Thermische und photochemische Umsetzung von Acetylen mit Metallcarbonylen. Vl1. Cycloadditionen vono-Bis [1-oxo-2-butynyl]-arenen in Gegenwart von Tetracarbonylnickel
In the presence of catalytic amounts of Cp*RuCl(cod), the partially intramolecular cyclotrimerizations of various C-alkynylglycosides and C-diynylglycosides proceeded at ambient temperature to afford C-arylglycosides.
Ru(ii)-catalyzed [2 + 2 + 2] cycloaddition of 1,2-bis(propiolyl)benzenes with monoalkynes leading to substituted anthraquinonesElectronic supplementary information (ESI) available: experimental procedures and analytical data. See http://www.rsc.org/suppdata/cc/b3/b301762a/
[2 + 2 + 2] cycloadditions of 1,2-bis(propiolyl)benzenes with monoalkynes were effectively catalysed by Cp*RuCl(cod) under mild conditions to give substituted anthraquinones in moderate to high yields.