Amination olefins

Sulfur dichloride attacks these chelate rings under mild conditions and the trissulfenyl chloride chelates (XIV) have been reported to react with a variety of alcohols, amines, olefins, and phenol. The products of these reactions have, for the... 

Op the foregoing basis, the fundamental difference with respect to the energy transfer and bond scission processes between the paraffins on the one hand, and substrates such as alcohols, ethers, amines, olefins, etc., on the other, would appear to be that in the paraffins the excitation... 

Oxidative alkoxycarbonylation asymmetric carbonylation, 11, 467 catalyst development, 11, 467 mechanism, 11, 466 Oxidative amination, olefins, 10, 155 Oxidative cleavage, mechanisms, 1, 103 Oxidative promoters, in Pauson-Khand reaction with dicobalt octacarbonyl, 11, 337... 

Formation of the primary amine, olefin, and C02 through the intermediate state of a six-membered ring ... 

For the preparation of enamines or imines from ketones see Section 356 (Amine - Olefin). 

Kinetic studies have been made on the thermal decomposition of a poly(oxypropylene)triol-toluene di-isocyanate copolymer foam. Following a diffusion rate-controlled step, the cellular structure collapses to a viscous liquid and degradation then occurs on a random scission basis. Products of degradation of A-monosubstituted and A A-disubstituted polyurethanes have been analysed by direct pyrolysis in the ion source of a mass spectrometer. The mono-substituted polymers depolymerize quantitatively to di-isocyanates and diols, whereas the disubstituted materials decompose selectively to secondary amines, olefins, and carbon dioxide. The behaviour of the monosubstituted polymers has been confirmed in an i.r. study of the degradation of model compounds. A study of the thermal degradation in vacuum of polyurethanes prepared from butanediol, methylene bis(4-phenylisocyanate), and hexanedioic acid-ethylene glycol-propylene glycol polyesters has been reported and reaction mechanisms proposed. ... 

Other high energy processes for the conversion of CO2 have not been developed so far. The simple reason for this is that it does not make sense to use fossil fuels to convert CO2, as the process will finally emit more CO2 than it stores Therefore, the chemistry developed in the past was based on the reaction of CO2 with energy-rich molecules, such as electron-rich species amines, olefins, dienes, alkynes, and O-compounds. Scheme 39.3 shows the processes on stream (Scheme 39.3a) and those under development in which the co-reagent is the energy carrier (Scheme 39.3b). 

Aminated olefin polymers Polypropylene resin expanded particles... 

Aminated olefin pol mers Ethylene/a-olefin copol mer composition, graft modified, ethylene/a-olefin copolymer composition, ethylene copol mer composition, and multi-stage olefin polymerization process Polypropylene resin expanded particles... 

The mechanism of degradation for the HS of PUs (first main step of Figure 7.1) has been deeply studied [24, 27, 34]. In particular, three paths are characteristics for the degradation of the urethane linkage, summarized in Figure 7.2. The first one is the dissociation to isocyanate and alcohol the second one the dissociation to primary amine, olefin, and carbon dioxide and the last one the elimination of carbon dioxide, leading to the formation of a secondary amine [27]. 

Eq 10.2 Dissociation to primary amine, olefin and carbon dioxide. 

The general PU decomposition mechanism is shown in Scheme 13 a. 122. In general, there are three main pathways for the initial degradation of the urethane linkage, which are dissociation to isocyanate and alcohol dissociation to primary amine, olefin and carbon dioxide as well as the formation of a secondary amine with elimination of carbon... 

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