HCID 90418967, compound → HCID 90419025, compound

HRID 2202386Notes

Reaction equation

HRID 2202386 reaction equation
[F:1][CH:2]([F:19])[C:3]#[C:4][C:5]1([OH:18])[CH2:10][CH2:9][N:8]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:7][CH2:6]1>C1COCC1.[Pd]>[F:19][CH:2]([F:1])[CH2:3][CH2:4][C:5]1([OH:18])[CH2:10][CH2:9][N:8]([C:11]([O:13][C:14]([CH3:15])([CH3:16])[CH3:17])=[O:12])[CH2:7][CH2:6]1

Participants

4

Reactant 1

HCID 90418967HCID 90418967, compound

Product 1

HCID 90419025HCID 90419025, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A solution of tert-butyl 4-(3,3-difluoroprop-1-yn-1-yl)-4-hydroxypiperidine-1-carboxylate (350 mg, 1.273 mmol) in 30 mL of anhydrous THF was stirred with Pd/C (200 mg) under H2 atmosphere at 15 psi at 48° C. for 8 h. The reaction mixture was cooled to r.t. and filtered, and the resulting mixture was concentrated in vacuo to afforde 293 mg of title compound. 1H NMR (CHLOROFORM-d) δ: 5.89 (tt, J=56.9, 4.3 Hz, 1H), 3.84 (dd, J=9.8, 3.5 Hz, 2H), 3.24-3.10 (m, 2H), 2.05-1.89 (m, 2H), 1.67-1.60 (m, 2H), 1.55 (m, 4H), 1.47 (s, 9H).

Workup

  1. filtrationfiltered
  2. concentrationthe resulting mixture was concentrated in vacuo

Sources & evidence

ORD record
ord-2ec25c3ce585421c97d0c5e330d8343b
Source dataset
uspto-grants-2016_06
Patent number
US09365545B2

Reaction notes

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