Acetone → HCID 131725941, compound

Bromotrimethylsilane (0.34 mL, 2.58 mmol) was added dropwise to ((n-heptadecyl)-2-propoxyphosphinyl) methylphosphonic acid di-2-propoxy ester (0.150 g, 0.286 mmol) in a 3 mL vial. The resulting solution was stirred for 14–16 hours at ambient temperature. Excess bromotrimethylsilane was then removed by passing a steady stream of dry nitrogen over the solution for 2 hours. The solution was then placed under high vacuum for 3 hours to remove any residual bromotrimethylsilane. Tributylamine (0.24 g, 1.29 mmol) and methanol (2 mL) were then added to the vial resulting in a clear solution. This solution was then added dropwise to a 0.5 M solution of NaI in acetone (5.0 mL, 2.5 mmol). A white precipitated immediately appeared. The solid was collected by centrifugation and the acetone solution was discarded. The solid was then washed by suspension in clean acetone (20 mL), centrifugation and removal of acetone supernatant. After this washing procedure was completed 3 times, the solid was placed under vacuum for a period of 12–16 hours providing the desired product (0.113 g, 85% yield). 1H NMR (400 MHz D2O): δ 1.7 (m, 2H), 1.3 (m, 4H), 1.1 (m, 28H), 0.7 (t, 3H).

1. customExcess bromotrimethylsilane was then removed
2. customfor 2 hours
3. customto remove any residual bromotrimethylsilane
4. customvial resulting in a clear solution
5. customA white precipitated immediately
6. customThe solid was collected by centrifugation
7. washThe solid was then washed by suspension in clean acetone (20 mL)
8. customcentrifugation and removal of acetone supernatant
9. waitthe solid was placed under vacuum for a period of 12–16 hours

ORD record

ord-b38c10c98b9b4cbdb581d22d265c53ea

Source dataset

uspto-grants-2006_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07109184B2