Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 5952-92-1, name is 1-Methyl-1H-pyrazole-4-carboxylic acid, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 1-Methyl-1H-pyrazole-4-carboxylic acid
EXAMPLE 2 N-(2-Thienylsulfonyl)-1-methylpyrazole-4-carboxamide 3.8 g of 1-methylpyrazole-4-carboxylic acid and 4.9 g of carbonyldiimidazole in 100 ml of 1,2-dichloroethane are heated at 55° C. for 3.5 h. 4.9 g of 2-thienylsulfonamide and 5.4 ml of triethylamine are added and then the mixture is heated at 55° C. for 13 h. After cooling, 40 ml of 10percent strength aqueous NaOH solution are added and then the pH of the aqueous phase is adjusted to 1. The precipitate is removed and dried under reduced pressure. 5.2 g of N-(2-thienylsulfonyl)-1-methylpyrazole-4-carboxamide with a melting point of 174°-180° C. are obtained (active ingredient Example No. 103).
Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 5952-92-1.