One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 83-07-8, Name is 4-Aminoantipyrine, formurla is C11H13N3O. In a document, author is Chen, Zhangpei, introducing its new discovery. Application In Synthesis of 4-Aminoantipyrine.
Ruthenium-catalyzed alpha-carbonyl sulfoxonium ylide annulations with aryl substituted pyrazoles via C-H/N-H bond functionalizations
An efficient method for the construction of various pyrazolo[5,1-a]isoquinolines has been achieved via Ru(ii)-catalyzed alpha-carbonyl sulfoxonium ylide annulations with aryl substituted pyrazoles. This oxidant-free transformation occurred through pyrazole-directed C-H activation, Ru-carbene insertion, and acid-promoted carbonyl condensation processes, enabling dual C-C and C-N bond formation. A broad substrate scope with respect to both coupling components worked efficiently with high yields.
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Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics