English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The chiral ligand precursor systems [1-Cp 1 -R 1 -2-R 2 -2-Cp 2 ]ethane 5a-d bearing two different cyclopentadienyl fragments (Cp 1 , Cp 2  = Cp, Ind, Flu) and a variable bridge substitution pattern (R 1 , R 2 =H, Ph, cyclopentyl, cyclohexyl) were prepared starting from the corresponding epoxides. The solid state structures of six organic intermediates are reported in order to prove the stereochemistry of the ligand forming reactions. Treatment of the dilithio salts of 5a-d with ZrCl 4  in CH 2 Cl 2  afforded chiral ansa-zirconocene dichlorides (6a-d).

zeitschrift für naturforschung b

Synthesis of Ethylene Bridged Biscyclopentadiene Ligand Precursor Compounds and Some of their ansa-Zirconocene Derivatives via Chiral Epoxides: A Synthetic Strategy of High Variability