Stereoselective syntheses. VI. Correlation of central and planar chirality in ferrocene derivatives
โ Scribed by Marquarding, Dieter.; Klusacek, Hans.; Gokel, George.; Hoffmann, Peter.; Ugi, Ivar.
- Book ID
- 120267942
- Publisher
- American Chemical Society
- Year
- 1970
- Tongue
- English
- Weight
- 591 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
We have shown that cymantrene derivatives are better P,N-chelate ligands for palladium-catalyzed allylic alkylation than ferrocenes, which have a similar pentagonal ligand structure to cymantrene derivatives. In particular, the PPh 3 -substituted cymantrene gave a higher enantioselectivity (>98%).
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract A 2,3,4โtriโ__O__โpivaloylated ฮฒโDโgalactopyranosyl azide bearing a hydroxyโfunctionalized spacer unit at the Cโ6 position of the galactose was synthesized and immobilized on the solid phase by using a polymerโbound chlorosilane. The azide was reduced to the corresponding galactopyranos