Methylamine → HCID 23594251, compound
Reaction equation
[CH3:1][O:2][C:3](=[O:13])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11]Br)=[CH:7][CH:6]=1.CN.[CH2:16]([N:18](CC)CC)C>O1CCCC1>[CH3:1][O:2][C:3](=[O:13])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][NH:18][CH3:16])=[CH:7][CH:6]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a stirring solution of 15 in tetrahydrofuran (0.4 M) at room temperature under nitrogen was added methylamine (7.5 eq) and triethylamine (12.0 eq). The reaction was stirred at room temperature overnight. The tetrahydrofuran was removed under reduced pressure and the resulting oil was diluted with H2O. The aqueous layer was acidified with 6N hydrochloric acid, extracted with ethyl acetate (3×), made basic with saturated sodium bicarbonate and extracted with dichloromethane (3×). The dichloromethane was dried over sodium sulfate, filtered and concentrated in vacuo to afford the product. (66%) 1H NMR (400 MHz, CDCl3) δ 7.31 (d, 2H), 7.25 (d, 2H), 3.77 (s, 2H), 3.69 (s, 3H), 3.62 (s, 2H), 2.45 (s, 3H).
Workup
- customThe tetrahydrofuran was removed under reduced pressure
- additionthe resulting oil was diluted with H2O
- extractionextracted with ethyl acetate (3×)
- extractionextracted with dichloromethane (3×)
- dry with materialThe dichloromethane was dried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo
- customto afford the product
Sources & evidence
- ORD record
- ord-c071190051cc4e09aa2bdb0f7aa21a38
- Source dataset
- uspto-grants-2006_01
- Patent number
- US06992193B2
Reaction notes
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