The use of β-ketothioesters for the exceptionally mild preparation of β-ketoamides
作者:Steven V. Ley、Peter R. Woodward
DOI:10.1016/s0040-4039(00)96273-7
日期:——
LEY, STEVEN V.;WOODWARD, PETER R., TETRAHEDRON LETT., 28,(1987) N 26, 3019-3020
作者:LEY, STEVEN V.、WOODWARD, PETER R.
DOI:——
日期:——
Further reactions of t-butyl 3-oxobutanthioate and t-butyl 4-diethyl-phosphono-3-oxobutanthioate : Carbonyl coupling reactions, amination, use in the preparation of 3-acyltetramic acids and application to the total synthesis of fuligorubin A.
作者:Steven V. Ley、Stephen C. Smith、Peter R. Woodward
DOI:10.1016/s0040-4020(01)88210-7
日期:1992.1
for the preparation of homologated derivatives suitable for amination in the presence of silver (I) trifluoroacetate to afford the corresponding β-ketoamides is discussed. In particular Wadsworth-Emmons coupling reactions of (2) with various carbonyl compounds gave good yields of E-substituted products. Many of the β-ketoamides were shown to be suitable precursors for 3-acyltetramic acids using a Dieckmann