Chloroacetyl chloride → N-Benzyl-2-chloroacetamide

A solution of chloroacetyl chloride (11.4 mL) was added drop-wise over 1 hour to a stirred solution of benzylamine (15 mL) and TEA (23 mL) in dry TFP (200 mL) previously cooled at 0–3° C. under a Nitrogen atmosphere. The dark suspension was allowed to warm gradually to r.t. and then stirred at r.t. for 3 hours. The inorganic salts were filtered and washed with AcOEt (300 mL). The filtrate was washed with 2N hydrochloric acid solution (2×250 mL), sodium hydrogen carbonate (2×200 mL) and water (200 mL). The organic layer was dried and concentrated in vacuo to give a dark solid, which was crystallized from Et2O/CH (1:1, 700 mL) to give N-benzyl-2-chloroacetamide (17.8 g) as a grey solid (T.l.c.: AcOEt 100%, Rf=0.47).

1. temperaturepreviously cooled at 0–3° C. under a Nitrogen atmosphere
2. filtrationThe inorganic salts were filtered
3. washwashed with AcOEt (300 mL)
4. washThe filtrate was washed with 2N hydrochloric acid solution (2×250 mL), sodium hydrogen carbonate (2×200 mL) and water (200 mL)
5. customThe organic layer was dried
6. concentrationconcentrated in vacuo
7. customto give a dark solid, which
8. customwas crystallized from Et2O/CH (1:1, 700 mL)

ORD record

ord-0e4b7cc674294835aa823532dcf5b870

Source dataset

uspto-grants-2007_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07214680B2