Brief introduction of 17347-61-4

As the paragraph descriping shows that 17347-61-4 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.17347-61-4,2,2-Dimethylsuccinicanhydride,as a common compound, the synthetic route is as follows.

2,2-Dimethylsuccinic anhydride (2 g, 8×2 mmol) was added to a stirred mixture of dihydrobetulinic aldehyde (1 g, 2 mmol) and A- dimethylaminopyridine (2.2 g, 8×2 mmol) in anhydrous pyridine 15 mL at room EPO temperature. The reaction mixture was stirred for 48 hours at 60 C and cooled down to room temperature. The mixture was diluted with 5percent HCl solution (50 mL), the off-white precipitate was filtered off, washed with water (2x 20 mL) and dried. Washing with hot methanol gave white solids (0.83 g, 67percent total yield).1H NMR (CDCl3): delta 9.63 (s, IH), 4.5 (dd, J1 = 10.1 Hz, J2 = 5.5 Hz, IH), 2.6 (m, 2H), 2.25-0.6 (m, 53H)., 17347-61-4

As the paragraph descriping shows that 17347-61-4 is playing an increasingly important role.

Reference£º
Patent; REGENTS OF THE UNIVERSITY OF MINNESOTA; WO2006/105356; (2006); A2;,
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