O V O O RO OH t-BuOOH, CH2Cl2, Ti(OPr-i)4(cat), 20 oC (L)
... These are not actually enantiomers of each other, but rather diastereomers, because the chirality of the C bearing the ethyl is the same in each case ((R)-). For the dihydroxylations, however, they function as the complementary systems to get enantiomeric products; the unofficial term pseudoenantiom ...
... These are not actually enantiomers of each other, but rather diastereomers, because the chirality of the C bearing the ethyl is the same in each case ((R)-). For the dihydroxylations, however, they function as the complementary systems to get enantiomeric products; the unofficial term pseudoenantiom ...
reactions taking place within cells
... Organic chemistry The study of the chemistry of carbon compounds Homologous series A set of compounds with • similar chemical properties • same functional groups • a general formula where successive members differ by CH2 Structural formula How the various atoms are bonded to one another within the ...
... Organic chemistry The study of the chemistry of carbon compounds Homologous series A set of compounds with • similar chemical properties • same functional groups • a general formula where successive members differ by CH2 Structural formula How the various atoms are bonded to one another within the ...
File - Mr Weng`s IB Chemistry
... In the reaction between methane and chlorine either can be used, however... In the laboratory a source of UV light (or sunlight) is favoured. ...
... In the reaction between methane and chlorine either can be used, however... In the laboratory a source of UV light (or sunlight) is favoured. ...
CHM 222 - Jefferson State Community College
... Demonstrate an understanding of reactions involving aldehydes, ketones, carboxylic acids and their derivatives including nomenclature, synthesis and mechanisms. 1. Name and draw aldehydes, ketones, carboxylic acids and their derivatives. 2. Propose a synthesis for each type of compound listed above. ...
... Demonstrate an understanding of reactions involving aldehydes, ketones, carboxylic acids and their derivatives including nomenclature, synthesis and mechanisms. 1. Name and draw aldehydes, ketones, carboxylic acids and their derivatives. 2. Propose a synthesis for each type of compound listed above. ...
File
... Treatment of the ionic rhodium complex [Rh(COD)2][BF4] (COD = cyclo-octa-1,4-diene) with bis(diphenylphosphino)ethane (‘dppe’) in n-butanol leads to the formation of a highlyeffective system for the hydrogenation of alkenes (a) Draw a catalytic cycle for the conversion of ethene and hydrogen to eth ...
... Treatment of the ionic rhodium complex [Rh(COD)2][BF4] (COD = cyclo-octa-1,4-diene) with bis(diphenylphosphino)ethane (‘dppe’) in n-butanol leads to the formation of a highlyeffective system for the hydrogenation of alkenes (a) Draw a catalytic cycle for the conversion of ethene and hydrogen to eth ...
polymerisation
... Many are prepared by a free radical process involving high pressure, high temperature and a catalyst. The catalyst is usually a substance (e.g. an organic peroxide) which readily breaks up to form radicals whichinitiate a chain reaction. Another famous type of catalyst is a Ziegler-Natta catalyst (n ...
... Many are prepared by a free radical process involving high pressure, high temperature and a catalyst. The catalyst is usually a substance (e.g. an organic peroxide) which readily breaks up to form radicals whichinitiate a chain reaction. Another famous type of catalyst is a Ziegler-Natta catalyst (n ...
Silica Sulfuric Acid Promotes Aza-Michael Addition Reactions under
... using other Michael acceptors with various aromatic and aliphatic amines. As shown in Table 1, the Michael addition of various aliphatic amines and aryl amines carrying either electron-donating or electron-withdrawing groups were successfully reacted with PTEA or PEEA to produce their corresponding ...
... using other Michael acceptors with various aromatic and aliphatic amines. As shown in Table 1, the Michael addition of various aliphatic amines and aryl amines carrying either electron-donating or electron-withdrawing groups were successfully reacted with PTEA or PEEA to produce their corresponding ...
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.