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.
Nickel-catalyzed manipulation of tertiary phosphines via highly selective C–P bond cleavage
作者:Jian Cao、Xian Huang、Luling Wu
DOI:10.1039/c3cc43640c
日期:——
A catalytic cycle involving oxidative addition of nickel(0) with a carbonâcarbon single bond in the three-membered ring of diarylmethylenecyclopropa[b]naphthalenes, highly selective cleavage of the CâP bond, and migration of the aryl group of phosphine consequently provides a new type of bulky phosphine in excellent yields.
Palladium-Catalyzed Highly Regioselective [3 + 2] Cycloaddition Reactions of Alkylidenecyclopropa[<i>b</i>]naphthalenes with Alkenes or Alkynes: An Efficient Synthesis of 1(3)-Alkylidene-2,3-dihydro-1<i>H</i>-benzo[<i>f</i>]indenes and 1-Alkylidene-1<i>H</i>-benzo[<i>f</i>]indenes
作者:Wanli Chen、Jian Cao、Xian Huang
DOI:10.1021/ol8023083
日期:2008.12.18
The first palladium-catalyzed highly regioselective [3 + 2] cycloadditionreactions of alkylidenecyclopropa[b]naphthalenes 1 with alkenes or alkynes is presented, providing an efficient method for the synthesis of 1(3)-alkylidene-2,3-dihydro-1H-benzo[f]indenes or 1-alkylidene-1H-benzo[f]indenes 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.