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A highly efficient composite catalyst for Michael addition reactions and its application methods
ActiveCN121819947BImprove the environmentOptimize spatial structureOrganic chemistryOrganic-compounds/hydrides/coordination-complexes catalystsPtru catalystOrganic chemistry
A highly efficient composite catalyst for the Michael addition reaction and its application method are disclosed, relating to the field of catalytic chemistry. The composite catalyst comprises a main catalyst system, a co-catalytic modifier, and a reaction terminator. The main catalyst system is a composite of Lewis base catalyst A and metal salt catalyst B. The co-catalytic modifier works synergistically with the main catalyst system to enhance catalytic performance. In application, through steps such as raw material pretreatment, catalyst preparation, isothermal dropwise addition, temperature-controlled reaction, and termination treatment, this composite catalyst is used in the Michael addition step of the synthesis of 2-chloro-5-chloromethylpyridine, achieving synergistic optimization of catalytic activity and selectivity, providing a reliable technical solution for the efficient synthesis of related pesticide intermediates.
Owner:WUWEI JIEDA TECH CO LTD
A cabinet body structure of a commercial kitchen disinfection cabinet
ActiveCN224387815UMeet disinfection needsOptimize spatial structureLavatory sanitoryHeatMechanical engineeringIndustrial engineering
Owner:CHONGQING CHANGSHENG KITCHENWARE CO LTD