1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 22013909, compound

HRID 2416945Notes

Reaction equation

HRID 2416945 reaction equation
CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.[CH:22]([C:25]1[CH:31]=[CH:30][CH:29]=[C:28]([CH:32]([CH3:34])[CH3:33])[C:26]=1[NH2:27])([CH3:24])[CH3:23].[Br:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][C:43](O)=[O:44]>CN(C=O)C>[Br:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][C:43]([NH:27][C:26]1[C:25]([CH:22]([CH3:24])[CH3:23])=[CH:31][CH:30]=[CH:29][C:28]=1[CH:32]([CH3:34])[CH3:33])=[O:44]

Participants

6

Reactant 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 32484DiisopropylanilineHCID 757711-HydroxybenzotriazoleHCID 5482758-Bromooctanoic acid

Product 1

HCID 22013909HCID 22013909, compoundYield 38%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

WSC (1.05 g 5.5 mmols) and HOBt (743 mg, 5.5 mmols) were added to a DMF (15 ml) solution of 2,6-diisopropylaniline (886 mg, 5 mmols) and 8-bromooctanoic acid (1.67 g, 7.5 mmols), and stirred at room temperature for 12 hours. The reaction mixture was extracted with ether. The organic layer was washed with water, 1 N HCl, an aqueous saturated solution of sodium hydrogencarbonate and saturated saline in that order, and dried with anhydrous magnesium sulfate, and the solvent was evaporated. Then, the residue was purified through silica gel column chromatography (developer:hexane/acetone=5/1), and the resulting crystals were recrystallized from other-hexane to obtain 720 mg (yield: 38%) of 8-bromo-N-(2,6-diisopropylphenyl) octanamide as colorless needle-like crystals.

Workup

  1. extractionThe reaction mixture was extracted with ether
  2. washThe organic layer was washed with water, 1 N HCl
  3. dry with materialan aqueous saturated solution of sodium hydrogencarbonate and saturated saline in that order, and dried with anhydrous magnesium sulfate
  4. customthe solvent was evaporated
  5. customThen, the residue was purified through silica gel column chromatography (developer:hexane/acetone=5/1)
  6. customthe resulting crystals were recrystallized from other-hexane

Sources & evidence

ORD record
ord-bfa327d10ec84fde9be1e5bc002bda92
Source dataset
uspto-grants-2004_11
Patent number
US06825223B2

Reaction notes

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