Using a combined directed ortho metalation (DoM) SuzukiMiyaura cross coupling directed remote metalation (DreM) approach, the alkylphenanthrenes (APs) 1-methyl- (5a), 1,7-dimethyl- (5b), 2,7-dimethyl- (5c), 7-ethyl-1-methyl- (15), and 7-tert-butyl-1-methylphenanthrenes (27) have been synthesized in four to seven steps and 21%36% overall yields. In contrast to classical protocols, this method, which may be scaled to gram quantities, provides single isomers of APs in high purity of value as analytical standards for environmental studies. Aminocarbonylation of triflates to N,N-diethylbenzamides (9 [Formula: see text] 10) and anionic Fries rearrangement (23 [Formula: see text] 24) provide other potential links to DoM chemistry.Key words: phenanthrene, directed ortho metalation, SuzukiMiyaura cross coupling, synthesis, polycyclic aromatic hydrocarbon, carbonylation.
利用结合的定向正金属化(DoM)-Suzuki-Miyaura交叉偶联-定向远程金属化(DreM)方法,已合成了烷基菲(APs)1-甲基-(5a)、1,7-二甲基-(5b)、2,7-二甲基-(5c)、7-乙基-1-甲基-(15)和7-叔丁基-1-甲基菲(27),在四到七个步骤中产率为21%-36%。与传统方法相比,这种方法可以扩展到克量级,提供高纯度的APs单异构体,可用作环境研究的分析标准。三氟甲磺酸酯的氨基羰化反应生成N,N-二乙基苯甲酰胺(9至10),以及阴离子Fries重排反应(23至24)提供了DoM化学的其他潜在联系。关键词:菲、定向正金属化、Suzuki-Miyaura交叉偶联、合成、多环芳烃、羰化。