The Sn Mechanism In Aromatic Compounds. Part Xxxix. Halogen Mobility And Reagent Strength In Reactions Of Some Heavy Atom Neutral Nucleophiles (thiourea, N-acetylthiourea, And Selenourea) With 1-chloro- And 1-fluoro-2,4-dinitrobenzenes

dc.creatorMiller J.
dc.creatorYeung H.W.
dc.date1972
dc.date2015-06-26T17:50:53Z
dc.date2015-11-26T14:23:37Z
dc.date2015-06-26T17:50:53Z
dc.date2015-11-26T14:23:37Z
dc.date.accessioned2018-03-28T21:25:39Z
dc.date.available2018-03-28T21:25:39Z
dc.identifier
dc.identifierJournal Of The Chemical Society, Perkin Transactions 2. , v. , n. 11, p. 1553 - 1557, 1972.
dc.identifier1472779X
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-37049138025&partnerID=40&md5=136fda39b46759ff497336c969498a31
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/96530
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/96530
dc.identifier2-s2.0-37049138025
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1245166
dc.descriptionThe rates, and some derived parameters, of reaction of three heavy atom neutral nucleophiles (thiourea, N-acetylthiourea, and selenourea) with 1-fluoro- and 1-chloro-2,4-dinitrobenzene are measured and used to estimate (a) the mobilities of fluorine relative to chlorine, an important mechanistic feature of the usual (addition-elimination) SNAr reactions; and (b) the strength of the reagents. Results are compared with those for a range of neutral and anionic light (Periodic Table first row) and heavy atom (Periodic Table second or higher row) nucleophiles. Results for 1-iodo-2,4-dinitrobenzene are included where available. A marked reduction in F:Cl mobility ratios (which are matched by F:heavy halogen ratios), well known in following a sequence from light to heavy atom anionic nucleophiles, is now shown to occur also with neutral nucleophiles.
dc.description
dc.description11
dc.description1553
dc.description1557
dc.languageen
dc.publisher
dc.relationJournal of the Chemical Society, Perkin Transactions 2
dc.rightsaberto
dc.sourceScopus
dc.titleThe Sn Mechanism In Aromatic Compounds. Part Xxxix. Halogen Mobility And Reagent Strength In Reactions Of Some Heavy Atom Neutral Nucleophiles (thiourea, N-acetylthiourea, And Selenourea) With 1-chloro- And 1-fluoro-2,4-dinitrobenzenes
dc.typeArtículos de revistas


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