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. 2307-00-8, name is 5-Amino-2-methylisoindoline-1,3-dione, A new synthetic method of this compound is introduced below., Computed Properties of C9H8N2O2
4-(3-Chloro-2-hydroxypropylamino)-N-methylphthalimide Twenty-five grams (g) (0.142 mole) 4-amino-N-methylphthalimide [Flitsch, Chem. Ber. 94:2494(1961)] and 20.7 g (0.21 mole) 1-chloro-2,3-epoxypropane were added to 150 ml 2,2,2-trifluoroethanol and the reaction mixture was heated to reflux with stirring for 48 hours. Seventy to eighty ml of 2,2,2-trifluoroethanol was removed by distillation and a heavy yellow precipitate formed when the remaining solution cooled to room temperature. This precipitate was triturated with ethyl acetate, collected by filtration and dried to give 29.5 g (77% yield) of the desired phthalimide intermediate m.p. 136-138.5 C. Analysis: Calculated for C12 H13 ClN2 O3: C, 53.64; H, 4.88; N, 10.45. Found: C, 53.87; H, 4.85; N, 10.81.
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; Miles Laboratories, Inc.; US4261893; (1981); A;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem