The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis. We will look forword to the important role of 1271-51-8, and how the biochemistry of the body works.Related Products of 1271-51-8
You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs; Related Products of 1271-51-8, or in a public-sector research center, helping to ensure national healthcare provision keeps pace with new discoveries.In a article, mentioned the application of 1271-51-8, Name is Vinylferrocene, molecular formula is C12H3Fe
1-Decent and methyl 9-decenoate react with syn- and anti-Re(C-t-Bu)(CH-t-Bu)(ORF6) to give syn- and anti-Re(C-t-Bu)[CH(CH2)7Me](ORF6)2 and syn- and anti-Re(C-t-Bu)[CH(CH2)7CO2Me](OR F6)2, respectively (ORF6 = OCMe(CF3)2). The new alkylidene complexes are unstable in the presence of excess terminal olefin and decompose upon attempted isolation. However, vinylferrocene reacts relatively smoothly and reversibly with syn-Re(C-t-Bu)(CH-t-Bu)(ORF6)2 in a noncoordinating solvent to yield tert-butylethylene and primarily anti-Re(C-t-Bu)(CHFc)(ORF6)2 (Fc = ferrocenyl). anti-Re(C-t-Bu)(CHFc)(ORF6)2 (a = 9.769 (2) A, b = 30.746 (7) A, c = 10.140 (2) A, beta = 116.78 (1), V = 2719 (2) A3, space group = P21/a, Z = 4, FW = 815.50, p(calcd) = 1.992 g/cm3, R = 0.052, Rw = 0.050) was shown to be a pseudotetrahedral species with an unusually acute Re=Calpha – Cbeta angle (114.8 (7)) and short Re=C bond (1.70 (1) A). In the presence of THF or dimethoxyethane, complexes of the type syn- or anti-Re(C-t-Bu)(CHR)(ORF6)2S2 (R = Me, Et, Ph; S = THF or 0.5DME) could be prepared in high yield from Re(C-t-Bu)(CH-t-Bu)(ORF6)2 and CH2=CHR. Heteroatom-substituted (O, S, or N) terminal olefins react more rapidly than ordinary olefins with Re(C-t-Bu)(CH-t-Bu)(ORF6)2 in the presence of THF to yield complexes of the type syn- or anti-Re(C-t-Bu)(CHX)(ORF6)2(THF)2 (X = OR, SR, NR2, or p-dimethylaminophenyl). The X-ray structure of syn-Re(C-t-Bu)(CHOEt)(ORF6)2(THF)2 (a = 10.318 (1) A, b = 18.303 (2) A, c = 16.181 (2) A, beta = 96.98 (2), V = 3033 (1) A3, space group = P21/c, Z = 4, FW = 819.74, rho(calcd) = 1.795 g/cm3, R = 0.052, Rw = 0.050) showed it to be a pseudooctahedral complex containing cis alkylidyne and alkylidene ligands and a THF ligand trans to each. The Re-O bond to the THF trans to the neopentylidyne ligand is significantly longer than that trans to the ethoxymethylene ligand; presumably it is the THF ligand trans to the neopentylidyne ligand that exchanges more rapidly with free THF in solution. 2-Pentene or methyl oleate is metathesized in the presence of Re(C-t-Bu)(CH-t-Bu)(ORF6)2, and intermediate alkyidene complexes can be observed in each case. Addition of 3-hexene to Re(C-t-Bu)(CH-t-Bu)(ORF6)2 followed by TMEDA yields Re(C-t-Bu)(CHEt)(ORF6)2(TMEDA). Internal olefins are metathesized only very slowly by Re(C-t-Bu)(CH-t-Bu)(ORF6)2 in the presence of several equivalents of THF or DME or especially in neat THF or DME.
The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis. We will look forword to the important role of 1271-51-8, and how the biochemistry of the body works.Related Products of 1271-51-8
Reference:
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