Hydrogen Bromide → HCID 21186592, compound

HRID 1384324Notes

Reaction equation

[F:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][CH:9]2[CH2:15][CH:14]3[N:16](C(OCC(Cl)(Cl)Cl)=O)[CH:11]([CH2:12][CH2:13]3)[CH2:10]2)=[CH:4][CH:3]=1.Br.[OH-].[Na+]>C(O)(=O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([S:8][CH:9]2[CH2:15][CH:14]3[NH:16][CH:11]([CH2:12][CH2:13]3)[CH2:10]2)=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 110 °C

Procedure

A mixture of 3-(4-fluorophenylsulfanyl)-8-(2,2,2-trichloroethoxycarbonyl)-8-azabicyclo-(3.2.1)-octane (the compound of Preparation 37, 10.28 g, 24.92 mmol), 48% HBr (20 mL), and acetic acid (80 mL) was heated to 110° C. for 78 h. The reaction was adjusted to pH 11 by addition of 4 N sodium hydroxide and extracted with methylene chloride. The organic phase was filtered through Diatomaceous earth, washed with brine, dried over calcium sulfate and concentrated. The residue was kugelrohr distilled (110° C. (pot temperature), 1.5 mm Hg) to give 3.30 g of 3-(4-fluorophenylsulfanyl)-8-azabicyclo-(3.2.1)-octane as a yellow oil which had NMR δ7.41 (dd, J=5.5, 9 Hz, 2 H), 7.00 (long range coupled t, J=8.5 Hz, 2 H), 4.11 (s, impurity), 3.55 (br t, J=3.5 Hz, 2 H), 3.24 (sym m, 1 H), 2.58 (br s, 2 H, exchanges with D2O, should integrate for 1 H), 1.90-1.77 (m, 4 H), 1.70-1.51 (m, 4 H). This product was suitable for use without further purification.

Workup

extractionextracted with methylene chloride
filtrationThe organic phase was filtered through Diatomaceous earth
washwashed with brine
dry with materialdried over calcium sulfate
concentrationconcentrated
distillationdistilled (110° C. (pot temperature), 1.5 mm Hg)

Sources & evidence

ORD record: ord-dbf9ee4d6e074ccdbe68afacd92ac246
Source dataset: uspto-grants-2001_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06258827B1

Reaction notes

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