3\u2009eLincreased to 75\u2009% NMR yield (71\u2009% isolated yield) when 20\u2005mL of CO2was used where carboxylated product6\u2009ewas formed in less than 2\u2009% yield."},{"key":"e_1_2_9_39_1","unstructured":"Diol3\u2009lAwas obtained in 68\u2009% NMR yield in the presence of 5\u2005mL CO2. When 20\u2005mL of CO2was used the yield of3\u2009lAincreased to 76\u2009% NMR yield (56\u2009% isolated yield)."},{"key":"e_1_2_9_40_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja0288136"},{"key":"e_1_2_9_41_1","doi-asserted-by":"publisher","DOI":"10.1021\/ol4032045"},{"key":"e_1_2_9_42_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-1985-31416"},{"key":"e_1_2_9_43_1","unstructured":"Selected recent examples on CO2-mediated reactions;"},{"key":"e_1_2_9_44_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202213636"},{"key":"e_1_2_9_44_3","doi-asserted-by":"publisher","DOI":"10.1002\/ange.202213636"},{"key":"e_1_2_9_45_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.202204073"},{"key":"e_1_2_9_46_1","first-page":"714","volume":"27","author":"Roth H. 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