Synthesis_of_Organometallic_Compounds
... A coordinatively unsaturated 16eruthenium(0) complex • Reduction of RuCl2(CO)2(PtBu2Me)2 with magnesium affords an isolable 16e ruthenium(0) complex Ru(CO)2(PtBu2Me)2. • Highly reactive toward hydrogen, acetylenes and phosphines to give coordinatively saturated complexes. ...
... A coordinatively unsaturated 16eruthenium(0) complex • Reduction of RuCl2(CO)2(PtBu2Me)2 with magnesium affords an isolable 16e ruthenium(0) complex Ru(CO)2(PtBu2Me)2. • Highly reactive toward hydrogen, acetylenes and phosphines to give coordinatively saturated complexes. ...
Section 2 Hydrocarbons Chapter 22
... • Unsaturated hydrocarbons are hydrocarbons in which not all carbon atoms have four single covalent bonds. • An unsaturated hydrocarbon has one or more double bonds or triple bonds between carbon atoms. • Carbon atoms can easily form multiple bonds to other carbon atoms, so multiple bonds in organic ...
... • Unsaturated hydrocarbons are hydrocarbons in which not all carbon atoms have four single covalent bonds. • An unsaturated hydrocarbon has one or more double bonds or triple bonds between carbon atoms. • Carbon atoms can easily form multiple bonds to other carbon atoms, so multiple bonds in organic ...
Reaction of orthoesters with alcohols in the presence of acidic
... Claisen-Johnson orthoester rearrangement1 is an important C-C bond forming reaction, which yields vinylic esters. This reaction being heat promoted is generally low yielding. The poor conversion is usually attributed to the inactivation of the catalyst or decomposition of the orthoester and to compe ...
... Claisen-Johnson orthoester rearrangement1 is an important C-C bond forming reaction, which yields vinylic esters. This reaction being heat promoted is generally low yielding. The poor conversion is usually attributed to the inactivation of the catalyst or decomposition of the orthoester and to compe ...
Organic Chemistry
... Use hyphens to separate numbers from prefixes b. Use commas to separate numbers from other numbers c. Use alphabetical order to list branched groups Branched Alkenes and Alkynes ...
... Use hyphens to separate numbers from prefixes b. Use commas to separate numbers from other numbers c. Use alphabetical order to list branched groups Branched Alkenes and Alkynes ...
Rapid Ether and Alcohol CO Bond Hydrogenolysis Catalyzed by
... hydrogenolysis of ethers to alcohols.14 The computed intrinsic enthalpy barrier for this Hf(OTf)4-catalyzed ring-opening is 16.8 kcal/mol. Hydrogenation of alkenol 8 to alcohol 9 is found to be, as expected, exothermic and kinetically less challenging than ringopening.12 In the next phase of the cat ...
... hydrogenolysis of ethers to alcohols.14 The computed intrinsic enthalpy barrier for this Hf(OTf)4-catalyzed ring-opening is 16.8 kcal/mol. Hydrogenation of alkenol 8 to alcohol 9 is found to be, as expected, exothermic and kinetically less challenging than ringopening.12 In the next phase of the cat ...
Ring-Opening Metathesis Polymerization of Norbornene Catalyzed
... Complex 1 appeared to be highly selective for the polymerization of norbornene, being inactive when other cyclo-olefins such as norbornadiene, cyclopentene, cyclohexene or cyclooctene were used. The polymers obtained in the different runs present similar characteristics, with a polymodal molecular w ...
... Complex 1 appeared to be highly selective for the polymerization of norbornene, being inactive when other cyclo-olefins such as norbornadiene, cyclopentene, cyclohexene or cyclooctene were used. The polymers obtained in the different runs present similar characteristics, with a polymodal molecular w ...
Chemical reaction model:
... Irradiation produces radicals randomly and uniformly throughout the polymer, irrespective of the crystal morphology [7]. The initial radicals formed are essentially alkyl radicals that react with oxygen to degrade to allyl and peroxy radicals. O’Neill et al. [30] evaluated the nature of these free r ...
... Irradiation produces radicals randomly and uniformly throughout the polymer, irrespective of the crystal morphology [7]. The initial radicals formed are essentially alkyl radicals that react with oxygen to degrade to allyl and peroxy radicals. O’Neill et al. [30] evaluated the nature of these free r ...
RULE
... to left) - vicinal diiodides are unstable at room temperature, decomposing back to alkenes with release of iodine. ...
... to left) - vicinal diiodides are unstable at room temperature, decomposing back to alkenes with release of iodine. ...
Liquid-gas phase-boundary catalytic system
... For many years, scientists developed several methods for structural control of organized molecular assemblies, such as use of a flow and an electric field. Magnetic field is also one of a potential method to align and orient molecules and domains, because it has an advantage that any materials, even ...
... For many years, scientists developed several methods for structural control of organized molecular assemblies, such as use of a flow and an electric field. Magnetic field is also one of a potential method to align and orient molecules and domains, because it has an advantage that any materials, even ...
413-420_00_j_o_kones..
... biorefineries need to build on the need for sustainable chemical products through modern and proven green chemical technologies such as bioprocessing including pyrolysis, Fisher Tropsch, and other catalytic processes in order to make more complex molecules and materials on which a future sustainable ...
... biorefineries need to build on the need for sustainable chemical products through modern and proven green chemical technologies such as bioprocessing including pyrolysis, Fisher Tropsch, and other catalytic processes in order to make more complex molecules and materials on which a future sustainable ...
Reaction Analysis and PAT Tools
... Transforms Data into Information iC IR™ software was designed to take infrared data and convert it into useful and meaningful information about chemical reactions, in real time. The result of an extensive research project on how scientists analyze reactions, iC IR allows chemists and engineers to qu ...
... Transforms Data into Information iC IR™ software was designed to take infrared data and convert it into useful and meaningful information about chemical reactions, in real time. The result of an extensive research project on how scientists analyze reactions, iC IR allows chemists and engineers to qu ...
Cracking (chemistry)
In petroleum geology and chemistry, cracking is the process whereby complex organic molecules such as kerogens or heavy hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon-carbon bonds in the precursors. The rate of cracking and the end products are strongly dependent on the temperature and presence of catalysts. Cracking is the breakdown of a large alkane into smaller, more useful alkanes and alkenes. Simply put, hydrocarbon cracking is the process of breaking a long-chain of hydrocarbons into short ones. More loosely, outside the field of petroleum chemistry, the term ""cracking"" is used to describe any type of splitting of molecules under the influence of heat, catalysts and solvents, such as in processes of destructive distillation or pyrolysis. Fluid catalytic cracking produces a high yield of petrol and LPG, while hydrocracking is a major source of jet fuel, Diesel fuel, naphtha, and again yields LPG.