LEAPChem Supplies Platinum dioxide (1314-15-4) Now
Nov. 2019/9/17 14:10:21 By LEAP Chem
If you are interested in Platinum dioxide or its derivatives, look no further than LEAPChem. We are an ISO:9001 certified organization attesting to the highest quality management practices in the pharmaceutical chemicals industry. Our professional team of technical specialists, logistics, compliance and customer service experts will provide a safe, time efficient, and cost-effective process from manufacturer to delivery at the port or warehouse of your choice. LEAPChem - Pharmaceutical Chemicals is happy to highlight Platinum dioxide, a very promising chemical in the global chemical market.
Basic Information of Platinum dioxide
Chemical Name: Platinum dioxide
Cas No.: 1314-15-4
Molecular Formula: PtO2
Adams' catalyst, also known as platinum dioxide, is usually represented as platinum(IV) oxide hydrate, PtO2?H2O. It is a catalyst for hydrogenation and hydrogenolysis in organic synthesis. This dark brown powder is commercially available. The oxide itself is not an active catalyst, but it becomes active after exposure to hydrogen whereupon it converts to platinum black, which is responsible for reactions.
Adams' catalyst is used for many applications. It has shown to be valuable for hydrogenation, hydrogenolysis, dehydrogenation, and oxidation reactions. During the reaction, platinum metal (platinum black) is formed which has been cited to be the active catalyst. Hydrogenation occurs with syn stereochemistry when used on an alkyne resulting in a cis-alkene. Some of the most important transformations include the hydrogenation of ketones to alcohols or ethers (the latter product forming in the presence of alcohols and acids) and the reduction of nitro compounds to amines. However, reductions of alkenes can be performed with Adam's catalyst in the presence of nitro groups without reducing the nitro group. When reducing nitro compounds to amines, platinum catalysts are preferred over palladium catalysts to minimize hydrogenolysis. The catalyst is also used for the hydrogenolysis of phenyl phosphate esters, a reaction that does not occur with palladium catalysts. The pH of the solvent significantly affects the reaction course, and reactions of the catalyst are often enhanced by conducting the reduction in neat acetic acid, or solutions of acetic acid in other solvents. Little precaution is necessary with the oxide but, after exposure to H2, the resulting platinum black can be pyrophoric. Therefore, it should not be allowed to dry and all exposure to oxygen should be minimized.
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