MORE EFFICIENT ITERATIVE USES OF TRICARBONYLIRON COMPLEXES ARE POSSIBLE BY DIASTEREOSELECTIVE FORMATION OF ETA(5)-CYCLOHEXADIENYL COMPLEXES

Authors
ANSON CE ATTWOOD MR RAYNHAM TM SMYTH DG STEPHENSON GR
Citation
Ce. Anson et al., MORE EFFICIENT ITERATIVE USES OF TRICARBONYLIRON COMPLEXES ARE POSSIBLE BY DIASTEREOSELECTIVE FORMATION OF ETA(5)-CYCLOHEXADIENYL COMPLEXES, Tetrahedron letters, 38(4), 1997, pp. 505-508
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
38
Issue
4
Year of publication
1997
Pages
505 - 508
Database
ISI
SICI code
0040-4039(1997)38:4<505:MEIUOT>2.0.ZU;2-T
Abstract
Diastereoselective addition of nucleophiles to 1-(RCO)-substituted tri carbonyl(eta(4)-cyclohexadiene)iron(0) complexes, and a diastereoselec tive acid-induced rearrangement to form 1-(branched alkyl)-substituted tricarbony(eta(5)-cyclohexadienyl)iron(1+) salts, are described. Ster eocontrol in the rearrangement has been studied, and HPF6, Ac2O has be en should to be the most suitable acid to promote diastereoselectivity . The product was reacted with LiCH(SO(2)Ph)(2), completing one turn o f an iterative cycle which formed a chiral centre at each step. (C) 19 97, Elsevier Science Ltd. All rights reserved.