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Diastereoselective Formation of Substituted (η 3 ‐Allyl)(η 4 ‐diene)ZrCp Complexes by Intramolecular Ligand Interaction
Author(s) -
Erker Gerhard,
Berg Klaus,
Benn Reinhard,
Schroth Gerhard
Publication year - 1984
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198406251
Subject(s) - intramolecular force , diene , chemistry , ligand (biochemistry) , catalysis , metal , transition metal , stereochemistry , medicinal chemistry , photochemistry , organic chemistry , receptor , biochemistry , natural rubber
For the designed synthesis of transition‐metal catalysts for organic reactions a detailed knowledge of the strong intramolecular interactions between the ligands in simple metal complexes is indispensable. In appropriately substituted allyl(diene)ZrCp complexes, such interactions lead to the formation of one isomer of the complex system with very high diastereoselectivity. Thus, the 55 :45 mixture of anti ‐ 2 and syn ‐ 2 rearranges thermally into >95% anti ‐ 1 .