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).
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.
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.