421-11-4Relevant academic research and scientific papers
Preparation and properties of (η5-C5H5)Co(CO)(CF3) 2. The reaction of (CF3)2Cd·glyme with CpCo(CO)I2
Ontiveros,Morrison
, p. 1446 - 1448 (2008/10/08)
The reaction of (CF3)2Cd·glyme, where glyme = CH3OCH2CH2OCH3, with (η5-Cp)Co(CO)I2 generates (η5-Cp)Co(CO)(CF3)2 in 63% yield along with (η5-Cp)Co(CO)(CF3)I in 16% yield. The bis(trifluoromethyl) product is also obtained from the interaction of (CF3)2Cd·glyme with CpCo(CO)(CF3)I in 73% yield. The disubstituted species is an air-stable, yellow compound which thermally decomposes only near 175°C. In contrast to the results typically found for main-group element trifluoromethyl halides, CpCo(CO)(CF3)2 is more thermally stable than (η5-Cp)Co(CO)(CF3)I. The reaction of CpCo(CO)(CFg)2 with (CH3)2Cd forms CpCo(CO)(CH3)2 which decomposes at ambient temperature; CpCo(CO)(CF3)(CH3) is unobserved. The reaction with Br2 generates CpCo(CO)(CF3)Br, while photolysis in the presence of PPh3 results in CpCo(PPh3)(CF3)2.
