{"title":"Synthesis of 5-Amino-1H-pyrazole-4-carbonitriles from N-Tosylhydrazones and Its Application in the Preparation of Ibrutinib","authors":"Qian Zhang, and , Meng Tang*, ","doi":"10.1021/acs.joc.4c0296210.1021/acs.joc.4c02962","DOIUrl":null,"url":null,"abstract":"<p >A facile method for preparing 5-amino-1<i>H</i>-pyrazole-4-carbonitriles was developed. The reaction exhibited compatibility to various substrates, and different 5-amino-1<i>H</i>-pyrazole-4-carbonitriles were prepared efficiently. Ibrutinib was prepared under palladium-free conditions in six steps in 32.7% overall yield.</p>","PeriodicalId":57,"journal":{"name":"Journal of Organic Chemistry","volume":"90 10","pages":"3805–3808 3805–3808"},"PeriodicalIF":3.6000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Organic Chemistry","FirstCategoryId":"1","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.joc.4c02962","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
A facile method for preparing 5-amino-1H-pyrazole-4-carbonitriles was developed. The reaction exhibited compatibility to various substrates, and different 5-amino-1H-pyrazole-4-carbonitriles were prepared efficiently. Ibrutinib was prepared under palladium-free conditions in six steps in 32.7% overall yield.
期刊介绍:
Journal of Organic Chemistry welcomes original contributions of fundamental research in all branches of the theory and practice of organic chemistry. In selecting manuscripts for publication, the editors place emphasis on the quality and novelty of the work, as well as the breadth of interest to the organic chemistry community.