89745-91-5Relevant academic research and scientific papers
Divergent gold-catalysed reactions of cyclopropenylmethyl sulfonamides with tethered heteroaromatics
Drew, Melanie A.,Arndt, Sebastian,Richardson, Christopher,Rudolph, Matthias,Hashmi, A. Stephen K.,Hyland, Christopher J. T.
, p. 13971 - 13974 (2019/11/25)
Cyclopropenylmethyl sulfonamides with tethered heteroaromatics have been demonstrated to undergo divergent gold-catalysed cyclisation reactions. A formal dearomative (4+3) cycloaddition takes place with furan-tethered substrates, yielding densely functionalised 5,7-fused heterocycles related to the bioactive curcusone natural products. Indole-tethered substrates display divergent reactivity giving biologically important tetrahydro-β-carbolines via a Friedel-Crafts mechanism.
RhI-Catalyzed Carbonylative [3+1] Construction of Cyclobutenones via C?C σ-Bond Activation of Cyclopropenes
Xu, Wen-Bin,Li, Changkun,Wang, Jianbo
, p. 15786 - 15790 (2018/10/15)
With a catalytic amount of Rh(cod)2BF4 and dppm, cyclopropenes undergo a direct carbonylative [3+1] cycloaddition reaction under an atmosphere of CO to produce the cyclobutenones in excellent yields, in which the regio- and diastereoselectivities can be controlled in certain cases with the help of chelating groups. Cyclobutenone with a chiral 4-position was prepared by diastereoselective induction. Rhodacyclopentenone has been determined as the key intermediate, as it was synthesized and applied to the reductive elimination step.
Regioselective formation of β-alkyl-α-phenyliridabenzenes via unsymmetrical 3-vinylcyclopropenes: Probing steric and electronic influences by varying the alkyl ring substituent
Wu, He-Ping,Weakley, Timothy J. R.,Haley, Michael M.
, p. 1191 - 1200 (2007/10/03)
The synthesis of unsymmetrical (Z)-1-alkyl-3-(2-iodovinyl)-2-phenyl-1- cyclopropenes (R = Me (8a), Et (8b), iPr (8c), and tBu (8d)) and their reactions with Vaska's complex [Ir(CO)Cl(PPh3)2] and its trimethylphosphine analogue [Ir(CO
