Amerigo Scientific
Amerigo Scientific
Amerigo Scientific
Phenylsulfonylacetone is an active methylene compound. It undergoes asymmetric reduction in the presence of fermenting bakers′ yeast to afford (S)-(+)-2-hydroxypropyl phenyl suIfone.
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Amerigo Scientific
Phosphonoacetic acid inhibits specifically human cytomegalovirus DNA synthesis in virus-infected human fibroblasts. It also inhibits the synthesis of herpes simplex virus DNA in infected cells and the activity of the virus-specific DNA polymerase in vitro.
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Amerigo Scientific
Reaction of phosphorus pentabromide with phosphorus pentoxide at elevated temperatures affords phosphorus(V) oxybromide. Its Raman spectrum has been studied and the molecule has been reported to exhibit point group symmetry C3v. Phosphorus(V) oxybromide (Phosphorus oxide bromide) participates in the preparation of 1:1 addition ionic compound having melting point at 154·0°C, via reaction with gallium tribromide. […]
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Amerigo Scientific
Phthalamic acid can be synthesized from the reaction between ammonia and phthalic anhydride by a modified Auger′s method. Kinetic studies of the intramolecular carboxylic-group assisted hydrolysis of amide bond of phthalamic acid provided the value of pseudo-first order rate constant (kobs) as 5. 1Ă—10-5sec-1 at pH 1. 3-1. 8 and 35°C. It undergoes hydrolysis about […]
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Amerigo Scientific
Amerigo Scientific
Phthalic anhydride is an industrially important chemical. It can be prepared from o-xylene or naphthalene. It is widely used for the industrial preparation of plasticizers for PVC (polyvinyl chloride). Phthalic anhydride can be synthesized via oxidation of o-xylene, in the presence of V2O5/TiO2 monolithic catalyst supported by aluminium honeycomb.
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Amerigo Scientific
Phthalic anhydride is an anhydride of phthalic acid and a key intermediate in the production of plasticizers, dyes, polyesters resins, modifiers for rubber, and polymers.
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