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. 19992-50-8, Name is ML329, formurla is C16H12N2O4S. In a document, author is Xie, Xiaoyu, introducing its new discovery. Formula: https://www.ambeed.com/products/19992-50-8.html.
An efficient Ag-promoted reaction of N-propargyl indoles and arylsulfinic acids to 2-sulfonated-9H-pyrrolo[1,2-a]indoles was developed. Using arylsulfinic acids as stable and less toxic sulfonylation agent, the reaction proceeded smoothly to give the desired products in good yields and excellent regioselectivity with a broad substrate scope.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles