Silver-Mediated Intermolecular Iodotrifluoromethoxylation of Alkenes
作者:Qingyun Huang、Pingping Tang
DOI:10.1021/acs.joc.9b03206
日期:2020.2.21
For the first time, intermolecular iodotrifluoromethoxylation between alkenes and NIS with AgF as the catalyst and TFMS as the trifluoromethoxylation reagent has been explored. The practical processes, good functional group tolerance, and easy scalability make this reaction an attractive protocol for the synthesis of trifluoromethoxylated iodides, which can be readily used for further synthetic manipulation
Method for producing allyl compound, and ether or ester compound produced thereby
申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:US20040147757A1
公开(公告)日:2004-07-29
A method for producing an allyl compound having a compositional formula different from that of an allyl starting material compound, which comprises reacting the allyl starting material compound with an oxygen nucleophilic agent in the presence of a catalyst containing at least one transition metal compound containing a transition metal selected from the group consisting of transition metals belonging to Group 8 to Group 10 of the Periodic Table and a multidentate phosphite compound.
New selectivities from old catalysts. Occlusion of Grubbs’ catalysts in PDMS to change their reactions
作者:M. Brett Runge、Martin T. Mwangi、Ned B. Bowden
DOI:10.1016/j.jorganchem.2006.09.022
日期:2006.12
dissolved in methylene chloride also react by olefin isomerization with occluded catalysts. Eleven examples of substrates that exhibit dual reactivity by undergoing olefin isomerization with occluded catalysts and olefin metathesis with catalysts dissolved in methylene chloride are reported. Most of these substrates have olefins with allylic phosphine oxides, carbonyls, or ethers. Control experiments demonstrate
A method of stereodivergent intramolecular ring-opening arylation of amine-tethered epoxides to 3,4-disubstituted tetrahydroquinolines has been developed. The tuneable good stereoselectivity was attained by switching the catalyst from titanocene(III) to Lewis–acidic zinc catalyst.