Cobalt-mediated Synthesis of Highly Crowded Steroids: Unusual Observations of Hindered Rotation of a Trimethylsilyl Group
(η5-C5H5)Co(CO)2 catalyses the cycloaddition of silylated enediynes to furnish 1-trimethylsilyl and 1,11-bis(trimethylsilylated) A-ring aromatic steroids which exhibit unexpected hindered rotation of the trimethylsilyl groups.
Butenschoen, Holger,Winkler, Matthias,Vollhardt, K. Peter C.
p. 388 - 390
(2007/10/02)
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