While the job of a research scientist varies, most chemistry careers in research are based in laboratories,Related Products of 1273-86-5, where research is conducted by teams following scientific methods and standards. In a patent，Which mentioned a new discovery about 1273-86-5
The synthesis and characterization of pyrazole derivatives of general formula [C6H4-4-R-1-{(3,5-Me2-C3N 2)-CH2-(eta5-C5H4) Fe(eta5-C5H5)}] [R = OMe (1a) or H (1b)] with a ferrocenylmethyl substituent are described.The study of the reactivity of compounds 1 with palladium(II) acetate has allowed the isolation of complexes (mu-AcO)2[Pd{kappa2-C,N-C6H 3-4-R-1-[(3,5-Me2-C3N2)-CH 2-(eta5-C5H4)Fe(eta5-C 5H5)]}]2 (2) [R = OMe (2a) or H (2b)] that contain a bidentate [C(sp2, phenyl), N]- ligand and a central “Pd(mu-AcO)2Pd” unit.Furthermore, treatment of 2 with LiCl produced complexes (mu-Cl)2[Pd{kappa2-C,N-C6H 3-4-R-1-[(3,5-Me2-C3N2)-CH 2-(eta5-C5H4)Fe(eta5- C5H5)]}]2 (3) [R = OMe (3a) or H (3b)] that arise from the replacement of the acetato ligands by the Cl-.Compounds 2 and 3 also react with PPh3 giving the monomeric complexes [Pd{kappa2-C,N-C6H3-4-R-1-[(3,5-Me 2-C3N2)-CH2-(eta5- C5H4)Fe(eta5-C5H 5)]}X(PPh3)] {X- = AcO- and R = OMe (5a) or H (5b) or X- = Cl- and R = OMe (6a) or H (6b)}, where the phosphine is in a cis-arrangement to the metallated carbon atom. Treatment of 3 with thallium(I) acetylacetonate produced [Pd{kappa2-C,N-C6H3-4-R-1-[(3,5-Me 2-C3N2)-CH2-(eta5- C5H4)Fe(eta5-C5H 5)]}(acac)] (7) [R = OMe (7a) or H (7b)]. Electrochemical studies of the free ligands and the cyclopalladated complexes are also reported. The dimeric complexes 3 also react with MeO2C-C{triple bond, long}C-CO2Me (in a 1:4 molar ratio) giving [Pd{(MeO2C-C{double bond, long}C-CO2Me)2C6H3-4-R-1-[(3 ,5-Me2-C3N2)-CH2-(eta 5-C5H4)Fe(eta5-C5H 5)]}Cl] (8) [R = OMe (8a) or H (8b)], which arise from the bis(insertion) of the alkyne into the sigma{Pd-C(sp2, phenyl)} bond of 3.
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Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion