The preparation of two η6-estra-1,3,5(10),6-tetraene tricarbonylchromium complexes 4 and 6 are described. In both cases only one stereoisomer can be isolated, in contrast to other estrane-tricarbonylchromium complexes, where complexations are non-stereoselective. X-ray crystal structural analysis of 4 discloses that only the more sterically hindered β-facial isomer is formed. It is assumed that the 6,7-olefinic moiety exerts a directive influence on the complexation.
|Number of pages||3|
|Journal||Zeitschrift fur Anorganische und Allgemeine Chemie|
|Publication status||Published - 2003|
- Directive effects
- π-Facial selectivity
ASJC Scopus subject areas
- Inorganic Chemistry