{"title":"芳香族硝化反应机理在RX (R =烷基、芳基、环丙基、乙烯基)格氏试剂生成中的延伸。离子对塌缩和自由基对塌缩假说","authors":"Ulf Berg , Nicolas Bodineau , Jean-Claude Négrel , Jean-Marc Mattalia , Vitaliy Timokhin , Kishan Handoo , Caroline Marchi , Michel Chanon","doi":"10.1016/S1387-1609(01)01268-3","DOIUrl":null,"url":null,"abstract":"<div><p>The ion pair collapse versus radical pair collapse hypothesis is proposed for the Grignard reagent formation as an extension of the e.t. mechanism of aromatic nitration. Such a scheme, never examined before for the Grignard reaction, could explain the evolution of the ‘free radical character’ depending on experimental conditions and the nature of the substrate.</p></div>","PeriodicalId":100305,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry","volume":"4 7","pages":"Pages 567-570"},"PeriodicalIF":0.0000,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1387-1609(01)01268-3","citationCount":"0","resultStr":"{\"title\":\"Extension of the e.t. mechanism of aromatic nitration to the formation of Grignard reagents of RX (R = alkyl, aryl, cyclopropyl, vinyl). The ion pair collapse versus radical pair collapse hypothesis\",\"authors\":\"Ulf Berg , Nicolas Bodineau , Jean-Claude Négrel , Jean-Marc Mattalia , Vitaliy Timokhin , Kishan Handoo , Caroline Marchi , Michel Chanon\",\"doi\":\"10.1016/S1387-1609(01)01268-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The ion pair collapse versus radical pair collapse hypothesis is proposed for the Grignard reagent formation as an extension of the e.t. mechanism of aromatic nitration. Such a scheme, never examined before for the Grignard reaction, could explain the evolution of the ‘free radical character’ depending on experimental conditions and the nature of the substrate.</p></div>\",\"PeriodicalId\":100305,\"journal\":{\"name\":\"Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry\",\"volume\":\"4 7\",\"pages\":\"Pages 567-570\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1387-1609(01)01268-3\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1387160901012683\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387160901012683","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Extension of the e.t. mechanism of aromatic nitration to the formation of Grignard reagents of RX (R = alkyl, aryl, cyclopropyl, vinyl). The ion pair collapse versus radical pair collapse hypothesis
The ion pair collapse versus radical pair collapse hypothesis is proposed for the Grignard reagent formation as an extension of the e.t. mechanism of aromatic nitration. Such a scheme, never examined before for the Grignard reaction, could explain the evolution of the ‘free radical character’ depending on experimental conditions and the nature of the substrate.
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