Adding a certain compound to certain chemical reactions, such as: 288-13-1, name is 1H-Pyrazole, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 288-13-1, Application In Synthesis of 1H-Pyrazole
Example 55:; N-[6-(2-Isopropyl-2H-pyrazol-3-yl)-2,4-dioxo-7-trifluoromethyl-l,4-dihydro-2H- quinazolin-3-yl]-methanesulfonamide; 1 -Isopropy 1- 1 H-pyrazole; A mixture of pyrazole (5 g, 73.44 mmol), NaHCO3 (12.2 g, 2 eq) and 2-bromopropane (15 mL, 2eq) was stirred at 1200C for 90 h. Over this period, 2-bromopropane was added when necessary to keep an adequate volume. The solids were removed by filtration and the resulting solution was distillated. From the distillation, a colorless syrup (4.6 g, bp 1480C, 57%) was collected..
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