Photolysis of diarylvinylcyclopropenes for the construction of 1-methylene-8a-aryl-1,8a-dihydroazulene skeletons
作者:Fang-Fang Yu、Wang-Gui Yang、Min Shi
DOI:10.1039/b820212e
日期:——
Photoirradiation of vinylcyclopropenes 1 in a Pyrex tube provides 1-isopropylidene-3,8a-diphenyl-1,8a-dihydroazulene derivatives 2 in moderate to good yields within 4.5–14 h. A plausible mechanism has been discussed for the formation of these interesting products.
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。
Gold(I)-Catalyzed Cycloisomerization of Arylvinylcyclopropenes: An Efficient Synthetic Protocol for the Construction of Indene Skeletons
作者:Zhi-Bin Zhu、Min Shi
DOI:10.1002/chem.200801370
日期:2008.11.17
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.