1,2-Dichloroethane → 11,14-Eicosadienamide

HRID 1895877Notes

Reaction equation

HRID 1895877 reaction equation
[C:1]([OH:22])(=O)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH:11]=[CH:12][CH2:13][CH:14]=[CH:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20].Cl.C[NH:25]OC.C1C=NC2N(O)N=NC=2C=1.CCN(CC)CC.C(Cl)CCl>C(Cl)Cl>[C:1]([NH2:25])(=[O:22])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH:11]=[CH:12][CH2:13][CH:14]=[CH:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20]

Participants

7

Reactant 5

HCID 111,2-DichloroethaneHCID 320811,14-Eicosadienoic acidHCID 8471TriethylamineHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 181649HOAt

Product 1

HCID 5410154411,14-EicosadienamideYield 93%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

11,14-Eicosadienoic acid, (11Z,14Z)— (50 g, 162 mmol), N,O-Dimethylhydroxylamine hydrochloride (31.6 g, 324 mmol), HOAt (44.1 g, 324 mmol), Et3N (45.2 mL, 324 mmol), and EDC (62.1 g, 324 mmol) were mixed in DCM (810 mL) and stirred overnight at ambient temperature. Reaction was then washed 5×700 mL water, then washed 1×600 mL 1 M NaOH, dried with sodium sulfate, filtered through celite and evaporated to obtain 53.06 g (93%) 11,14-eicosadienamide, N-methoxy-N-methyl-, (11Z,14Z) as a clear golden oil. 1H NMR (400 MHz, CDCl3) δ 5.35 (m, 4H), 3.68 (s, 3H), 3.18 (s, 3H), 2.77 (m, 2H), 2.41 (t, J=7 Hz, 2H), 2.05 (m, 4H), 1.63 (m, 2H), 1.40-1.26 (m, 18H), 0.89 (t, J=7 Hz, 3H).

Workup

  1. customReaction
  2. washwas then washed 5×700 mL water
  3. washwashed 1×600 mL 1 M NaOH
  4. dry with materialdried with sodium sulfate
  5. filtrationfiltered through celite
  6. customevaporated

Sources & evidence

ORD record
ord-1abd6aedcf5d444f82e497338ef86241
Source dataset
uspto-grants-2013_08
Patent number
US08518907B2

Reaction notes

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