{"title":"Optimized synthesis of aroyl-<i>S,N</i>-ketene acetals by omission of solubilizing alcohol cosolvents.","authors":"Julius Krenzer, Thomas J J Müller","doi":"10.3762/bjoc.21.97","DOIUrl":null,"url":null,"abstract":"<p><p>Aroyl-<i>S</i>,<i>N</i>-ketene acetals are obtained by condensation of aroyl chlorides and 2-methyl-<i>N</i>-benzylbenzothiazolium salts in 1,4-dioxane at room temperature in short reaction time in 20-99% yield. This protocol represents a considerable improvement over the standard synthesis in 1,4-dioxane/ethanol mixtures at elevated temperatures.</p>","PeriodicalId":8756,"journal":{"name":"Beilstein Journal of Organic Chemistry","volume":"21 ","pages":"1201-1206"},"PeriodicalIF":2.2000,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12207251/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Beilstein Journal of Organic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.3762/bjoc.21.97","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
Aroyl-S,N-ketene acetals are obtained by condensation of aroyl chlorides and 2-methyl-N-benzylbenzothiazolium salts in 1,4-dioxane at room temperature in short reaction time in 20-99% yield. This protocol represents a considerable improvement over the standard synthesis in 1,4-dioxane/ethanol mixtures at elevated temperatures.
期刊介绍:
The Beilstein Journal of Organic Chemistry is an international, peer-reviewed, Open Access journal. It provides a unique platform for rapid publication without any charges (free for author and reader) – Platinum Open Access. The content is freely accessible 365 days a year to any user worldwide. Articles are available online immediately upon publication and are publicly archived in all major repositories. In addition, it provides a platform for publishing thematic issues (theme-based collections of articles) on topical issues in organic chemistry.
The journal publishes high quality research and reviews in all areas of organic chemistry, including organic synthesis, organic reactions, natural product chemistry, structural investigations, supramolecular chemistry and chemical biology.