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. 10412-93-8, name is N-Benzyl-2-cyanoacetamide, A new synthetic method of this compound is introduced below., category: nitriles-buliding-blocks
EXAMPLE 6 Synthesis of Cyanoester G Cinnamaldehyde E (11.0 g; corrected with the HPLC purity) was dissolved in methanol (500 g). The solution was filtered over a nutsch, which is rinsed with methanol (80 g). At 20-25 C., intermediate F (8.5 g) was added in one portion to the methanolic solution followed by the addition of piperidine (9.1 g) in several portions. The deep red solution was stirred for at least 3 hours and an in-process control performed. Upon total conversion of starting material, 370 g of methanol was distilled off at 4045 C. To the resulting residue was added 16.6 g of HCl (32%) and water (150 g). The color changed from red to yellow and the product precipitated out of solution provided that pH was between 1 and 1.3. The suspension was then cooled to 0-5 C. and stirred for at least 2-3 hours (up to 20 hours) to maximize the yield. The suspension was then filtered via a nutsch and the residue rinsed with water (25 g) to yield 15.1 g of G. The wet G (15 g) was then suspended in acetonitrile (600 g) and heated to 80-82 C. for 1 h. The suspension was then cooled to 0-5 C. and stirred for at least 3 h. The wet material was separated with a nutsch and rinsed twice with a mixture of ethanol (10 g) and water (20 g). Final drying in the vacuum dryer at 45 C. yields 10.2 g of yellowish G in an overall yield of 56% (over two steps).
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; LymphoSign Inc.; US2005/33090; (2005); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts