For oxidative coupling

The halogen displacement polymerization proceeds by a combination of the redistribution steps described for oxidative coupling polymerization and a sequence in which a phenoxide ion couples with a phenoxy radical (eq. 11) and then expels a bromide ion. The resultant phenoxy radical can couple with another phenoxide in a manner that is analogous to equation 11 or it can redistribute with other aryloxy radicals in a process analogous to equations 7 and 8. 

Fig. 2. Selected geometric parameters (A) of the optimized structures of the key species for oxidative coupling for the catalytically active generic [Ni0(r(2-butadiene)2PH3] species la and the [Ni°(ri2-butadiene)3] species Fb of the C8- and Ci2-product channel, respectively, via the most feasible pathway for p2-/rans/r 2-ds-butadiene coupling (of opposite enantiofaces) along la -> 2a and Fb -> 2b. Free energies (AG, AG 5 in kcalmol-1) are given relative to the favorable stereoisomer of the respective bis(r 2-/rans-butadiene) and tris(r 2-/r

Fig. 10. Schematic correlation diagram for oxidative coupling along la 2a, that is focused on the principally involved orbitals.

Estimated Electronic and Steric Contributions to Intrinsic Activation Barriers and Reaction Energies for Oxidative Coupling via the Most Feasible Pathway along... 

Figure 8. Lineweaver-Burk plots for oxidative coupling of DPP catalyzed by copper complexes of polymer ligand (I) with a =0.39 at 5 different temperatures. [CuCle]0 = 3.3mM N/Cu = 1 solvent 1,2-dichlorobenzene/methanol (13 2,...

Conversion and C2+ selectivity for oxidative coupling of methane over praseodymium oxide in the presence and absence of TCM. 

Methyl-3-phenyl-l,2,4-thiadiazol-5-one hydrazone contains the amidrazone group necessary for oxidative coupling with suitable phenols or amines to yield azo-dyes. Thus, condensation products (288... 

Figure 14.18 Some simple products and postulated mechanisms for oxidative coupling of phenol. The subscripts o and p are used to denote ortho- and para-position, respectively. Note that many more products can be formed particularly from substituted phenols (see, e.g., Dec and Bollag, 1994 Yu et al., 1994).

Asymmetric Catalysis for Oxidative Coupling of2-Naphthol to BINOL... 

Reduction of aromatic nitro groups occurs in three steps, via nitroso and hydroxylamine intermediates, to the amine. The amine can go on to form polymeric residues by a mechanism analogous to that for oxidative coupling of phenols, as in Equation 2. Abiotic nitro reduction is well documented for pesticides that contain aromatic nitro groups, such as the phosphorothioate esters methyl and ethyl parathion (22, 30-33). 

The membrane reactor dynamics for oxidative coupling of methane will be further discussed in Chapter 11. 

Peureux J., Torres M., Mozzanega H., Giroir-Fendler A., and Dalmon J.A., Nitrobenzene liquid-phase hydrogenation in a membrane reactor. Catalysis Today 25 409 (1995). Chanaud P., Julbe A., Larbot A., Guizard C., Cot L., Borges H., Giroir-Fendler A. and Mirodatos C., Catalytic membrane reactor for oxidative coupling of methane. Part 1 Preparation and characterization of LaOCl membranes. Catalysis Today 25 225 (1995). 

Vidic RD. Catalytic Properties of Activated Carbon for Oxidative Coupling of Organic Compounds, unpublished report. University of Pittsburgh, 1993. 

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