Triethylamine → 3-(3-Chloropropylsulfonylamino)-2-methoxy-1-octadecylcarbamoyloxypropane

HRID 728417Notes

Reaction equation

HRID 728417 reaction equation
[CH3:1][O:2][CH:3]([CH2:6][O:7][C:8](=[O:28])[NH:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:4][NH2:5].C(N(CC)CC)C.[Cl:36][CH2:37][CH2:38][CH2:39][S:40](Cl)(=[O:42])=[O:41]>ClCCl>[Cl:36][CH2:37][CH2:38][CH2:39][S:40]([NH:5][CH2:4][CH:3]([O:2][CH3:1])[CH2:6][O:7][C:8](=[O:28])[NH:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])(=[O:42])=[O:41]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 154103-Chloropropanesulphonyl chlorideHCID 149922622-Methoxy-3-octadecylcarbamoyloxypropylamine

Product 1

HCID 148350183-(3-Chloropropylsulfonylamino)-2-methoxy-1-octadecylcarbamoyloxypropaneYield 85%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent3×

Procedure

To a solution of 1.2 g (3 mM) of 2-methoxy-3-octadecylcarbamoyloxypropylamine IVa1 (described in JP Kokai No. 60-243047) in 24 ml of dichloromethane and 0.54 ml (3.9 mM) of triethylamine is added 0.401 ml (3.3 mM) of 3-chloropropanesulfonyl chloride with ice-cooling and the mixture is stirred at room temperature overnight. The product is isolated by dichloromethane extraction and dichloromethane layer is washed with saturated aqueous sodium hydrogencarbonate and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and evaporated. The residue is purified by the column chromatography on silica gel with a n-hexane-ethyl acetate (3:2) mixture as an eluent. The product is recrystallized from chloroform-n-hexane mixture to give 1.386 g (2.56 mM) of 3-(3-chloropropylsulfonylamino)-2-methoxy-1-octadecylcarbamoyloxypropane IIIa1 as colorless crystals in 85% yield.

Workup

  1. temperaturecooling
  2. washis washed with saturated aqueous sodium hydrogencarbonate and saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customevaporated
  5. customThe residue is purified by the column chromatography on silica gel with a n-hexane-ethyl acetate (3:2) mixture as an eluent
  6. customThe product is recrystallized from chloroform-n-hexane mixture

Sources & evidence

ORD record
ord-6e3076a5707e4d9d857c1475b51acc62
Source dataset
uspto-grants-1991_09
Patent number
US05047540

Reaction notes

Loading…