{"title":"A Convenient One-Pot Synthesis of Novel 1,4-Dihydro-1,2-Benzoxaphosphinino[4,3-C]Pyrazoles","authors":"Tarik E. Ali, Mohammed A. Assiri","doi":"10.3987/com-23-14899","DOIUrl":"https://doi.org/10.3987/com-23-14899","url":null,"abstract":"","PeriodicalId":13166,"journal":{"name":"Heterocycles","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136004452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
– The construction of 1-azaspiro[4.4]nonane framework was achieved via the key Stevens rearrangement reaction of the Weinreb amide. And the subsequent steps mediated by the carbonyl of Weinreb amide led to the concise formal synthesis of (±)-cephalotaxine. Further development and application of asymmetric Stevens rearrangement of the Weinreb amide are underway. Cephalotaxine
{"title":"Concise Synthesis of (±)-Cephalotaxine","authors":"Jian Zhang, Hongxia Dai, Huili Ding, Yu Fan, Hui Chen, Ming Jing","doi":"10.3987/com-22-14774","DOIUrl":"https://doi.org/10.3987/com-22-14774","url":null,"abstract":"– The construction of 1-azaspiro[4.4]nonane framework was achieved via the key Stevens rearrangement reaction of the Weinreb amide. And the subsequent steps mediated by the carbonyl of Weinreb amide led to the concise formal synthesis of (±)-cephalotaxine. Further development and application of asymmetric Stevens rearrangement of the Weinreb amide are underway. Cephalotaxine","PeriodicalId":13166,"journal":{"name":"Heterocycles","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70398427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and Characterization of Some Novel Heteroannulated Chromeno[4,3-b]quinolines","authors":"Magdy A. Ibrahim, Najla A. Alshaye","doi":"10.3987/com-22-14770","DOIUrl":"https://doi.org/10.3987/com-22-14770","url":null,"abstract":"","PeriodicalId":13166,"journal":{"name":"Heterocycles","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70398755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Min Zhou, Yong-Hui He, Hui-Chun Geng, S. Qiu, Shih‐Wei Chen, Song Lu, Fu-Wen Yang, Jingqi Wei
{"title":"(7S)-Macaureas A and B, Two Urea Analogues from the Roots of Lepidium meyenii","authors":"Min Zhou, Yong-Hui He, Hui-Chun Geng, S. Qiu, Shih‐Wei Chen, Song Lu, Fu-Wen Yang, Jingqi Wei","doi":"10.3987/com-23-14828","DOIUrl":"https://doi.org/10.3987/com-23-14828","url":null,"abstract":"","PeriodicalId":13166,"journal":{"name":"Heterocycles","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70401156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and Radical Scavenging Activities of Tocopherol Analogs Containing Heterocyclic Rings","authors":"Yuta Okayama, K. Inami, M. Mochizuki","doi":"10.3987/com-23-14829","DOIUrl":"https://doi.org/10.3987/com-23-14829","url":null,"abstract":"","PeriodicalId":13166,"journal":{"name":"Heterocycles","volume":"33 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70401173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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