1356012-67-3Relevant articles and documents
Rh(II)-Catalyzed [2,3]-Sigmatropic Rearrangement of Sulfur Ylides Derived from Cyclopropenes and Sulfides
Zhang, Hang,Wang, Bo,Yi, Heng,Zhang, Yan,Wang, Jianbo
, p. 3322 - 3325 (2015)
(Chemical Equation Presented) A new type of Rh2(OAc)4-catalyzed [2,3]-sigmatropic rearrangement of sulfur ylides is reported. A series of cyclopropenes were successfully employed for [2,3]-sigmatropic rearrangement by a reaction with either allylic or propargylic sulfides. Under the optimized conditions, the reaction afforded the products in moderate to excellent yields. In these transformations, the vinyl metal carbenes generated in situ from the cyclopropenes were effectively trapped by sulfides, resulting in the formation of corresponding products upon [2,3]-sigmatropic rearrangements.
Divergent outcomes of gold(I)-catalyzed indole additions to 3,3-disubstituted cyclopropenes
Young, Paul C.,Hadfield, Maximillian S.,Arrowsmith, Lynn,MacLeod, Kristina M.,Mudd, Richard J.,Jordan-Hore, James A.,Lee, Ai-Lan
, p. 898 - 901 (2012/04/18)
Depending on the conditions employed, gold(I)-catalyzed addition of indoles to 3,3-disubstituted cyclopropenes can be controlled to yield either 3-(E)-vinylindoles (3) or bis-indolylalkanes (4). If the cyclopropene substituents are sterically bulky, unprecedented gold-catalyzed oxidation under air occurs to yield bis-indolylalkene (5) and epoxide (6) at room temperature.