Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004994676> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W2004994676 endingPage "12" @default.
- W2004994676 startingPage "5" @default.
- W2004994676 abstract "Durch oxydative Addition von Benzylchlorid an (Ph3P)2Ni(C2H4) bei −20°C entsteht (Ph3P)2Ni(CH2Ph)Cl(II). Mit Benzylbromid wird unter vergleichbaren Bedingungen (Ph3P)2Ni(CH2Ph)Br erhalten, das aber mit (Ph3P)2NiBr2 verunreinigt ist. Es wird nachgewiesen, daß die oxydative Addition an (Ph3P)2Ni(C2H4) sowohl nach einem SN2- als auch nach einem Einelektronen-Mechanismus verlaufen kann. (Ph3P)2Ni(σ-CH2Ph)Cl liegt in benzolischer Lösung im Gleichgewicht mit dem blauvioletten (Ph3P)Ni(π-CH2Ph)Cl vor. Die Benzylliganden von II können mit ätherischer Salzsäure (Bildung von Toluol und Dibenzyl) oder mit Quecksilber(II)-Chlorid (Bildung von Benzylquecksilberchlorid) quantitativ abgespalten werden. Mit Triphenylphosphin reagiert II unter Bildung von (Ph3P)3NiCl und Dibenzyl. Oxydative Addition of Benzyl Halides to Bis(triphenylphosphine) Ethylene Nickel(0) By the oxydative addition of benzyl chloride to (Ph3P)2Ni(C2H4) at −20°C (Ph3P)2Ni(CH2Ph)Cl (II) is formed. Under similar conditions benzyl bromide gives (Ph3P)2Ni(CH2Ph)Br, but in an impure state. It is shown, that the oxydative addition to (Ph3P)2Ni(C2H4) may involve both SN2 displacement and one electron mechanismens. In benzene solution an equilibrium between (Ph3P)2Ni(σ-CH2Ph)Cl and the blue violet (Ph3P)Ni(π-CH2Ph)Cl exists. The benzyl ligands of II are split off by the reaction with ethereal hydrochloric acid, forming toluene and dibenzyl, with mercury(II) chloride, forming PhCH2HgCl, or with triphenylphosphine, forming dibenzyl and (Ph3P)3NiCl." @default.
- W2004994676 created "2016-06-24" @default.
- W2004994676 creator A5017337712 @default.
- W2004994676 creator A5037216414 @default.
- W2004994676 creator A5063408052 @default.
- W2004994676 creator A5066964861 @default.
- W2004994676 date "1977-08-01" @default.
- W2004994676 modified "2023-10-03" @default.
- W2004994676 title "Zur oxydativen Addition von Benzylhalogeniden an Bis(triphenylphosphin)-�thylen-nickel" @default.
- W2004994676 cites W1551256533 @default.
- W2004994676 cites W1967558203 @default.
- W2004994676 cites W2004059496 @default.
- W2004994676 cites W2018635505 @default.
- W2004994676 cites W2060442378 @default.
- W2004994676 cites W2062792747 @default.
- W2004994676 cites W2067876282 @default.
- W2004994676 cites W2074074908 @default.
- W2004994676 cites W2079699419 @default.
- W2004994676 cites W2079896560 @default.
- W2004994676 cites W2109519895 @default.
- W2004994676 cites W2166566984 @default.
- W2004994676 cites W2312765618 @default.
- W2004994676 cites W2323431892 @default.
- W2004994676 cites W2950278972 @default.
- W2004994676 cites W2950958925 @default.
- W2004994676 cites W4251377869 @default.
- W2004994676 doi "https://doi.org/10.1002/zaac.19774330101" @default.
- W2004994676 hasPublicationYear "1977" @default.
- W2004994676 type Work @default.
- W2004994676 sameAs 2004994676 @default.
- W2004994676 citedByCount "19" @default.
- W2004994676 crossrefType "journal-article" @default.
- W2004994676 hasAuthorship W2004994676A5017337712 @default.
- W2004994676 hasAuthorship W2004994676A5037216414 @default.
- W2004994676 hasAuthorship W2004994676A5063408052 @default.
- W2004994676 hasAuthorship W2004994676A5066964861 @default.
- W2004994676 hasConcept C108204754 @default.
- W2004994676 hasConcept C155647269 @default.
- W2004994676 hasConcept C161790260 @default.
- W2004994676 hasConcept C178790620 @default.
- W2004994676 hasConcept C185592680 @default.
- W2004994676 hasConcept C2777247709 @default.
- W2004994676 hasConcept C94882840 @default.
- W2004994676 hasConceptScore W2004994676C108204754 @default.
- W2004994676 hasConceptScore W2004994676C155647269 @default.
- W2004994676 hasConceptScore W2004994676C161790260 @default.
- W2004994676 hasConceptScore W2004994676C178790620 @default.
- W2004994676 hasConceptScore W2004994676C185592680 @default.
- W2004994676 hasConceptScore W2004994676C2777247709 @default.
- W2004994676 hasConceptScore W2004994676C94882840 @default.
- W2004994676 hasIssue "1" @default.
- W2004994676 hasLocation W20049946761 @default.
- W2004994676 hasOpenAccess W2004994676 @default.
- W2004994676 hasPrimaryLocation W20049946761 @default.
- W2004994676 hasRelatedWork W1508176305 @default.
- W2004994676 hasRelatedWork W2017086345 @default.
- W2004994676 hasRelatedWork W2028375495 @default.
- W2004994676 hasRelatedWork W2055238939 @default.
- W2004994676 hasRelatedWork W2070433574 @default.
- W2004994676 hasRelatedWork W2078732567 @default.
- W2004994676 hasRelatedWork W2949287124 @default.
- W2004994676 hasRelatedWork W2949332058 @default.
- W2004994676 hasRelatedWork W2952046783 @default.
- W2004994676 hasRelatedWork W2031356784 @default.
- W2004994676 hasVolume "433" @default.
- W2004994676 isParatext "false" @default.
- W2004994676 isRetracted "false" @default.
- W2004994676 magId "2004994676" @default.
- W2004994676 workType "article" @default.