15244-99-2Relevant academic research and scientific papers
(Alkoxycarbonyl)- and [(aryloxy)carbonyl]cobalt carbonyls
Tasi, Miklós,Pályi, Gyula
, p. 1523 - 1528 (2008/10/08)
(Alkoxycarbonyl)cobalt tetracarbonyls (1) were synthesized from Co2(CO)8 in THF and from ICo(CO)4 by the reaction with the corresponding alkali-metal alkoxides in saturated hydrocarbons using crown ethers as solid/liquid phase-transfer catalysts. Both 1 and, for the first time, [(aryloxy)carbonyl]cobalt tetracarbonyls (2) were obtained in a homogeneous system containing ICo(CO)4 and alkali-metal alkoxides or phenoxides, respectively, in THF. Tertiary phosphine derivatives of 1 and 2 were also prepared. The formation of complexes 1 and 2 proceeds through the ionic intermediates [ICo(COOR)(CO)3]- which were characterized by their infrared spectra. Analogous ionic species [Co(COOR)2(CO)3]- are formed from the reaction of complexes 1 and RO. [(Allyloxy)carbonyl]cobalt tetracarbonyl shows thermal decarboxylation at 20°C yielding (η3-C3H5)Co(CO)3 and CO2.
