9 results about "Benzyl Compounds" patented technology

An oxidation strategy of benzyl C-H compounds, halides, alkenes, alkynes or alcohols mediated by butanedione, which can efficiently prepare alcohol, aldehyde, ketone or carboxylic acid compounds by using 1o, 2oor 3obenzyl C-H compounds, halides, alkenes, alkynes or alcohols as raw materials, adding butanedione, acid and solvent, and then irradiating under oxygen condition by visible light. The method provides an oxidation method for many natural products, drugs and materials, which does not need traditional oxidants, does not use transition metal catalysts, uses cheap butanedione as photosensitizer, uses water as solvent, and efficiently oxidizes 1o, 2oor 3obenzyl C-H compounds, halides, alkenes, alkynes or alcohols to prepare alcohol, aldehyde, ketone and carboxylic acid compounds under the induction of visible light. The whole production process is green, low-cost, wide-substrate applicability, high-yield, simple operation, no explosion risk, and has very significant advantages compared with the previous production process.

The photochemical synthesis method for preparing the solid hydrogen peroxide compound comprises the following steps: (1) loading a benzyl compound and a salt, an acid or urea into a reactor and introducing oxygen or air to form a reaction system, irradiating the reaction system with a light source containing ultraviolet light, controlling the reaction temperature to be between room temperature and 60 DEG C, and allowing the reaction to proceed for at least 10 minutes; and (2) crystallizing, separating and drying the liquid system containing the hydrogen peroxide compound to obtain the solid hydrogen peroxide compound. The present application provides a new technical solution for preparing the solid hydrogen peroxide compound. The method is simple and safe, and overcomes the defects of the reaction mechanism of the photocatalyst system.

The photochemical synthesis method for producing H2O2 using benzyl compounds as the hydrogen source described in this invention uses oxygen or air as the oxygen source and ultraviolet light as the energy driving force. The process steps are as follows: (1) The benzyl compound is loaded into a reactor and oxygen or air is introduced to form a reaction system. The reaction system is irradiated with a light source containing ultraviolet light, and the reaction temperature is controlled at 20-60°C. The reaction time is at least 10 minutes. After the reaction is completed, an organic liquid containing H2O2 is obtained; (2) The organic liquid containing H2O2 obtained in step (1) is extracted with water as the extractant at the reaction temperature or room temperature. The H2O2 aqueous solution is obtained by phase separation. The above method can not only improve the synthesis rate and economy of H2O2, but also reduce energy consumption and production costs, eliminate safety hazards, and facilitate industrialization.

The invention provides a resin composition. The resin composition comprises the following components in parts by weight: 100 parts of maleimide resin with a structure as shown in a formula (1); 1.5 parts by weight to 20 parts by weight of hydrogenated polybutadiene; and 10 to 35 parts by weight of a vinyl-containing benzyl compound, in the formula (1), n is the average number of repeating units (based on the number-average molecular weight), and n is a number from 1 to 20, and R1 to R4 are each independently hydrogen or a C1-C3 alkyl group. The invention also provides an article made from the aforementioned resin composition.

The invention discloses an electrochemical synthesis method and application of a prolinol compound, and belongs to the technical field of synthesis of organic compounds, the electrochemical synthesis method comprises the following steps: taking a benzyl-containing compound as a substrate, adding the substrate, a metal catalyst, an iodine source additive and an electrolyte into an organic solvent, and carrying out electrochemical reaction, separation and purification to obtain the prolinol compound. The prolinol compound is obtained. By matching the specific substrate, the metal catalyst and the oxide, the yield of the prolinol compound is increased, and the preparation method is simple, economical and environmentally friendly. The prolinol derivative is suitable for preparing the prolinol derivative-based antitumor drug.

The method includes forming a first layer and a second layer on a substrate; exposing the first layer and the second layer to a benzyl compound to form a passivation layer on a surface of the first layer without forming a passivation layer on the second layer; and, after forming the passivation layer on the first layer, at least one of depositing a third layer on the second layer or etching the second layer.

The invention discloses an o-nitrophenyl benzyl compound as well as preparation and application thereof. Specifically, the o-nitrophenyl benzyl compound with a novel structure as shown in a formula (I) is synthesized by introducing an o-nitrobenzene structure on the basis of existing or researched pesticide molecules and derivatives or prodrug active molecules thereof. The compound provided by the invention can release active substances in a light-controlled manner, and has remarkable insecticidal and bactericidal activity or plant growth regulating effect.

A multifunctional vinylbenzyl compound is obtained by a reaction between a compound having an aromatic condensed ring, a compound having a biphenylene group, and a compound having a vinylbenzyl group. Further, a resin composition, a prepreg, a resin film, a metal-clad laminate, a printed wiring board, and a semiconductor package are obtained using the multifunctional vinylbenzyl compound.

The application discloses a selective oxidation method of benzyl compounds and allyl compounds. The method uses benzyl compounds and allyl compounds as raw materials, halogenated alkane as a catalytic reagent, acetonitrile as a reaction solvent, air as a molecular oxygen source, and performs a reaction under light conditions to selectively oxidize to generate benzyl ketone compounds and allyl compounds. The method has the advantages of high reaction efficiency, mild reaction conditions, convenient operation, economy and greenness, and is suitable for large-scale production.