Manganese(III) Acetate-Mediated Cyclization of Diarylmethylenecyclopropa[<i>b</i>]naphthalenes: A Method for the Synthesis of 1,2-Benzanthracene Derivatives
sulfonic acid provides an efficient method for the synthesis of 1,2-benzanthracenes in moderate to good yields under mild conditions. In addition, after several steps of simple and routine operations, the obtained 1,2-benzanthracenes bearing an acetoxy group could be easily converted to structurally more sophisticated 1,2-benzanthracenederivatives, which are not easily accessible yet potentially useful
乙酸锰(III)介导的二芳基亚甲基环丙烷[ b ]萘与亲核试剂(如羧酸和磺酸)的自由基环化为在温和条件下以中等至良好收率合成1,2-苯并蒽提供了一种有效的方法。此外,经过几步简单且常规的操作后,获得的带有乙酰氧基的1,2-苯并蒽可以容易地转化为结构更复杂的1,2-苯并蒽衍生物,这些衍生物不易获得,但对材料科学而言可能是有用的候选物。 。
Palladium-Catalyzed [3+2] Cycloaddition Reaction of (Diarylmethylene)cyclopropa[b]naphthalenes with Arynes: An Efficient Synthesis of 11-(Diarylmethylene)-11H-benzo[b]fluorenes
作者:Ying Lin、Luling Wu、Xian Huang
DOI:10.1002/ejoc.201100035
日期:2011.6
A Pd-catalyzed [3+2] cycloaddition reaction of (diarylmethylene)cyclopropa[b]naphthalenes with arynes provided an efficient approach for the synthesis of 11-(diarylmethylene)-11H-benzo[b]fluorenes with good to excellent yields under mild conditions.
A ligand-controlled switch of regioselectivity in ring-opening coupling of diarylmethylenecyclopropa[b]naphthalenes with Grignard reagents
作者:Jian Cao、Xian Huang、Luling Wu
DOI:10.1039/c3ob42084a
日期:——
A ligand-controlled regioselectivity switch of ring-opening coupling reaction of diarylmethylenecyclopropa[b]naphthalenes with Grignard reagents providing differently substituted β-vinylic naphthalenes in moderate to excellent yields was reported: when Pd(OAc)2 was used, the aromatic group from the Grignard reagent regioselectively coupled to the naphthyl ring after the ring-opening of three-membered
报道了二芳基亚甲基环丙烷[ b ]萘与格氏试剂的开环偶联反应的配体控制的区域选择性开关,该试剂以中等至优异的产率提供了不同取代的β-乙烯基萘:当使用Pd(OAc)2时,格氏试剂在三元环的开环后区域选择性地与萘环偶联,这不同于Pd(PPh 3)2 Cl 2催化的反应。根据仔细的NMR研究,我们得出结论,这可以用配体效应来解释。
Highly regioselective ring-opening coupling of diarylmethylenecyclopropa[b]naphthalenes with Grignard reagents
作者:Jian Cao、Xian Huang、Luling Wu
DOI:10.1039/c3cc00171g
日期:——
Highly regioselective ring-opening coupling reactions of diarylmethylenecyclopropa[b]naphthalenes with Grignard reagents have been developed, which provide differently substituted beta-vinylic naphthalenes in moderate to excellent yields.