Chapter 1
... Oxidation of Aldehydes • Aldehydes are easily oxidized to carboxylic acids by almost any oxidizing agent – So easily oxidized that it is often difficult to prepare them as they continue on to carboxylic acids – Susceptible to air oxidation even at room temperature – Cannot be stored for long periods ...
... Oxidation of Aldehydes • Aldehydes are easily oxidized to carboxylic acids by almost any oxidizing agent – So easily oxidized that it is often difficult to prepare them as they continue on to carboxylic acids – Susceptible to air oxidation even at room temperature – Cannot be stored for long periods ...
Highly Enantioselective Cyclocarbonylation of Allylic
... Since BICP is one of the most effective chiral 1,4-bisphosphines, we chose to evaluate this ligand as it might meet the two primary requirements for achieving high enantioselectivity and activity in Pd-catalyzed cyclocarbonylation reactions: (1) conformational rigidity of Pd-bisphosphine complexes c ...
... Since BICP is one of the most effective chiral 1,4-bisphosphines, we chose to evaluate this ligand as it might meet the two primary requirements for achieving high enantioselectivity and activity in Pd-catalyzed cyclocarbonylation reactions: (1) conformational rigidity of Pd-bisphosphine complexes c ...
Copper-Catalyzed Hydroalkylation of Terminal Alkynes
... (E)-Alkenes are ubiquitous in organic chemistry and numerous methods for their synthesis have been developed over the years. Traditional methods, such as dissolving metal reduction of alkynes,1 Schlosser modification of the Wittig reaction,2 or the Julia-Kocienski reaction,3 are still commonly used. ...
... (E)-Alkenes are ubiquitous in organic chemistry and numerous methods for their synthesis have been developed over the years. Traditional methods, such as dissolving metal reduction of alkynes,1 Schlosser modification of the Wittig reaction,2 or the Julia-Kocienski reaction,3 are still commonly used. ...
Unit-8-Alcohols-Aldehydes-Ketones
... In Unit 4 we saw how H2 could be used to reduce alkenes to alkanes in the hydrogenation reaction. • Because this reaction involves adding hydrogens to a molelcule, it is a reduction reaction. ...
... In Unit 4 we saw how H2 could be used to reduce alkenes to alkanes in the hydrogenation reaction. • Because this reaction involves adding hydrogens to a molelcule, it is a reduction reaction. ...
Metal-catalysed approaches to amide bond formation
... reaction using ZnO as a catalyst under solvent-free conditions at 70 1C, achieving some excellent yields in short reaction times (Scheme 2).6 They also demonstrated the reusability of the ZnO catalyst, incurring only a small decrease in yield of amide after the third use. Rao and co-workers later pu ...
... reaction using ZnO as a catalyst under solvent-free conditions at 70 1C, achieving some excellent yields in short reaction times (Scheme 2).6 They also demonstrated the reusability of the ZnO catalyst, incurring only a small decrease in yield of amide after the third use. Rao and co-workers later pu ...
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.