Benzene, 1-(chloromethyl)-2-fluoro- → N-(2-fluorophenylmethyl)-3-hydroxy-N-methyl-3-phenylpropylamine

A mixture of 3-hydroxy-N-methyl-3-phenylpropylamine (8.3 g, 50 mM), 2,2,6,6-tetramethylpiperidine (8.4 ml, 50 mM), o-fluorobenzyl chloride (7.25 g, 50 mM) and acetonitrile (100 ml) was stirred for 24 hours at ambient temperature. The resulting precipitate was removed by filtration, the precipitate washed with acetonitrile and the combined filtrate and washings evaporated under reduced pressure. The residue was partitioned between 2 N hydrochloric acid (100 ml) and ether (100 ml), the aqueous layer basified and extracted with ether (2×100 ml). The ether extract was dried and the solvent removed under reduced pressure to yield an oil (10.3 g). Distillation gave the title compound b.p. 160°-2° C./0.6 mbar. Found: C, 74.4; H, 7.3; N, 5.4%; C17H20FNO requires: C, 74.7; H, 7.4; N, 5.1%.

1. customThe resulting precipitate was removed by filtration
2. washthe precipitate washed with acetonitrile
3. customthe combined filtrate and washings evaporated under reduced pressure
4. customThe residue was partitioned between 2 N hydrochloric acid (100 ml) and ether (100 ml)
5. extractionextracted with ether (2×100 ml)
6. extractionThe ether extract
7. customwas dried
8. customthe solvent removed under reduced pressure

ORD record

ord-189f0688608445a68a3bc023e40c4049

Source dataset

uspto-grants-1982_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04318909