Intra vs intermolecular amidoalkylation of aromatics
作者:D. Ben-Ishal、I. Sataty、N. Peled、R. Goldshare
DOI:10.1016/s0040-4020(01)89976-2
日期:1987.1
Three types of intramolecular amidoalkylation reactions of aromatics, two endotrigonal and one exotrigonal (I, II, III), leading to indolone, N-acylisoquinolines, isoquinolone and benzazepinone derivatives were studied. In the presence of external aromatic nucleophiles competing intermolecular amidoalkylations were observed (1 → 2,13 → 14). The mechanism and the synthetic limitations of the three types
Metal-Free Formal Oxidative C−C Coupling by In Situ Generation of an Enolonium Species
作者:Daniel Kaiser、Aurélien de la Torre、Saad Shaaban、Nuno Maulide
DOI:10.1002/anie.201701538
日期:2017.5.15
contemporary organic synthesis relies on transformations that are driven by the intrinsic, so‐called “natural”, polarity of chemical bonds and reactive centers. The design of unconventionally polarized synthons is a highly desirable strategy, as it generally enables unprecedented retrosynthetic disconnections for the synthesis of complex substances. Whereas the umpolung of carbonyl centers is a well‐known