Category: 865998-46-5

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 865998-46-5, name is Ethyl 5-nitro-1H-imidazole-2-carboxylate, A new synthetic method of this compound is introduced below., Recommanded Product: 865998-46-5

15 g (81 mmol) of 4-nitro-1H-imidazole-2-carboxylic acid ethyl ester is stirred under argon together with 13.13 g (97.2 mmol) of cyclopropyl methyl bromide and 22.4 g (162 mmol) of potassium carbonate in 165 ml of DMF for 1 hour at 80 C. After cooling, the reaction mixture is diluted with water and extracted four times with ethyl acetate. The combined organic phases are washed once with water and three times with saturated sodium chloride solution, dried with magnesium sulfate, and concentrated by evaporation in a vacuum. The crystalline residue is immediately reused for the next reaction. Yield: 17.59 g (70% of theory) LC-MS (Method 1): Rt=2.02 min. MS (EST+): m/z=240 [M+H]+ 1H-NMR (300 MHz, DMSO-d6): delta=8.2 (s, 1H), 4.4 (q, 2H), 4.3 (d, 2H), 1.4 (m, 4H), 0.55 (q, 2H), 0.45 (q, 2H) ppm.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; AICURIS GMBH & CO. KG; Schwab, Wilfried; Schiffer, Guido; Voegtli, Kurt; Kyas, Andreas; Osswald, Gerd; US2014/315924; (2014); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adding a certain compound to certain chemical reactions, such as: 865998-46-5, name is Ethyl 5-nitro-1H-imidazole-2-carboxylate, belongs to imidazoles-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 865998-46-5, Computed Properties of C6H7N3O4

Example 33A Ethyl 1-(2,6-dichlorobenzyl)-4-nitro-1H-imidazole-2-carboxylate 1000 mg (5.4 mmol) of ethyl 4-nitro-1H-imidazole-2-carboxylate together with 1426 mg (5.94 mmol) of 2,6-dichlorobenzyl bromide were dissolved in 37 ml of DMF, and 2112 mg (6.48 mmol) of cesium carbonate were added. The mixture was stirred at 75 C. for 4 h. After cooling to RT, the mixture was added to 100 ml of ice-water. The precipitated product was filtered off and washed with water. The beige solid was dried under high vacuum. This gave 1500 mg (81% of theory) of the target compound. LC/MS [Method 1]: Rt=2.05 min; MS [ESIpos]: m/z=344 and 346 (M+H)+ 1H-NMR (400 MHz, DMSO-d6): delta=1.35 (t, 3H), 4.41 (q, 2H), 5.96 (s, 2H), 7.53 (dd, 1H), 7.59-7.64 (m, 2H), 7.96 (s, 1H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, Ethyl 5-nitro-1H-imidazole-2-carboxylate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; BAYER INTELLECTUAL PROPERTY GMBH; Furstner, Chantal; Keldenich, Joerg; Delbeck, Martina; Kolkhof, Peter; Kretschmer, Axel; Pluschkell, Ingo; Pook, Elisabeth; Schmeck, Carsten; Trubel, Hubert; US2013/190330; (2013); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem