{"title":"Rates of base-catalysed hydrolysis of substituted aryl benzoates","authors":"Z. S. Chaw, A. Fischer, D. A. Happer","doi":"10.1039/J29710001818","DOIUrl":null,"url":null,"abstract":"Twenty-seven 3- and 4-substituted aryl benzoates have been hydrolysed with sodium hydroxide in ethanol–water (6:4 v/v). The kinetic data are correlated by the Hammett equation with ρ= 1·93. Rate enhancements for para-conjugatively electron-withdrawing substituents (–M) are small, diagnostic of a transition state in which there is at most only slight fission of the aryloxy-carbon bond.","PeriodicalId":17268,"journal":{"name":"Journal of The Chemical Society B: Physical Organic","volume":"43 1","pages":"1818-1819"},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chemical Society B: Physical Organic","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/J29710001818","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
Twenty-seven 3- and 4-substituted aryl benzoates have been hydrolysed with sodium hydroxide in ethanol–water (6:4 v/v). The kinetic data are correlated by the Hammett equation with ρ= 1·93. Rate enhancements for para-conjugatively electron-withdrawing substituents (–M) are small, diagnostic of a transition state in which there is at most only slight fission of the aryloxy-carbon bond.