5 results about "Benzoylformic acid" patented technology

The invention relates to the technical field of bioengineering bacteria. The invention provides a saccharomyces cerevisiae engineering bacterium capable of synthesizing p-anisaldehyde from the beginning and a construction method of the engineering bacterium. A saccharomyces cerevisiae recombinant strain JS1-15 is used as an original strain; the saccharomyces cerevisiae engineering bacteria are obtained by heterologous expression of 4-hydroxymandelic acid synthetase HmaS, heme oxygenase HMO, benzoyl formate decarboxylase BFD and methyltransferase 4VPMT1. The saccharomyces cerevisiae engineering bacteria are used for preparing the saccharomyces cerevisiae engineering bacteria. The saccharomyces cerevisiae engineering bacterium disclosed by the invention can realize a complete de novo biosynthesis path from 4-hydroxyphenylpyruvic acid to p-anisaldehyde by taking glucose as a unique carbon source, and has good industrial application potential.

The present application relates to diaminopimelic acid dehydrogenase mutant and its application in D-phenylglycine synthesis. The present application discloses a diaminopimelic acid dehydrogenase mutant which is obtained by molecular modification of diaminopimelic acid dehydrogenase from Bacillus thermozeamaize, a nucleic acid coding the diaminopimelic acid dehydrogenase mutant, a recombinant expression vector containing the nucleic acid, a recombinant expression transformant containing the recombinant expression vector, and the use of the diaminopimelic acid dehydrogenase mutant in the synthesis of D-phenylglycine from asymmetric reduction of aminated benzoylformic acid. Compared with other D-phenylglycine synthesis methods, the route of the present application is simple, the theoretical yield is high, the atom economy is good, the substrate concentration and the product yield are high, and the optical purity of the product is greater than 99%. Therefore, the present application belongs to an environmentally friendly, high stereoselectivity and green and environmentally friendly biosynthesis method, and has good application prospect in the actual production of D-phenylglycine.

The present application provides a kind of photocuring composition and its application, the composition includes the following components: (a) at least one benzoyl formate compound;(b) at least one ethylenically unsaturated photopolymerizable compound;Wherein the benzoyl formate compound is by the compound shown in general formula (I) and the compound shown in general formula (II) and the compound shown in general formula (III) are reacted, the solubility of the benzoyl formate compound of the present application is excellent, the sensitivity of the obtained product does not reduce compared with the existing small molecule sensitivity, and the hardness of the product is improved under LED curing.

This invention discloses a formulation, preparation method, and application method of an environmentally friendly solvent-free UV battery box coating that can replace blue film, belonging to the field of UV curable coatings and new energy battery protection technology. The coating is a 100% solids-containing solvent-free system, and its formulation includes: polyurethane acrylate, silicone-modified acrylate; TMPTA, IBOA, DMAA; TPO / L-TPO type acylphosphine oxide, phenyl bis(2,4,6-trimethylbenzoyl)phosphine oxide, methyl benzoylformate; titanium dioxide, phthalocyanine blue, fumed silica; adhesion promoter, leveling agent, and silane coupling agent. This coating has zero VOC, insulation withstand voltage ≥DC6000V / 60s, adhesion grade 0, no abnormalities after 72h electrolyte resistance, and UL94V0 flame retardancy. It can be applied in various ways, replacing PET blue film and pressure-sensitive adhesive processes, meeting the insulation protection and green manufacturing requirements of high-voltage platform power batteries.

A benzoylformic acid amide derivative is provided that has photopolymerization initiation properties and photosensitization effect with respect to long-wavelength ultraviolet light, and a cured product obtained from a curable composition that contains the benzoylformic acid amide derivative has an extremely low content of a low molecular weight component, and has high yellowing resistance, durability and safety.