1942
DOI: 10.1002/jlac.19425510103
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Die Halogenierung ungesättigter Substanzen in der Allylstellung

Abstract: Man we8 aus versehiedenen Reaktionen, daI3 Wasserstof f an Kohlenstoff bereits dam eine gesteigerte Reaktionsfahigkeit besitzt, wenn sich in a,P-Stellung zu seinem Treeratom auch nw eine einzige C=C-Doppelbindung befindet. So greifen Sauerstoff l ) , gewisse Chinonea), Selendioxyd3) und gelegentlich auch andere O~ydationsmittel~) bei der Reaktion mit ungesattigten Substanzen vielfach nicht an der Doppelbindung, sondern an dem der Doppelbindung nachst benachbarten Kohlenstoff unter Substitution von Wasserstoff … Show more

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Cited by 227 publications
(81 citation statements)
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“…Dimethyl suberate (13) was reacted with MeMgBr to afford 2,9-dimethyldecane-2,9-diol (14; 86 % yield), [15] which was then treated with a concentrated aqueous HCl solution to give 2,9-dichloro-2,9-dimethyldecane (15; 91 % yield; Scheme 2). [16] Friedel-Crafts alkylation of pyrene (6) with dichloride 15 in the presence of AlCl 3 then furnished 2,9-dimethyl-2,9-bis(2-pyrenyl)decane (16; 62 % yield).…”
mentioning
confidence: 99%
“…Dimethyl suberate (13) was reacted with MeMgBr to afford 2,9-dimethyldecane-2,9-diol (14; 86 % yield), [15] which was then treated with a concentrated aqueous HCl solution to give 2,9-dichloro-2,9-dimethyldecane (15; 91 % yield; Scheme 2). [16] Friedel-Crafts alkylation of pyrene (6) with dichloride 15 in the presence of AlCl 3 then furnished 2,9-dimethyl-2,9-bis(2-pyrenyl)decane (16; 62 % yield).…”
mentioning
confidence: 99%
“…Essa metodologia pode ser estendida para a preparação de N-halossacarinas, sendo, inclusive, a utilizada por Chattaway 9 há 100 anos para preparação da primeira N-halossacarina, a NCSac, através do borbulhamento de cloro em uma solução aquosa e gelada de sacarinato de sódio. Desta forma, em geral, as N-halossacarinas têm sido preparadas a partir de sacarinato de sódio (ou prata) com halogênios em diferentes condições [10][11][12][13] (Esquema 1). Todavia, outras metodologias alternativas e mais elaboradas também estão descritas na literatura 12,[14][15][16] .…”
Section: Preparação De N-halossacarinasunclassified
“…(CHzCO) 2N-1 2 (or S-) ~ "allylic" brominating agent [6] in 1942, N-bromoimides have been the favored source for generating imidyl radicals. Inevitably, the progress of imidyl radical chemistry has been complicated by bromine atom reactions and at times has been overshadowed by heightened interest in the bromination [4] process itself.…”
Section: Rconcor 'mentioning
confidence: 99%