[2-(2-Naphthyl)phenyl] 乙炔和 2-(2-Naphthyl)benzaldehydeO-Phenyloximes: Synthesis of the Angucycline Tetrangulol and 1,10,12-Trimethoxy-8-methylbenzo[c]phenanthridine
摘要:
1,4,5-(三甲氧基萘-2-基)硼酸和2-碘-3-甲氧基-5-甲基苯甲醛之间的铃木-宫浦偶联反应得到中间体3-甲氧基-5-甲基-2-(1, 4,5-三甲氧基萘-2-基)苯甲醛。该苯甲醛转化为炔烃,2-(2-乙炔基-6-甲氧基-4-甲基苯基)-1,4,5-三甲氧基萘是利用 Corey-Fuchs 反应完成的。将衍生的乙炔暴露于催化铂 (II) 介导的闭环产生所需的四环芳烃产物 1,7,8,12-四甲氧基-3-甲基四苯,其转化为四丁醇。将相关的 3-甲氧基-5-甲基-2-(1,4,5-三甲氧基萘-2-基)苯甲醛邻苯基肟在离子液体中暴露于微波辐射下产生 1,10,12-三甲氧基-8-甲基苯并[c]菲啶,
Towards total synthesis of a series of kinamycin and related antibiotics via common synthetic intermediates, total synthesis of prekinamycin was achieved via Suzuki coupling of naphthaleneboronic acid and bromobenzene derivative, intramolecular FriedelCrafts reaction of 2‐(naphthalen‐2‐yl)benzoic acid, and diazotization in ten steps from 3,5‐dimethylphenol. Syntheticstudies towards kinamycin antibiotics
An efficient and short totalsynthesis of the fungal benzo[j]fluoranthene compound bulgarein is reported. Key steps in the totalsynthesis are a Suzuki-Miyaura coupling reaction of two substituted naphthalene derivates followed by a polyphosphoric acid (PPA) mediated condensation reaction to form the benzo[j]fluoranthene skeleton.
O-4,O-9-Dimethylstealthin A (11-amino-5-hydroxy-2-hydroxymethyl-4,9-dimethoxy-benzo[b]fluoren-10-one) and O-4,O-9-dimethylstealthin C (11-amino-5-hydroxy-4,9-dimethoxy-2-methyl-benzo[b]fluoren-10-one), methylated derivatives of radical scavengers produced by Stereptomyces viridochromogenes, were synthesized using the Suzuki coupling reaction as a key step. (C) 1997 Elsevier Science Ltd.