Formaldehyde → Benzyl(methoxymethyl)((trimethylsilyl)methyl)amine

Temperatur

0 °C

Into a round bottom 3-neck flask equipped with a nitrogen flow and a magnetic stirrer was added formaldehyde (74.000 mmol, 7.4000×10−2 mol) (as a 37% aqueous solution). The flask was cooled to 0° C. and N-benzyl-N-(trimethylsilyl)methylamine (10.000 g, 5.1716790×10−2 mol) was added dropwise with stirring. After stirring for 10 minutes at 0° C., methanol (6.000 mL, 0.14811874 mol) was added in one portion. Potassium carbonate (4.000 g, 2.8942408×10−2 mol) was added to the mixture to absorb the aqueous phase. The mixture was stirred for one hour, then the nonaqueous phase decanted, and then potassium carbonate (2.000 g, 1.4471204×10−2 mol) was added. The mixture was stirred at 25° C. for 12 hours. Ether is added to the mixture and the solution was dried over potassium carbonate, filterd and concentrated under reduced pressure. The residue is distilled at reduced pressure to give the product as a colorless liquid.

1. customInto a round bottom 3-neck flask equipped with a nitrogen flow and a magnetic stirrer
2. stirringAfter stirring for 10 minutes at 0° C.
3. customto absorb the aqueous phase
4. stirringThe mixture was stirred for one hour
5. customthe nonaqueous phase decanted
6. stirringThe mixture was stirred at 25° C. for 12 hours
7. dry with materialthe solution was dried over potassium carbonate, filterd
8. concentrationconcentrated under reduced pressure
9. distillationThe residue is distilled at reduced pressure

ORD-Eintrag

ord-683da8e533844a2c94ea096ae7f14482

Quelldatensatz

uspto-grants-2011_11

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08058288B2