Acetone → HCID 22609181, compound

To a 100 mL flask containing diethanolamine (19,2 mL, 200 mmol) was added acetone (29,4 mL, 400 mmol, 2 eq.) and potassium carbonate (pulverised and dried at 160° C., 27,6 g, 200 mmol, 1 eq.). The reaction was stirred at room temperature for one day. The mixture was filtered through a sinter funnel (no. 3) and the collected solid was washed with acetone. The filtrate and the washes were combined and the solvent evaporated. The 1H NMR indicated a conversion of 85%. Distillation at 125-132 ° C./20 mmHg of the crude reaction gave the title product (20,89 g, 72% yield) as a colourless oil. 1H NMR (CDCl3, 400 MHz) d?(ppm): 3,93 (t, J=6,6 Hz, 2H); 3,62 (t, J=5,3 Hz, 2H); 2,96 (t, J=6,6 Hz, 2H); 2,65 (t, J=5,3 Hz, 2H); 1,23 (s, 6H). 13C NMR (CDCl3, 129,9 MHz) d??(ppm): 94,2; 63,5; 59,3; 50,8; 49,1; 23,3 (2C).

1. filtrationThe mixture was filtered through a sinter funnel (no
2. wash3) and the collected solid was washed with acetone
3. customthe solvent evaporated
4. distillationDistillation at 125-132 ° C./20 mmHg of the crude
5. customreaction

ORD record

ord-402cb0c0704b421baf20729e8febad04

Source dataset

uspto-grants-2012_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08093398B2