12 results about "Benzoxazinones" patented technology

The present application relates to processes and intermediates used in the manufacture of polyfluorophenyl benzoxazinones.

The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a benzoxazinone-derivative herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.

This invention provides a method for preparing 2,2'-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one, relating to the field of compounds. The preparation method of this invention includes the following steps: (1) reacting anthranilic acid with terephthaloyl chloride in an organic solvent to generate intermediate A; (2) centrifuging the reaction product of step (1) to separate the wet crystalline intermediate A and the centrifugal mother liquor; (3) performing a cyclization reaction between the wet crystalline intermediate A from step (2) and acetic anhydride; (4) centrifuging, washing, and drying the reaction product of step (3) to obtain the target 2,2'-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one product. This invention prepares 2,2'-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one with not only low yellowness values ​​and high purity, but also high yield. The preparation method of the present invention has significant industrial value, and is particularly applicable to the field of polymer material additives where strict requirements are placed on product purity and yellowness.

Synergistic stabilizer compositions having a stabilizing amount of a co-synergist; optionally a stabilizing amount of a co-active agent; a stabilizing amount of an ultraviolet light absorber selected from an ortho-hydroxyphenyl triazines, ortho-hydroxy benzophenones, oxanilides, cyanoacrylates, benzoxazinones, optionally ortho-hydroxyphenyl benzotriazoles, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer, are provided herein. The total weight of co-synergist (IV) and co-active agent (when present) is from 1 wt. % to 99 wt. %, based on the total weight of the stabilizer composition; and the weight ratio of co-synergist to co-active agent (when present) is 1:99 to 99:1. Also disclosed are masterbatch concentrates, stabilized polymer compositions, and stabilized articles of manufacture, all containing the stabilizer composition.

The invention discloses a crystal of a benzoxazinone compound and a preparation method of the crystal, and particularly discloses a compound shown as a formula (I) and a preparation method and application of the crystal of the compound. # imgabs0 #

This invention discloses a highly efficient selective UV-absorbing film based on polyvinyl acetal and its preparation method, belonging to the technical field of polymer functional membrane materials. The UV-absorbing film comprises the following components in parts by weight: 55-95 parts of matrix resin, 5-45 parts of plasticizer, 0.005-1.2 parts of core UV absorber, 0.01-0.3 parts of auxiliary UV absorber, 0.01-0.8 parts of composite antioxidant, 0.01-0.8 parts of light stabilizer, and 0.0025-0.0065 parts of metal ion additive. The core UV absorber is an alkyl-modified benzoxazinone compound, and the composite antioxidant is a combination of a hindered phenolic resin as the main antioxidant and a thiophosphate ester as the auxiliary antioxidant. This invention achieves highly efficient blocking of UV-B radiation and high transmittance of UV-A radiation. Simultaneously, the film material has advantages such as low initial yellowing, excellent long-term anti-yellowing performance, good thermal stability, good compatibility with the matrix, and no exudation. The present invention also provides a method for preparing the core UV absorber and a method for preparing the membrane, which are simple processes and suitable for industrial production.

The present invention relates to protoporphyrinogen oxidase inhibitors of the general formula (I)where the variables are defined herein. The invention features processes and intermediates for preparing the benzoxazinones of formula (I), compositions comprising them, and their use as herbicides—i.e. for controlling harmful plants. The invention also features methods for controlling unwanted vegetation comprising allowing an herbicidal effective amount of at least one benzoxazinone of formula (I) to act on plants, their seed, and / or their habitat.

The present disclosure relates to fused bicyclic compounds containing a ring core such as 2H-benzo[e][1,3]oxazin-4(3H)-one, 2,3-dihydrothieno[2,3-e][1,3]oxazin-4-one and 2,3-dihydrothieno[3,2-e][1,3]oxazin-4-one, which act as allosteric inhibitors of epidermal growth factor receptor (EGFR); pharmaceutical compositions comprising the compounds, optionally in combination with a second active agent, and methods of treating or preventing kinase-mediated disorders including cancer and other proliferative diseases.

The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a benzoxazinone-derivative herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.

The present invention discloses a weather-resistant epoxy resin composite material and a preparation method thereof. The weather-resistant epoxy resin composite material is prepared from the following components in parts by weight: 800-1000 parts of bisphenol A type E-51 epoxy resin; 80-100 parts of diethylenetriamine; 90-120 parts of epoxypropane benzyl ether; 1-15 parts of antioxidant; 2-5 parts of 2,2'-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one; 2-5 parts of N-(2-ethylphenyl)-N'-(2-ethoxy-5-tert-butylphenyl)oxalyldiamine. In the present invention, 2,2'-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one and N-(2-ethylphenyl)-N'-(2-ethoxy-5-tert-butylphenyl)oxalyldiamine are added and used as a compound weather-resistant agent, which can greatly increase the weather resistance of bisphenol A type epoxy resin and at the same time maintain relatively excellent mechanical properties.