Acid-Catalyzed Cascade Reactions of Arylvinylcyclopropenes with Acetals and Aldehydes for the Construction of Different Aromatic Systems
作者:Zhi-Bin Zhu、Yin Wei、Min Shi
DOI:10.1002/chem.200900948
日期:2009.8.3
Catalyzed by acid, the reactions of arylvinylcycloproenes with acetals or aldehydes lead to different cascade additions to construct different aromatic systems (see scheme).
Lewis Acid Catalyzed Rearrangement of Vinylcyclopropenes for the Construction of Naphthalene and Indene Skeletons
作者:Li-Xiong Shao、Yun-Peng Zhang、Ming-Hui Qi、Min Shi
DOI:10.1021/ol0626746
日期:2007.1.1
[reaction: see text] The choice of Lewis acid catalyst can result in dramatic differences in the chemoselectivity of the rearrangement reactions of vinylcyclopropenes. When BF3.OEt2 was used as the catalyst, naphthalenes were formed. However, when Cu(OTf)2 was used as the catalyst, indenes were obtained.
Preparation of Di-μ-chlorobis[π-1-chloro-1-aryl-2-(2′,2′-diarylvinyl)allyl]palladium(II) Complexes and a Novel Dehydrogenative Rearrangement of Arylvinylcyclopropenes for the Synthesis of 7<i>H</i>-Benzo[<i>c</i>]fluorene Derivatives
作者:Zhi-Bin Zhu、Kai Chen、Yin Wei、Min Shi
DOI:10.1021/om1009846
日期:2011.2.14
oro-1-aryl-2-(2′,2′-diarylvinyl)allyl]palladium(II) complexes has been developed from the reaction of arylvinylcyclopropenes with a Pd(II) complex along with a novel dehydrogenative rearrangement of arylvinylcyclopropenes via di-μ-chlorobis[π-1-chloro-1-aryl-2-(2′,2′-diarylvinyl)allyl]palladium(II) complexes to produce 7H-benzo[c]fluorenederivatives in good yields under mild conditions. A stoichiometric
通过芳基乙烯基环丙烯的反应,开发了一种新的合成方法,用于制备二-μ-氯双[π-1-氯-1-芳基-2-(2',2'-二芳基乙烯基)烯丙基]钯(II)配合物Pd(II)配合物,以及经由二-μ-氯双[π-1-氯-1-芳基-2-(2',2'-二芳基乙烯基)烯丙基]钯(II)配合物对芳基乙烯基环丙烯进行的新型脱氢重排在温和条件下以高收率生产7 H-苯并[ c ]芴衍生物。化学计算量的银盐或催化量的强布朗斯台德酸HOTf可能是这种有趣的脱氢重排的促进剂或催化剂。