{"title":"Efficient and Environmentally Benign Oxidative Cleavage of Pyrrolidine-2-methanols to γ-Lactams Using 2-Iodobenzamide as a Catalyst and Oxone","authors":"Hema Naga Lakshmi Perumalla, Tomoya Fujiwara, Maki Okada, Kanna Asakubo, Takashi Okitsu, Kengo Kasama, Hisanori Nambu, Takayuki Yakura","doi":"10.1248/cpb.c23-00742","DOIUrl":null,"url":null,"abstract":"</p><p>The oxidative cleavage reaction of pyrrolidine-2-methanols to γ-lactams has been described. In this reaction, [4-iodo-3-(isopropylcarbamoyl)phenoxy]acetic acid and <i>powdered</i> Oxone (2KHSO<sub>5</sub>·KHSO<sub>4</sub>·K<sub>2</sub>SO<sub>4</sub>) were employed as the catalyst and co-oxidant, respectively. The reaction is efficient and environmentally benign because it produces various lactams from readily available substrates in moderate to excellent yields using organocatalyst and inorganic non-toxic co-oxidant.</p>\n<p></p>\n<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/cpb/72/1/72_c23-00742/figure/72_c23-00742.png\"/>\n<span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":9773,"journal":{"name":"Chemical & pharmaceutical bulletin","volume":"36 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical & pharmaceutical bulletin","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1248/cpb.c23-00742","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
引用次数: 0
Abstract
The oxidative cleavage reaction of pyrrolidine-2-methanols to γ-lactams has been described. In this reaction, [4-iodo-3-(isopropylcarbamoyl)phenoxy]acetic acid and powdered Oxone (2KHSO5·KHSO4·K2SO4) were employed as the catalyst and co-oxidant, respectively. The reaction is efficient and environmentally benign because it produces various lactams from readily available substrates in moderate to excellent yields using organocatalyst and inorganic non-toxic co-oxidant.
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