合成了空气/水分稳定,晶体和可储存的手性水杨基恶唑啉基氧化(V)配合物,并公开了其在氢化硅烷作为氢化物源的情况下催化不对称还原酮亚胺的催化应用。获得了广泛的底物范围,高收率和出色的对映选择性(最高99%)。此外,对映体纯α-氨基酯,γ-和δ-内酰胺以及异吲哚啉酮的合成也已使用该方法进行。最后,该方法已应用于具有药物相关性的合成靶标,例如R -(+)-沙丁胺碱和R -(+)-crispine A.
intramolecular radical cyclization reaction via photoredox catalysis was developed for the synthesis of dibenzocycloketone derivatives using methylene blue as a photosensitizer. This strategy could be widely used to synthesize large heterocycles due to the unique reactivity of phosphoranyl radicals formed by a polar/SET crossover between an aromatic carboxylicacid and a phosphine radical cation. Attractive
A Facile Synthetic Method of Herbicidal 2,3-Dihydro-3-methylene-2-substituted-phenyl-1<i>H</i>-isoindol-1-one Derivatives
作者:Jae Nyoung Kim、Eung K. Ryu
DOI:10.1080/00397919608003863
日期:1996.1
Herbicidal 2,3-dihydro-3-methylene-2-substitutedphenyl-1 H-isoindol-1-one derivatives 7 have been synthesized. They were prepared from the easily available phenol derivatives 1 in 5 steps in moderate yields.