{"title":"使用烷基咔嗪酸盐无金属合成 C-3-烷氧基羰基 2H-Indazoles","authors":"Dipti Lai, Suvam Bhattacharjee, Sumit Ghosh, Subrata Sinha, Alakananda Hajra","doi":"10.1055/a-2316-5066","DOIUrl":null,"url":null,"abstract":"<p>A simple, efficient, and environmentally benign method for the direct C-3-alkoxycarbonylation of 2<i>H</i>-indazoles using alkyl carbazates has been developed under metal-free conditions at room temperature. This current protocol represents a facile access to C-3-carboxylic ester derived 2<i>H</i>-indazoles with wide functional group tolerance in good to excellent yields. The mechanistic studies suggest that the reaction proceeds through a radical pathway.</p> ","PeriodicalId":22319,"journal":{"name":"Synlett","volume":"44 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Metal-Free Synthesis of C-3-Alkoxycarbonylated 2H-Indazoles Using Alkyl Carbazates\",\"authors\":\"Dipti Lai, Suvam Bhattacharjee, Sumit Ghosh, Subrata Sinha, Alakananda Hajra\",\"doi\":\"10.1055/a-2316-5066\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A simple, efficient, and environmentally benign method for the direct C-3-alkoxycarbonylation of 2<i>H</i>-indazoles using alkyl carbazates has been developed under metal-free conditions at room temperature. This current protocol represents a facile access to C-3-carboxylic ester derived 2<i>H</i>-indazoles with wide functional group tolerance in good to excellent yields. The mechanistic studies suggest that the reaction proceeds through a radical pathway.</p> \",\"PeriodicalId\":22319,\"journal\":{\"name\":\"Synlett\",\"volume\":\"44 1\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-05-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Synlett\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1055/a-2316-5066\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ORGANIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Synlett","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1055/a-2316-5066","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
Metal-Free Synthesis of C-3-Alkoxycarbonylated 2H-Indazoles Using Alkyl Carbazates
A simple, efficient, and environmentally benign method for the direct C-3-alkoxycarbonylation of 2H-indazoles using alkyl carbazates has been developed under metal-free conditions at room temperature. This current protocol represents a facile access to C-3-carboxylic ester derived 2H-indazoles with wide functional group tolerance in good to excellent yields. The mechanistic studies suggest that the reaction proceeds through a radical pathway.
期刊介绍:
SYNLETT is an international journal reporting research results and current trends in chemical synthesis in short personalized reviews and preliminary communications. It covers all fields of scientific endeavor that involve organic synthesis, including catalysis, organometallic, medicinal, biological, and photochemistry, but also related disciplines and offers the possibility to publish scientific primary data.