Piperidine → HCID 22054123, compound

HRID 1830225Notes

Reaction equation

HRID 1830225 reaction equation
[NH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.C(N=C=NCCCN(C)C)C.[CH3:19][O:20][C:21]1[C:22]([CH3:51])=[C:23]([C:42]([O:49][CH3:50])=[C:43]([O:47][CH3:48])[C:44]=1[O:45][CH3:46])[CH2:24][C:25]1[CH:26]=[CH:27][C:28]([O:34][CH2:35][C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)=[C:29]([CH:33]=1)[C:30](O)=[O:31]>C(Cl)Cl>[CH3:19][O:20][C:21]1[C:22]([CH3:51])=[C:23]([C:42]([O:49][CH3:50])=[C:43]([O:47][CH3:48])[C:44]=1[O:45][CH3:46])[CH2:24][C:25]1[CH:26]=[CH:27][C:28]([O:34][CH2:35][C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)=[C:29]([CH:33]=1)[C:30]([N:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1)=[O:31]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 21919197HCID 21919197, compound

Product 1

HCID 22054123HCID 22054123, compoundYield 99.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Piperidine (0.358 g, 4.20 mmol) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.21 g, 6.30 mmol) were added to a methylene chloride solution (50 ml) of 5-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-benzyloxybenzoic acid (0.95 g, 2.10 mmol) and the resulting solution was stirred at room temperature for 12 hours. The reaction solution was poured into ice water and then extracted with methylene chloride. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by silica gel column chromatography (chloroform:methanol=50:1) to obtain the titled compound (1.02 g, 2.09 mmol, 99%).

Workup

  1. extractionextracted with methylene chloride
  2. washThe extract was washed with water
  3. customdried
  4. customthe solvent was removed by distillation
  5. customThe obtained residue was purified by silica gel column chromatography (chloroform:methanol=50:1)

Sources & evidence

ORD record
ord-5ea45f3a950947ba9d81516c6585e378
Source dataset
uspto-grants-2006_06
Patent number
US07064124B2

Reaction notes

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