85277-83-4Relevant academic research and scientific papers
Palladium-Catalyzed Stereoselective Hydrodefluorination of Tetrasubstituted gem-Difluoroalkenes
Ma, Qiao,Liu, Caroline,Tsui, Gavin Chit
, p. 5193 - 5197 (2020)
A highly stereoselective palladium(0)-catalyzed hydrodefluorination (HDF) of tetrasubstituted gem-difluoroalkenes is developed. By using catalytic Pd(PPh3)4 (2.5-5 mol percent) and hydrosilane Me2PhSiH, various trisubstituted terminal (E)-monofluoroalkenes can be synthesized with excellent E/Z selectivity (>99:1) and good functional group tolerability. The key stereocontrol should be exerted by an ester-directed C-F bond oxidative addition step in the catalytic cycle.
Nucleophilic Vinylic Substitution (SNV) of Trisubstituted Monofluoroalkenes for the Synthesis of Stereodefined Trisubstituted Alkenes and Divinyl Ethers
Zong, Yuwei,Ma, Qiao,Tsui, Gavin Chit
supporting information, p. 6169 - 6173 (2021/08/18)
We herein describe a nucleophilic vinylic substitution (SNV) of trisubstituted monofluoroalkenes with excellent stereocontrol (d.r. > 99:1). Starting from (E)-β-monofluoroacrylates, various trisubstituted (E)-alkenes containing O/N/S-substituent groups at the vinylic position can be obtained under simple conditions. Furthermore, (E,E)-divinyl ethers can be generated through dimerization of the monofluoroalkenes, triggered by adventitious water in the reaction mixture.
Allyl amine MAO inhibitors
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, (2008/06/13)
Compounds of the formula STR1 wherein: R is phenyl, phenyl monosubstituted, disubstituted, or trisubstituted by (C1 -C8) alkyl, (C1 -C8)alkoxy, hydroxy, chlorine, bromine, iodine, fluorine, trifluoromethyl, nitr
