The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Methanesulfonato(2-dicyclohexylphosphino-2′,6′-di-i-propoxy-1,1′-biphenyl)(2′-amino-1,1′-biphenyl-2-yl)palladium(II)(SMILESS: O=S(O[Pd]C1=CC=CC=C1C2=C(C=CC=C2)N)(C)=O.CC(C)OC3=CC=CC(OC(C)C)=C3C4=CC=CC=C4P(C5CCCCC5)C6CCCCC6,cas:1445085-77-7) is researched.Quality Control of Methanesulfonato(2-dicyclohexylphosphino-2′,6′-di-i-propoxy-1,1′-biphenyl)(2′-amino-1,1′-biphenyl-2-yl)palladium(II). The article 《Pd-Catalyzed Perfluoroalkylative Aryloxycarbonylation of Alkynes with Formates as CO Surrogates》 in relation to this compound, is published in ACS Catalysis. Let’s take a look at the latest research on this compound (cas:1445085-77-7).
A palladium-catalyzed three-component protocol for the direct synthesis of perfluoroalkyl-substituted α,β-unsaturated esters (E)-RC(=CHR1)C(O)OR2 (R = Ph, cyclopropyl, thiophen-3-yl, hexan-1-yl, etc.; R1 = perfluorobutyl, perfluorohexyl, perfluorodecyl, perfluoroisoheptyl, 4-iodoperfluorobutan-1-yl, ; R2 = Ph, 4-fluorophenyl, 2,4,6-trichlorophenyl, etc.) from acetylenes RCC and perfluoroalkyl iodides R1I, applying formates HC(O)OR2 as convenient CO sources was reported. The tandem reaction proceeds under mild conditions with excellent regio- and stereoselectivities toward the E-isomer (>95:5, E:Z). Detailed mechanistic investigations revealed that the process proceeds through an off-cycle, base-induced decomposition of formate to CO and phenoxide, which are reassembled on the Pd-center into an aryloxycarbonyl moiety, which is ultimately installed on the alkene scaffold. To complete the mechanistic picture of the reaction, the exptl. study was supported by DFT calculations
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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem