PREPARATION AND REACTIVITY OF CUPRATE DERIVATIVES OF LITHIUM 6-LITHIOPIPERONYLATE WITH TRICARBONYL(2-METHOXYCYCLOHEXADIENYL)IRON(1+) HEXAFLUOROPHOSPHATE(1-)
Makaleler > Tam Makale · 1993
Yazarlar: Stephen Thomas ASTLEY, GR STEPHENSON
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 1993, ss 1953-1955
DOI: 10.1039/p19930001953
Özet
Arylcuprate species derived from 6-bromopiperonylic acid have been prepared, and evaluated as nucleophiles in reactions with tricarbonyl(2-methoxycyclohexadienyl)iron(1+) hexafluorophosphate(1-). Use of CuCN in place of Cul for the preparation of the arylcuprate species, gave improved yields of the products obtained from C-C bond formation. Furthermore, by preparing the arylcuprate species at low temperature, competing orthometallation processes were avoided.