Acetyl chloride → 1-tert-butyl 2-methyl (1S,2S,4R)-4-[(1-acetylpiperidin-4-yl)oxy]cyclohexane-1,2-dicarboxylate

HRID 1726701Notes

Reaction equation

HRID 1726701 reaction equation
[C:1](Cl)(=[O:3])[CH3:2].Cl.[NH:6]1[CH2:11][CH2:10][CH:9]([O:12][C@@H:13]2[CH2:18][CH2:17][C@H:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[C@@H:15]([C:26]([O:28][CH3:29])=[O:27])[CH2:14]2)[CH2:8][CH2:7]1.CN1CCOCC1>C(#N)C>[C:1]([N:6]1[CH2:11][CH2:10][CH:9]([O:12][C@@H:13]2[CH2:18][CH2:17][C@H:16]([C:19]([O:21][C:22]([CH3:23])([CH3:24])[CH3:25])=[O:20])[C@@H:15]([C:26]([O:28][CH3:29])=[O:27])[CH2:14]2)[CH2:8][CH2:7]1)(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 79724-MethylmorpholineHCID 866214931-tert-butyl 2-methyl(1S,2S,4R)-4-(piperidin-4-yloxy)cyclohexane-1,2-dicarboxylate hydrochloride

Product 1

HCID 865982671-tert-butyl 2-methyl (1S,2S,4R)-4-[(1-acetylpiperidin-4-yl)oxy]cyclohexane-1,2-dicarboxylate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent2×

Procedure

A solution of acetyl chloride (24 uL, 0.00033. mol) in 0.5 ml of ACN was added to a solution of 1-tert-butyl 2-methyl(1S,2S,4R)-4-(piperidin-4-yloxy)cyclohexane-1,2-dicarboxylate hydrochloride made above (50 mg, 0.0001 mol) and 4-methylmorpholine (44 uL, 0.00040 mol) in acetonitrile (1.5 mL, 0.029 mol) at 22 Celsius. It was stirred at rt for 30 min, then quenched with Water, extracted with EA, and concentrated to give 1-tert-butyl 2-methyl (1S,2S,4R)-4-[(1-acetylpiperidin-4-yl)oxy]cyclohexane-1,2-dicarboxylate.

Workup

  1. customquenched with Water
  2. extractionextracted with EA
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-159dc03305244a69846e22471c97ed8b
Source dataset
uspto-grants-2009_02
Patent number
US07491724B2

Reaction notes

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