| | 1 | Author
| Rainer Diercks, Heindirk Tom Dieck | Requires cookie* | | | Title
| Diazadiene als Steuerliganden in der Homogenen Katalyse, VIII [1] Katalytische Trimerisierung substituierter Acetylencarbonsäureester und Isolierung eines Acetylendicarbonsäureester-Diazadien-Nickel(O)-Addukts Diazadienes as Controlling Ligands in Homogeneous Catalysis, VIII [1] Catalytic Trimerization of Substituted Acetylene Carbonic Acid Esters and Isolation of an Acetylene Dicarbonic Acid Ester Diazadiene Nickel(O) Adduct  | | | | Abstract
| Nickel(O) complexes of diazadienes (dad = RN = CR — C R '=N R) catalyse the trimerization of esters of 2-butynoic acid, phenylpropynoic acid and butynedioic acid to give hexasubstituted benzenes with the unsymmetrical esters 2 as the main products. A primary adduct 7 of acetylene dicarboxylic acid dimethyl ester of the type (dad)Ni(alkyne) could be isolated and characterized by 'H NMR, IR and UV spectroscopy. According to their characteristic CT absorption. 7 and its analogues are shown to persist during catalysis as an active species. | | | |
Reference
| Z. Naturforsch. 39b, 180 (1984); eingegangen am 24. August 1983 | | | |
Published
| 1984 | | | |
Keywords
| Catalytic Trimerization, Diazadiene Nickel Complexes, Alkynes, Hexasubstituted Benzenes, Alkyne Complexes | | | |
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| default:Reihe_B/39/ZNB-1984-39b-0180.pdf | | | | Identifier
| ZNB-1984-39b-0180 | | | | Volume
| 39 | |
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