12 results about "Onium compound" patented technology

The invention belongs to the technical field of pesticides, and particularly relates to a mesoionic pyrimidinium compound, and an N-oxide or salt and application thereof. The compound is shown as a general formula I, wherein X1 and X2 respectively and independently represent hydrogen, halogen, cyano, hydroxyl, amino, alkyl or halogenated alkyl; y1, Y2, and Y3 each independently represent hydrogen, halogen, or the like; q1 and Q2 respectively and independently represent CH2, O or S, and at least one of Q1 and Q2 is O; r1 and R2 respectively and independently represent halogen. The compound has an excellent prevention and treatment effect on pests such as spodoptera frugiperda and armyworm.

The invention belongs to the technical field of pesticides, and particularly relates to a mesoionic pyrimidinium compound, and an N-oxide or salt and application thereof. The compound is shown as a general formula I, wherein Q1 and Q2 respectively and independently represent O or S; x represents a cyano group, a cyano alkyl group, an aryl group or a heterocyclic group; y1 is halogen; y2 and Y3 each independently represent hydrogen, halogen, alkyl, or the like; and Z1, Z2, R1, R2, R3, R4, R5, R6, R7 and R8 independently represent hydrogen, halogen, cyano, nitro, alkyl and the like. The compound has an excellent prevention and treatment effect on pests such as spodoptera frugiperda, armyworm and prodenia litura.

The invention belongs to the technical field of pesticides, and particularly relates to a mesoionic pyrimidinium compound, and an N-oxide or salt and application thereof. The compound is shown as a general formula I, wherein Q1 and Q2 respectively and independently represent O or S; x represents a cyano group, a cyano alkyl group, an aryl group or a heterocyclic group; y1, Y2, Y3, Z1, Z2, R1, R2, R3, R4, R5, R6, R7, and R8 independently represent hydrogen, halogen, a cyano group, a nitro group, an alkyl group, etc. The compound has an excellent prevention and treatment effect on pests such as spodoptera frugiperda, armyworm and prodenia litura.

The invention belongs to the technical field of pesticides, and particularly relates to a mesoionic pyrimidinium compound, and an N-oxide or salt and application thereof. The compound is shown as a general formula I, wherein Q1 and Q2 respectively and independently represent O or S; x represents a cyano group, a cyano alkyl group, an aryl group or a heterocyclic group; y represents hydrogen, an alkyl group, an alkenyl group, an alkynyl group or the like; and Z1, Z2, R1, R2, R3, R4, R5, R6, R7 and R8 independently represent hydrogen, halogen, cyano, nitro, alkyl and the like. The compound has an excellent prevention and treatment effect on pests such as spodoptera frugiperda, armyworm and prodenia litura.

The application belongs to the technical field of chemical synthesis, and particularly relates to a synthesis method of 2-aryl-2-cyclohexanedione enol ester compounds. The method uses a transition metal complex as a catalyst, and uses a phenyl boronic acid compound and an iodine onium compound as raw materials, first synthesizes a 3-hydroxy-2-aryl-2-cyclohexenone compound, and then synthesizes the 2-aryl-2-cyclohexanedione enol ester compound through acylation. The reaction condition is mild, no additional additives (such as alkali-sodium acetate, expensive silver salt-silver acetate, etc.) need to be added, the C-C bond can be efficiently and quickly constructed, the 2-aryl-2-cyclohexanedione cyclization derivative is obtained, the reaction operation is simple, the reaction time is short, the method has high efficiency and high safety, the substrate range is wide, the functional group tolerance is good, the method conforms to the concept of green chemistry and high atomic economy, and is very suitable for large-scale industrial production.

The present application relates to the technical field of pesticides, and particularly relates to a mesoionic pyrimidinium compound, an N-oxide or salt thereof, and a use thereof. The compound is represented by general formula I, wherein Q1 and Q2 each independently represent O or S; X represents cyano, cyanoalkyl, aryl, or heterocyclyl; Y represents hydrogen, alkyl, alkenyl, alkynyl, or the like; and Z1, Z2, R1, R2, R3, R4, R5, R6, R7, and R8 each independently represent hydrogen, halogen, cyano, nitro, alkyl, or the like. The compound has an excellent control effect on pests such as spodoptera frugiperda, mythimna separata, spodoptera litura.

The invention discloses a synthesis method of an enamine compound and a recycling method of raw materials, and belongs to the technical field of pesticide chemical industry. According to the method, ethyl trifluoroacetoacetate is used as a raw material, substituted phenylacetic acid ammonium is used as an amination reagent, 3-amino-4, 4, 4-ethyl trifluorocrotonate is prepared through a reflux water diversion reaction in a specific organic solvent, and efficient recovery of the amination reagent is achieved through ammonia water mediation. Water generated by reaction is removed in time through reflux water diversion, raw material ester hydrolysis is effectively inhibited, and the yield of enamine is larger than or equal to 98%; and in the recovery process, sublimation is avoided by utilizing the high-boiling-point characteristic of substituted phenylammonium acetate, the problem of condenser blockage is solved, the recovery yield is greater than or equal to 99%, direct application can be realized, the cost is remarkably reduced, and green chemical requirements are met.

Provided is a fluororubber crosslinking composition containing a fluororubber (a) capable of polyol crosslinking and a crosslinking agent (b), the crosslinking agent (b) being at least one selected from the group consisting of a compound represented by general formula (b1) described in the specification, a compound represented by general formula (b2) described in the specification, and a salt of any one of these compounds with an alkali metal, an alkaline earth metal, or an onium compound.

The application discloses a kind of double sulfur ylide compounds, its preparation method and application.The application discloses a kind of compound as shown in formula I: Wherein, m and n are independently 0, 1, 2, 3, 4 or 5;R 7 And R 8 Independently be C1~C6Alkyl, C1~C6Alkoxy, nitro or halogen;E is CO2R 9 ;R 9 C1~C6Alkyl.This double sulfur ylide compound can be used as the difluorocarbene precursor of photo initiation, can release difluorocarbene under room temperature and neutral blue light condition, can realize the gem difluorocyclopropanation reaction of olefin under photocatalysis and the difluoromethylation reaction of alcohol, provides important methodological support for the post modification of functional molecule in medicine, material and the like.

Provided is a fluoroelastomer crosslinkable composition, containing a polyol-crosslinkable fluoroelastomer (a) and a cross-linking agent (b), wherein the cross-linking agent (b) is at least one selected from the group consisting of a compound represented by the general formula (b) set forth in the description and a salt of the compound with an alkali metal, an alkaline earth metal, or an onium compound.

Provided is an on-machine development-type lithographic printing plate precursor comprising a support body and an image recording layer on the support body. The image recording layer includes an onium compound, a borate compound, and a polymerizable compound. The solubility, with respect to 2-ethylhexyl methacrylate at 25°C, of a salt in which the cation part of the onium compound and the anion part of the borate compound are paired is 0.01 mass% or more. Also provided are: a method for producing a lithographic printing plate using the on-machine development type lithographic printing plate precursor; a lithographic printing method; and a laminate.

The invention belongs to the technical field of pesticides, and particularly relates to a mesoionic pyrimidinium compound, and an N-oxide or salt and application thereof. The compound is shown as a general formula I, wherein Q1 and Q2 respectively and independently represent O or S; x represents a cyano group, a cyano alkyl group, an aryl group or a heterocyclic group; y, R1, R2, R3, R4, R5, R6, R7, R8 and R9 independently represent hydrogen, halogen, cyano, nitro, alkyl and the like respectively. The compound has an excellent prevention and treatment effect on pests such as spodoptera frugiperda, armyworm and prodenia litura.