Sodium cyanoborohydride → HCID 86699878, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of crude 6-fluoro-6,7,8,9-tetrahydrobenzocylohepten-5-one-O-methyl-oxime E/Z-mixture (1.23 g; 5.95 mmol) prepared as described in example P2a in acetic acid (12 ml) was added portion wise sodium cyanoborohydride 95% (0.75 g; 11.9 mmol) at 15° C. The mixture was stirred for 6 hours at 23° C. Most of acetic acid was removed under reduced pressure. The residue was poured in 2N NaOH (50 ml) and was extracted with ethylacetate (3×30 ml). Combined organics were dried over sodium sulfate and solvent was removed in vacuo. The crude (1.45 g) was subject to flash chromatography (eluant: c-hexane/ethyl acetate 100:0 to 0:100) to afford 0.645 g (52% of theory) of N-(6-fluoro-6,7,8,9-tetrahydro-5-H-benzocyclohepten-5-yl)-O-methyl-hydroxylamine as a yellow oil.

Provenance & Evidence