4 results about "Carbocation" patented technology

This invention relates to the field of solid electrolyte materials technology, and more particularly to an aluminum-based halide oxide solid electrolyte with a coating layer, its preparation method, and its application. The aluminum-based halide oxide solid electrolyte with a coating layer comprises aluminum-based halide oxide solid electrolyte particles and a coating layer covering the surface of the aluminum-based halide oxide solid electrolyte particles. The coating layer is made of a salt containing triphenyl carbocations or a salt containing triphenyl sulfide cations. Its cations have a three-conjugated aromatic ring structure, exhibiting excellent hydrophobicity. Simultaneously, under the driving force of acid-base reactions, the positively charged acidic groups in the coating layer fully react with the hygroscopic chloride anions in the material to generate a uniform and dense coating layer in situ, thereby improving the moisture resistance of the aluminum-based halide oxide solid electrolyte. Furthermore, this structure does not destroy the special viscoelastic physical properties inherent in the aluminum-based halide oxide solid electrolyte and exhibits high ionic conductivity.

This invention relates to a method for esterifying alkyl aromatics and amides via benzylic radical polarity reversal, belonging to the field of compound preparation technology. This invention leverages the advantages of electrochemical anodic oxidation to anolylate benzylic C(sp) groups. 3 The amide attacks the carbocation to form an imine intermediate, which is then hydrolyzed to break the C–N bond, thus achieving the synthesis of benzyl esters. This invention avoids the use of transition metals, high temperatures, high pressures, and stoichiometric amounts of hazardous oxidizing and reducing agents, and establishes good functional group tolerance, expanding the range of substrates and providing a supplementary approach for the synthesis of benzyl esters under mild conditions.

This invention belongs to the field of organic synthesis and relates to a method for preparing organosulfur ether compounds using photocatalysis. A disulfide compound 1 and tetrahydrofuran undergo a coupling reaction under the action of a base and a catalyst, and under ultraviolet light irradiation, to obtain organosulfur ether compound 3. This invention provides a novel method for preparing organosulfur compounds. Under light irradiation, a photocatalyst extracts hydrogen atoms from tetrahydrofuran to obtain alkyl radicals, which are then converted into carbocations through redox reactions. Simultaneously, the disulfide ether generates sulfur radicals under light irradiation, which produce sulfide anions under alkaline conditions. The sulfide anions and carbocations then undergo a coupling reaction to obtain sulfide compounds. The method provided by this invention is rationally designed, with mild reaction conditions, is environmentally friendly, and has low cost, achieving a yield of up to 91%. It provides a new method for the synthesis of organosulfur ether compounds and has promising industrial applications.

This invention relates to a method for preparing a catalyst for in-situ inhibiting lignin condensation during depolymerization under acidic conditions, and its application. The method uses nitrogen-doped lignin-derived porous carbon materials as a carrier, and introduces bimetallic active sites such as cerium and nickel by constructing a hierarchical porous structure using a template method. Under acidic conditions, waste polyethylene terephthalate (PET) undergoes ester bond cleavage under the action of the catalyst. The ethylene glycol generated in situ can interact with the highly active intermediate formed during lignin depolymerization, effectively "capping" the benzylic carbocation, thereby inhibiting the carbocation-induced C-C bond condensation reaction. This invention does not require the introduction of additional exogenous inhibitors and maintains a stable and continuous inhibitory effect under high-temperature acidic conditions. It provides a new technological paradigm for the synergistic resource utilization of mixed solid wastes and has significant scientific and application value in the fields of high-value biomass conversion and plastic recycling.