Extracurricular laboratory: Synthetic route of 2568-33-4

At the same time, in my other blogs, there are other synthetic methods of this type of compound,2568-33-4, 3-Methylbutane-1,3-diol, and friends who are interested can also refer to it.

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.2568-33-4, name is 3-Methylbutane-1,3-diol, molecular formula is C5H12O2, molecular weight is 104.1476, as common compound, the synthetic route is as follows.Computed Properties of C5H12O2

To 3-methylbutane-1,3-diol (0.1 g, 0.98 mmol) was added potassium t-butoxide (0.94 mL, 1M in THF) and stirred for 10 minutes. Example 1E (0.2 g, 0.47 mmol) in 1.2 mL of THF was added and the mixture stirred at ambient temperature for 30 minutes. The mixture was diluted with dichloromethane, 20 muL of glacial acetic acid was added and the resulting mixture was filtered, loaded onto silica and chromatographed. (0-20% MeOH in dichloromethane (0.1% NH4OH) over 900 mL) to afford the title compound (70 mg, 0.14 mmol, 29% yield). 1H NMR (300 MHz, CDCl3) delta ppm 1.30 (s, 6H), 1.41 (s, 9H), 1.67-1.92 (m, 3H), 1.94-2.09 (m, 3H), 3.60-3.81 (m, 2H), 3.85 (s, 3H), 4.11-4.23 (m, 1H), 4.23-4.33 (m, 3H), 4.54 (dd, J=15.1, 2.9 Hz, 1H), 6.98 (d, J=8.5 Hz, 1H), 7.01 (s, 1H), 7.53 (dd, J=8.6, 2.2 Hz, 1H), 8.26 (d, J=2.4 Hz, 1H). MS (DCI/NH3) m/z 512.3 (M+H)+. Analytical calculated for C26H36F3N3O4.0.2H2O: C, 60.56; H, 7.13; N, 8.15. Found: C, 60.57; H, 7.25; N, 8.12

At the same time, in my other blogs, there are other synthetic methods of this type of compound,2568-33-4, 3-Methylbutane-1,3-diol, and friends who are interested can also refer to it.

Reference:
Patent; ABBOTT LABORATORIES; US2010/69348; (2010); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts