T. Abram, R. Baker, C. Exon
1982
Citations
0
Influential Citations
8
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
(η1-Allyl)dicarbonyl(η5-cyclopentadienyl)iron has been treated with various electron-deficient cyano- and alkoxycarbonyl-substituted olefins and dimethyl acetylenedicarboxylate. The resulting cyclopentyl–Fp [Fp = Fe(CO)2(cyclopentadienyl)] complexes have been subjected to demetallation reactions employing various reagents. Alkoxycarbonyl esters of the substituted cyclopentanes were isolated by oxidative carboxylation with ceric ammonium nitrate, and cyclic and linear products have been obtained with hydrogen chloride by cleavage of the Fe-C bond. N-Bromopyridinium bromide has yielded a mixture of bromocyclopentane derivatives and cyclo-pentenes. β-Hydride abstraction, with trityl tetrafluoroborate, of the complex (12c) has resulted in the formation of diethyl but-3-enylmalonate.