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Topospecific Reactions of a [5.5.5.5]Fenestradiene with [Fe 2 (CO) 9 ]
Author(s) -
Wang Jing,
GuidettiGrept Régine,
Keese Reinhart,
StoeckliEvans Helen
Publication year - 1997
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19970800414
Subject(s) - chemistry , diene , moiety , allylic rearrangement , medicinal chemistry , hydrocarbon , dimethylformamide , acetal , stereochemistry , organic chemistry , catalysis , natural rubber , solvent
N , N ‐Dimethylformamide dimethyl acetal transforms an allylic OH group, which is part of a tetracyclic hydrocarbon in a unique elimination reaction into a [5.5.5.5]fenestradiene ( 2b → 4 ). In topologically selective reactions of this diene 4 with [Fe 2 (CO) 9 ,], the [Fe(CO) 4 (η 2 ‐diene)] and the [Fe(CO)3(η 4 ‐diene)] complexes 8 and 9 , respectively, are formed by complexation on one side of the diene moiety, whereas complexation on the other side leads to a [Fe(CO) 2 (Cp)] complex 10 .