26-Sep-21 News New downstream synthetic route of 100-54-9

According to the analysis of related databases, 100-54-9, the application of this compound in the production field has become more and more popular.

Reference of 100-54-9, Adding some certain compound to certain chemical reactions, such as: 100-54-9, name is Nicotinonitrile,molecular formula is C6H4N2, 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 100-54-9.

EXAMPLE 28 3-Pyridinecarboxamidine hydrochloride To a solution of 3-cyanopyridine (208 g, 2.0 mol) in methanol (100 ml) in an ice-bath was added sodium methoxide (11.2 g, 0.2 mol). The reaction mixture was stirred until all of the sodium methoxide had dissolved and was subsequently stoppered and placed in the refrigerator for 96 hours. Ammonium chloride (118 g, 2.2 mol) was then added and the reaction mixture was stirred in an ice-bath for 8 hours, followed by room temperature for 24 hours. The reaction mixture was filtered and the filtrate was concentrated in vacuo. The residue was taken up in boiling ethanol (2 l), the solution was filtered and cooled to cause precipitation. The solid was collected by filtration and recrystallized in boiling n-propanol (1.4 l) to afford 153 g of a white solid. The filtrates were combined, concentrated in vacuo and the residue was recrystallized from n-propanol to afford 17.5 g of a white solid. The filtrate was once again concentrated in vacuo and the residue was recrystallized from n-propanol (500 ml) to afford 73 g of a white solid. The three crops were combined to afford 243.5 g (78%) of 3-pyridinecarboxamidine hydrochloride, m.p. 185-190 C. when dried at 60 C. in high vacuum.

According to the analysis of related databases, 100-54-9, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Sterling Winthrop Inc.; US5294612; (1994); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem