Triethylamine → 1-[[[4-(Chloromethyl)phenyl]carbonyl]amino]cyclohexanecarboxylic acid methyl ester

HRID 448763

Reaction equation

HRID 448763 reaction equation
Cl.C(N=C=NCCCN(C)C)C.[Cl:13][CH2:14][C:15]1[CH:23]=[CH:22][C:18]([C:19]([OH:21])=O)=[CH:17][CH:16]=1.Cl.[CH3:25][O:26][C:27]([C:29]1([NH2:35])[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]1)=[O:28].C(N(CC)CC)C.ON1C2C=CC=CC=2N=N1>C(Cl)Cl>[CH3:25][O:26][C:27]([C:29]1([NH:35][C:19]([C:18]2[CH:17]=[CH:16][C:15]([CH2:14][Cl:13])=[CH:23][CH:22]=2)=[O:21])[CH2:30][CH2:31][CH2:32][CH2:33][CH2:34]1)=[O:28]

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 742344-(Chloromethyl)benzoic acidHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 22645079Methyl 1-aminocyclohexane-1-carboxylate hydrochloride

Product 1

HCID 576728591-[[[4-(Chloromethyl)phenyl]carbonyl]amino]cyclohexanecarboxylic acid methyl esterYield 53%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Under ice-cooling, 9.96 g (52 mmol) of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride was added to a solution of 8.8 g (52 mmol) of 4-(chloromethyl)benzoic acid, 10 g (52 mmol) of 1-aminocyclohexanecarboxylic acid methyl ester hydrochloride, 15 g (152 mmol) of triethylamine and 8.63 g (56 mmol) of 1-hydroxybenzotriazole in methylene chloride. After the mixture was stirred at room temperature overnight, the reaction solvent was distilled off under reduced pressure. Water was added to the residue, and the mixture was extracted with ethyl acetate twice. The obtained organic layer was washed with a 10% aqueous potassium hydrogensulfate solution, a saturated aqueous sodium hydrogencarbonate solution and then saturated brine, and it was dried with anhydrous sodium sulfate. The obtained residue was purified by silica gel column chromatography to obtain 8.5 g (53%) of the title compound.

Workup

  1. temperatureUnder ice-cooling
  2. distillationthe reaction solvent was distilled off under reduced pressure
  3. additionWater was added to the residue
  4. extractionthe mixture was extracted with ethyl acetate twice
  5. washThe obtained organic layer was washed with a 10% aqueous potassium hydrogensulfate solution
  6. dry with materiala saturated aqueous sodium hydrogencarbonate solution and then saturated brine, and it was dried with anhydrous sodium sulfate
  7. customThe obtained residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-c4240a28bfaf42e68d580a844922a28b
Source dataset
uspto-grants-2013_07
Patent number
US08481725B2

Linked notes

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