Related Products of 5428-09-1, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 5428-09-1, name is 2-Allylisoindoline-1,3-dione belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below.
To a solution of 2-allylisoindoline-1,3-dione I1 (13.0 g, 69.4 mmol) in CH2Cl2 (500 mL) was added AllylTMS (79.0 g, 110 mL, 694 mmol) and Grubbs I generation catalyst. The reaction was heated to 60¡ã C. and stirred under reflux for 4 h. Tris(hydrodxymethyl)phosphine (1 M solution in i-PrOH, 58 mL) was added and stirred under reflux for 12 h, while the color of the reaction turned from black to orange. Sat. aq. NaCl solution (100 mL) was added to the reaction and the organic phase was separated. The aqueous phase was extracted with CH2Cl2 (3¡Á200 mL). The combined organic layers were dried over MgSO4 and the solvent was removed under reduced pressure. Column chromatography over SiO2 (Cyclohexane/EtOAc=85:15) afforded the title compound (15.0 g, 54.9 mmol, 78.9percent) as a yellow resin. (0400) Rf: 0.57 (Cyclohexane/EtOAc=85:15) (0401) 1H NMR (300 MHz, CDCl3) delta=?0.10-0.09 (m, 9H), 1.44 (d, J=8.2 Hz, 1.6H), 1.72 (d, J=8.8 Hz, 0.4H), 4.21 (d, J=6.5 Hz, 1.6H), 4.29 (dd, J=14.5, 5.9 Hz, 0.4H), 5.26-5.47 (m, 0.8H), 5.56-5.70 (m, 0.2H), 5.70-5.87 (m, 0.8H), 5.94-6.09 (m, 0.2H), 7.65-7.74 (m, 2H), 7.79-7.88 (m, 2H). (0402) 13C NMR (75 MHz, cdcl3) delta=?2.05, ?1.83, ?1.43, 18.92, 22.73, 34.72, 39.87, 120.51, 121.30, 123.12, 130.78, 132.24, 133.76, 133.90, 167.99.
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, 2-Allylisoindoline-1,3-dione, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; Max-Planck-Gesellschaft zur Forderung der Wissensc haften e.V.; Wang, Yansong; Hausch, Felix; Bischoff, Matthias; Pomplun, Sebastian; (121 pag.)US2017/2003; (2017); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem