Triethylamine → HCID 53792562, compound

HRID 1954806Notes

Reaction equation

HRID 1954806 reaction equation
[CH2:1]([C:8]1[CH:16]=[CH:15][C:11]([C:12]([OH:14])=O)=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:17][C@@H:18]1[CH2:27][CH2:26][C:25]2[C:20](=[C:21]([N:28]3[CH2:33][CH2:32][N:31]([CH3:34])[CH2:30][CH2:29]3)[CH:22]=[CH:23][CH:24]=2)[CH2:19]1.C(N(CC)CC)C>S(Cl)(Cl)=O.C(Cl)Cl>[CH3:34][N:31]1[CH2:32][CH2:33][N:28]([C:21]2[CH:22]=[CH:23][CH:24]=[C:25]3[C:20]=2[CH2:19][C@H:18]([NH:17][C:12](=[O:14])[C:11]2[CH:10]=[CH:9][C:8]([CH2:1][C:2]4[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=4)=[CH:16][CH:15]=2)[CH2:27][CH2:26]3)[CH2:29][CH2:30]1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 1364294-Benzylbenzoic acidHCID 53960413(R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene

Product 1

HCID 53792562HCID 53792562, compound

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 24386Thionyl ChlorideSolvent

Procedure

4-Benzylbenzoic acid (0.50 g, 2.4 mmol) was dissolved in thionyl chloride (10 mL) and heated at reflux for 20 min. The excess of thionyl chloride was evaporated in vacuo, the residue was treated with toluene and again the solvent was removed in vacuo. Crude acid chloride (100 mg, 0.46 mmol) was dissolved in methylene chloride (5 mL) and added dropwise to an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (10 mg, 0.44 mmol) and triethylamine (90 μL, 0.65 mmol) in methylene chloride (25 mL). After the addition, the reaction was allowed to stir at ambient temperature for 15 min and was then washed with dilute aqueous sodium hydrogen carbonate. The phases were separated and the organic phase was dried (Na2SO4), filtered and evaporated in vacuo to give a crude product which was purified on a silica gel column using chloroform/ethanol saturated with NH3 (100:3) as the eluent. Yield: 130 mg (62%) of the title compound as white crystals: mp 191-192° C.; [α]21D -39° (c 1.0, chloroform); EIMS (70 eV) m/z (relative intensity) 439 (28, M+).

Workup

  1. temperatureheated
  2. temperatureat reflux for 20 min
  3. customThe excess of thionyl chloride was evaporated in vacuo
  4. additionthe residue was treated with toluene
  5. customagain the solvent was removed in vacuo
  6. additionAfter the addition
  7. washwas then washed with dilute aqueous sodium hydrogen carbonate
  8. customThe phases were separated
  9. dry with materialthe organic phase was dried (Na2SO4)
  10. filtrationfiltered
  11. customevaporated in vacuo

Sources & evidence

ORD record
ord-7ec5bf153e33475a82e3922cc7ef7563
Source dataset
uspto-grants-2000_09
Patent number
US06124283

Reaction notes

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