摘要:
There is provided a method of producing L-phenylalanine in high optical purity which comprises treating an N-acylphenylalanine alkyl ester in L form, in the presence of water, with an enzyme capable of hydrolyzing the N-acylphenylalanine alkyl ester in L form to give'L-phenylalanine.
摘要:
Novel trimethylolheptanes having three highly reactive hydroxyl groups are provided. They are useful as raw materials for the production of polyesters for use in or as raw materials or modifiers for paints, inks, adhesives, coating compositions and molding resins. Uses for the trimethylolheptanes are also provided.
摘要:
Novel trimethylolheptanes having three highly reactive hydroxyl groups are provided. They are useful as raw materials for the production of polyesters for use in or as raw materials or modifiers for paints, inks, adhesives, coating compositions and molding resins. Uses for the trimethylolheptanes are also provided.
摘要:
There are provided a production process for polymers whereby hydroxyl groups can be introduced in a short time without leaving organic volatile components or ash in the polymers, as well as polymers obtained by the production process. A polymer with a substituent is contacted with high temperature, high pressure water to replace the substituent with a hydroxyl group.
摘要:
The present invention provides a process for producing 2-methyl-1,4-naphthoquinone characterized by reaction between 2-methylnaphthalene and hydrogen peroxide and/or an organic peracid in a solvent comprising a carboxylic acid in the presence of a palladium compound and sulfuric acid.
摘要:
There is provided a method of producing L-phenylalanine in high optical purity which comprises treating an N-acylphenylalanine alkyl ester in L form, in the presence of water, with an enzyme capable of hydrolyzing the N-acylphenylalanine alkyl ester in L form to give'L-phenylalanine.