Preparative-scale HPLC resolution of metallacyclic η3- allyltricarbonyliron complexes and determination of the absolute configuration by X-ray crystal structure analysis

Journal of Chemical Research - Part S

Volumn , Issue 9, 1999, Pages 578-579

  Schobert, Rainer ^a   Pfab, Hermann ^a   Böhmer, Jutta ^b   Hampel, Frank ^b   Werner, Andreas ^c  

^a QUEEN'S UNIVERSITY BELFAST   (United Kingdom)

^b UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

^c INSTITUT FÜR ORGANISCHE CHEMIE   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

CARBAMIC ACID DERIVATIVE; IRON COMPLEX; LACTAM; LACTONE; SILICA GEL;

ALKYLATION; ARTICLE; CHEMICAL BOND; CHEMICAL REACTION; CHEMICAL STRUCTURE; CRYSTAL STRUCTURE; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; RACEMIC MIXTURE; STRUCTURE ANALYSIS; X RAY ANALYSIS;

EID: 0032885778     PISSN: 03082342     EISSN: None     Source Type: Journal    
DOI: 10.1039/a903070k     Document Type: Article

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26. Developed by Prof. A. Werner, University of Vienna; not commercially available yet.
27. 2 reflect the partitioning of the substrate between the phases, the separation factor α is a measure of the separation selectivity; for a definition see: W. H. Pirkle and J. M. Finn, in Asymmetric Synthesis, ed. J. D. Morrison, Academic Press, New York, 1983, vol. 1, p. 87.
28. For the assignment of the descriptors of the absolute configuration each carbon atom of the allyl unit was considered to be σ-bound to the iron centre.
29. 3 (hfc = heptafluoropropylhydroxymethylene D-camphorate) did not lead to any signal separation.
30. 4Si) 26.9 (4-Me), 35.7 (NMe), 55.1 (C-5), 63.1 (C-2), 65.6 (OMe), 70.7 (C-3), 118.8 (C-4), 203.9, 206.3, 207.2 (FeCO), 222.3 (C-1).