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Conventional photoclick reactions rely on the use of high\u2010energy ultraviolet (UV) light, which suffers from limited penetration depth and cell toxicity. Herein, we proposed a general strategy of efficient green light\u2010induced photoclick reactions by introducing a triplet\u2013triplet annihilation photon upconversion (TTA\u2010UC) system. The TTA\u2010UC system comprises (octaethylporphyrinato) palladium (II) (\n                    <jats:bold>PdOEP<\/jats:bold>\n                    ) as the sensitizer and 9,10\u2010diphenylanthracene (\n                    <jats:bold>DPA<\/jats:bold>\n                    ) as the annihilator, and can effectively convert green light into blue light under incoherent and subsolar light intensity, which can further trigger a series of photoclick reactions based on 9,10\u2010phenanthrenequinone and electron\u2010rich alkenes (\n                    <jats:bold>PQ\u2010ERA<\/jats:bold>\n                    s). The pseudo\u2010first\u2010order kinetics (\n                    <jats:italic>\n                      k\n                      <jats:sub>obs<\/jats:sub>\n                    <\/jats:italic>\n                    ) can reach up to 0.015\u00a0s\n                    <jats:sup>\u22121<\/jats:sup>\n                    under 550\u00a0nm LED irradiation (50\u00a0mW cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    ). This study provides a new approach for realizing photoclick reactions under low\u2010power, long\u2010wavelength, and incoherent light excitation, holding great potential for applications in biological and materials systems.\n                  <\/jats:p>","DOI":"10.1002\/anie.8317220","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T03:51:26Z","timestamp":1790740286000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Efficient Green Light\u2010Induced Photoclick Reactions Enabled by Triplet\u2013Triplet Annihilation Photon Upconversion"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-9233-7126","authenticated-orcid":false,"given":"Qingxin","family":"Luan","sequence":"first","affiliation":[{"name":"College of Science Nanjing Forestry University  Nanjing China"},{"name":"State Key Laboratory of Precision Measurement Technology and Instruments School of Precision Instruments and Optoelectronics Engineering Tianjin University  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7120-0980","authenticated-orcid":false,"given":"Mei","family":"Sang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measurement Technology and Instruments School of Precision Instruments and Optoelectronics Engineering Tianjin University  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuxin","family":"He","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measurement Technology and Instruments School of Precision Instruments and Optoelectronics Engineering Tianjin University  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measurement Technology and Instruments School of Precision Instruments and Optoelectronics Engineering Tianjin University  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna M.","family":"Doze","sequence":"additional","affiliation":[{"name":"Centre For Systems Chemistry Stratingh Institute for Chemistry Faculty For Science and Engineering University of Groningen  Groningen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9453-4924","authenticated-orcid":false,"given":"Lili","family":"Hou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measurement Technology and Instruments School of Precision Instruments and Optoelectronics Engineering Tianjin University  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6942-6534","authenticated-orcid":false,"given":"Youxin","family":"Fu","sequence":"additional","affiliation":[{"name":"College of Science Nanjing Forestry University  Nanjing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0588-8435","authenticated-orcid":false,"given":"Ben L.","family":"Feringa","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Precision Measurement Technology and Instruments School of Precision Instruments and Optoelectronics Engineering Tianjin University  Tianjin China"},{"name":"Centre For Systems Chemistry Stratingh Institute for Chemistry Faculty For Science and Engineering University of Groningen  Groningen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,29]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.0c00799"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.0c01212"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41570\u2010024\u201000633\u2010y"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3CS00883E"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/1521\u20103773(20010601)40:11<2004::AID\u2010ANIE2004>3.0.CO;2\u20105"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/1521\u20103773(20020715)41:14<2596::AID\u2010ANIE2596>3.0.CO;2\u20104"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja044996f"},{"key":"e_1_2_8_9_1","doi-asserted-by":"crossref","DOI":"10.1201\/9781420015195","volume-title":"Handbook of 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