In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 42, No. 7 ( 1987-7-1), p. 853-859
Abstract:
The reaction of dimeric π-allyl palladium chloride with 1-azadienes 1 ( R -N = CH-CH = CH-R') affords the mononuclear complexes (π-Allyl)Pd(L)Cl 2. Two independent intramolecular rotational motions are detected by NMR methods. These complexes (with R ' = Aryl) react with silver tetrafluoroborate, preferentially in the presence of 1, to the cationic complexes [(π-Allyl)Pd(L) 2 ] + BF 4 - , 3, which are also non-rigid with respect to ligand rotation on the NMR time scale. Complexes 3 catalyse the 2 :1-cyclo-cooligomerization of butadiene and 1-azadienes. This reaction to compounds 4 constitutes the first example of a very regio- and stereoselective formation of cyclohexanes from three C = C double bonds. The structure, substitution pattern and conformation of 4 are assigned on the basis of 2D -correlation NMR spectroscopy.
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1987-0710
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1987
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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