1,2-Dichloroethane → HCID 16617197, compound

HRID 456426

Reaction equation

HRID 456426 reaction equation
[C:1]1([CH:7]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:8][C:9]([OH:11])=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:18]([N:25]1[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]1)([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19].C(Cl)CCl>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:21]([O:20][C:18]([N:25]1[CH2:30][CH2:29][N:28]([C:9](=[O:11])[CH2:8][CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:27][CH2:26]1)=[O:19])([CH3:24])([CH3:22])[CH3:23]

Participants

6

Reactant 3

HCID 111,2-DichloroethaneHCID 64798Diphenylpropionic acidHCID 143452tert-Butyl piperazine-1-carboxylate

Product 1

HCID 16617197HCID 16617197, compoundYield 76%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 3,3 diphenylpropionic acid (1.45 g, 6.44 mmol) in dry CH2Cl2 (70 ml) was added mono-boc piperizine (1.32 g, 7.08 mmol) under nitrogen. To the reaction was added EDC (2.71 g, 14.16 mmol) and DMAP (cat) and the reaction mixture stirred under nitrogen at room temperature overnight. The reaction was then concentrated under reduced pressure. The residue dissolved in ethyl acetate:water (10:1) (200 ml). The organic was washed with water (50 ml, 2×) and 10% NaOH (50 ml) and dried over MgSO4 and evaporated to dryness. The resulting residue was purified by column chromatography using hexane:ethyl acetate (1:1) to give desired product in 76% yield.

Workup

  1. concentrationThe reaction was then concentrated under reduced pressure
  2. dissolutionThe residue dissolved in ethyl acetate:water (10:1) (200 ml)
  3. washThe organic was washed with water (50 ml, 2×) and 10% NaOH (50 ml)
  4. dry with materialdried over MgSO4
  5. customevaporated to dryness
  6. customThe resulting residue was purified by column chromatography

Sources & evidence

ORD record
ord-ee02d08eb79742d4a63b30f30e66855e
Source dataset
uspto-grants-2007_03
Patent number
US07186726B2

Linked notes

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