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Commun."],"abstract":"<jats:p>\n                    A novel method was devised for regioselective ring expansion of spirocyclopropanes to spirocyclobutanes with stabilized sulfonium ylides, affording 1,2-\n                    <jats:italic>trans<\/jats:italic>\n                    -disubstituted 6,8-dioxaspiro[3.5]nonane-5,9-diones without the formation of any isomers.\n                  <\/jats:p>","DOI":"10.1039\/d3cc06033k","type":"journal-article","created":{"date-parts":[[2024,3,14]],"date-time":"2024-03-14T19:21:25Z","timestamp":1710444085000},"page":"4537-4540","update-policy":"https:\/\/doi.org\/10.1039\/rsc_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Ring expansion of spirocyclopropanes with stabilized sulfonium ylides: highly diastereoselective synthesis of cyclobutanes"],"prefix":"10.1039","volume":"60","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5186-8868","authenticated-orcid":false,"given":"Hisanori","family":"Nambu","sequence":"first","affiliation":[{"name":"Faculty of Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan"},{"name":"Laboratory of Pharmaceutical Manufacturing Chemistry, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuta","family":"Onuki","sequence":"additional","affiliation":[{"name":"Faculty of Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kana","family":"Aso","sequence":"additional","affiliation":[{"name":"Faculty of Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Momoka","family":"Kanamori","sequence":"additional","affiliation":[{"name":"Faculty of Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keisuke","family":"Tomohara","sequence":"additional","affiliation":[{"name":"Laboratory of Pharmaceutical Manufacturing Chemistry, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kiyoshi","family":"Tsuge","sequence":"additional","affiliation":[{"name":"Graduate School of Science and Engineering, University of Toyama, Gofuku, Toyama 930-8555, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayuki","family":"Yakura","sequence":"additional","affiliation":[{"name":"Faculty of Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"292","published-online":{"date-parts":[[2024]]},"reference":[{"key":"D3CC06033K\/cit1a\/1","doi-asserted-by":"crossref","first-page":"8701","DOI":"10.1021\/acs.chemrev.9b00111","volume":"119","author":"Kaiser","year":"2019","journal-title":"Chem. 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