作者:Makoto Sako、Kazuya Ichinose、Shinobu Takizawa、Hiroaki Sasai
DOI:10.1002/asia.201700471
日期:2017.6.19
Short syntheses of 4‐deoxycarbazomycin B and sorazolon E were established through the condensation of cyclohexanone and commercially available 4‐methoxy‐2,3‐dimethylaniline, followed by PdII‐catalyzed dehydrogenative aromatization/intramolecular C−C bond coupling and deprotection. A chiral dinuclear vanadium complex (Ra,S,S)‐6 mediated the enantioselective oxidative coupling of sorazolon E, affording
通过环己酮与市售的4-甲氧基-2,3-二甲基苯胺的缩合反应建立4-deoxycarbazomycin B和sorazolon E的短合成物,然后通过Pd II催化的脱氢芳构化/分子间C-C键偶联和脱保护作用。手性双核钒配合物(R a ,S,S)-6介导了sorazolon E的对映选择性氧化偶合,提供了良好的对映选择性的(+)-sorazolon E2。