Acetic Anhydride → N-{[4-(4-[(1-isopropylpiperidin-4-yl)oxy]phenyl)tetrahydro-2H-pyran-4-yl]methyl}-acetamide

HRID 272955Notes

Reaction equation

HRID 272955 reaction equation
[CH:1]([N:4]1[CH2:9][CH2:8][CH:7]([O:10][C:11]2[CH:16]=[CH:15][C:14]([C:17]3([CH2:23][NH2:24])[CH2:22][CH2:21][O:20][CH2:19][CH2:18]3)=[CH:13][CH:12]=2)[CH2:6][CH2:5]1)([CH3:3])[CH3:2].C(N(CC)CC)C.[C:32](OC(=O)C)(=[O:34])[CH3:33]>ClCCl>[CH:1]([N:4]1[CH2:9][CH2:8][CH:7]([O:10][C:11]2[CH:16]=[CH:15][C:14]([C:17]3([CH2:23][NH:24][C:32](=[O:34])[CH3:33])[CH2:18][CH2:19][O:20][CH2:21][CH2:22]3)=[CH:13][CH:12]=2)[CH2:6][CH2:5]1)([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 7918Acetic AnhydrideHCID 8471TriethylamineHCID 68576458(4-{4-[(1-isopropylpiperidin-4-yl)oxy]phenyl}tetrahydro-2H-pyran-4-yl)methylamine

Product 1

HCID 59837494N-{[4-(4-[(1-isopropylpiperidin-4-yl)oxy]phenyl)tetrahydro-2H-pyran-4-yl]methyl}-acetamideYield 72%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of (4-{4-[(1-isopropylpiperidin-4-yl)oxy]phenyl}tetrahydro-2H-pyran-4-yl)methylamine (250 mg, 0.753 mmol) and triethylamine (200 μl. 1.88 mmol) in dichloromethane (2 ml) was added dropwise acetic anhydride (78 μl, 0.828 mmol). Reaction left at ambient temperature until reaction complete. Dichloromethane (10 ml) added to the reaction, the organic phase extracted with saturated NaHCO3 (3×10 ml). Organic washings were dried over Na2SO4 and concentrated in vacuo to give the title compound as an oil (203 mg, 72%). 1H NMR (400 MHz, CDCl3) δ 7.19 (d, 2H), 6.94 (d, 2H), 4.95-5.02 (broad, 1H), 4.24-4.38 (m, 1H), 3.79-3.88 (m, 2H), 3.52-3.64 (m, 2H), 3.45 (d, 2H), 2.70-2.88 (m, 3H), 2.36-2.45 (m, 2H), 1.98-2.10 (m, 4H), 1.78-1.90 (m, 7H), 1.05 (d, 6H).

Workup

  1. customReaction
  2. waitleft at ambient temperature until reaction complete
  3. extractionthe organic phase extracted with saturated NaHCO3 (3×10 ml)
  4. dry with materialOrganic washings were dried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-3be3e4b976294f6f8ddccb418968d080
Source dataset
uspto-grants-2008_11
Patent number
US07456164B2

Reaction notes

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