Chloroacetyl chloride → N-[1-(6-Bromo-pyridin-2-yl)-2-methoxymethoxy-1-methoxymethoxymethyl-ethyl]-2-chloro-acetamide
Reaction equation
[Br:1][C:2]1[N:7]=[C:6]([C:8]([NH2:19])([CH2:14][O:15][CH2:16][O:17][CH3:18])[CH2:9][O:10][CH2:11][O:12][CH3:13])[CH:5]=[CH:4][CH:3]=1.C([O-])([O-])=O.[Na+].[Na+].[Cl:26][CH2:27][C:28](Cl)=[O:29]>C(Cl)Cl>[Br:1][C:2]1[N:7]=[C:6]([C:8]([NH:19][C:28](=[O:29])[CH2:27][Cl:26])([CH2:9][O:10][CH2:11][O:12][CH3:13])[CH2:14][O:15][CH2:16][O:17][CH3:18])[CH:5]=[CH:4][CH:3]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 1-(6-bromo-pyridin-2-yl)-2-methoxymethoxy-1-methoxymethoxymethyl-ethylamine (15.0 g, 44.75 mmol) in DCM (150 ml) was added aqueous Na2CO3 solution (10.91 g, 102.925 mmmol in water, 30 ml) was added at 0° C. and stirred for 10 min. Chloroacetylchloride (5.56 g, 49.225 mmol) was added to the resultant reaction mixture at 0° C. stirring continued for 1 h at ambient temperature. Reaction mixture was diluted with DCM (˜1 l), and worked up the reaction mixture by washing with water, brine and dried over anhy. Na2SO4. Organic layer was separated and concentrated under reduced pressure to obtain title compound as a brown liquid. Yield=9.0 g (48%). TLC (50% ethyl acetate in hexane) Rf=0.54; LCMS: RtH7=1.341, [M+1]=411.0 and 413.0; HPLC: RtH9=4.27 min (50.4%); 1H NMR (400 MHz, CDCl3): δ 8.11 (d, 1H), 7.57-7.52 (m, 1H), 7.46-7.37 (m, 2H), 4.59-4.52 (m, 4H), 4.23-4.17 (m, 4H), 4.09-4.04 (m, 2H), 3.21 (s, 6H).
Workup
- additionwas added at 0° C.
- customreaction mixture at 0° C.
- stirringstirring
- waitcontinued for 1 h at ambient temperature
- customReaction mixture
- washby washing with water, brine
- customdried over anhy
- customOrganic layer was separated
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-9142c04097fb44aa83b03cea94b2d0e0
- Source dataset
- uspto-grants-2014_10
- Patent number
- US08865712B2
Reaction notes
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