A versatile synthesis of tricyclic analogues of quinolone antibacterial agents: Use of a novel reformatsky reaction
作者:Joseph P Michael、Charles B de Koning、Trevor V Stanbury
DOI:10.1016/s0040-4039(97)82976-0
日期:1996.12
A simple synthesis of tricyclic analogues of the quinolone antibiotics bearing a diverse range of substituents on the aromatic ring is described. The key steps involve unprecedented Reformatsky reaction between diethyl bromomalonate and N-arylpyrrolidine-2-thiones 8, followed by cyclisation of the resulting enaminone intermediates 9 in polyphosphoric acid.
Novel heterocycles.<b>6</b>. The condensation of ethyl<i>o</i>-fluorobenzoyl acetate with cyclic imino ethers
作者:Gary M. Coppola、Robert E. Damon
DOI:10.1002/jhet.5570170818
日期:1980.12
The reaction between ethyl o-fluorobenzoylacetate and cyclic imino ethers is described. The products, the corresponding 1,2-fused quinolines (13a-17a), were isolated in good yields. In one instance the uncyclized condensation intermediate 18 was isolated and characterized.