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. 621-50-1, name is 2-(3-Nitrophenyl)acetonitrile, A new synthetic method of this compound is introduced below., Computed Properties of C8H6N2O2
A mixture of nitrobenzene acetic acid (1 g, 5.52 mmoles), 1.66 mL OF SOC12, 10 mL dry CHC13 was refluxed for 14 hours. CHC13 and excess thionyl chlorid were removed in vacuo, and the residue was evaporated twice with 25 mL of toluene to remove traces of thionyl chlorid. The residue was taken into 10 mL of toluene and 30 mL of cold concentrated ammonium hydroxyde were added. The white solid formed was collected and dried with etanol in vacuo. Yield: 79 %. ‘H NMR (DMSO-d6, 300MHZ) 8 : 8.14 (M, 2H), 7.71 (M, 2H), 7.06 (brs, 2H), 3.58 (s, 2H). 2- (3-NITROPHENYL) acetamide was added with 10 mL of POC13 and the mixture was heated at reflux for 2 hours. After cooling, the mixture was poured into ice, basified with NA2CO3 and extracted with CH2C12. The organic layer was dried over NA2S04, filtered and evaporated. Purified by flash chromatography on silica gel CH2C12. Yield : 41% H NMR (CDC13,300 MHz) 5 : 8. 14 (M, 2H), 7.69 (d, 1H, J = 8HZ), 7.56 (M, 1H), 3.88 (s, 2H). A solution of 15 mL HBr 48% was cooled to 0C. (430 mg, 2.65 mmoles) OF 3-NITROBENZONITRILE, (574 mg, 4. 85 mmoles) of Sn were added successively. The mixture was stirred at room temperature for 3 hours, then poured into ice. The solution was basified with NA2C03, extracted with CH2C12, dried, filtered and evaporated. Purified by flash chromatography on silica gel ETOH/CH2CL2 (2: 98). Yield: 32% H NMR (DMSO-d6, 300MHZ) 8 : 7.37 (M, 2H), 6.81 (M, 2H), 3.86 (s, 2H). 3-AMINOBENZONITRILE was then reacted with 2-chloroethylisocyanate as described in examples 1- 12 to obtain desired product. Purified by flash CHRMATOGRAPHY on silica gel ETOH/CH2CL2 (5: 95). Yield: 78% H NMR (CDCL3, 300 MHz) 8 : 8.12 (brs, NH, 1H), 7.26 (M, Ar, 4H), 6.97 (brs, NH, 1H), 3.63 (m, CH2,6H).
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; IMOTEP INC.; WO2004/106292; (2004); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts