Chloroform → HCID 86634951, compound
Reaction equation
[OH:1][CH2:2][N:3]1[C:7](=[O:8])[CH2:6][N:5]([CH2:9][C:10]#[CH:11])[C:4]1=[O:12].[CH2:13]([O:15][N:16]=[CH:17]/[C:18](/[CH3:28])=[CH:19]/[C@@H:20]1[C@@H:22]([C:23](O)=[O:24])[C:21]1([CH3:27])[CH3:26])[CH3:14].C(Cl)(Cl)Cl.Cl.C(N=C=NCCCN(C)C)C>CN(C)C1C=CN=CC=1.[Cl-].[Na+].O>[CH2:13]([O:15][N:16]=[CH:17]/[C:18](/[CH3:28])=[CH:19]/[C@@H:20]1[C@@H:22]([C:23]([O:1][CH2:2][N:3]2[C:7](=[O:8])[CH2:6][N:5]([CH2:9][C:10]#[CH:11])[C:4]2=[O:12])=[O:24])[C:21]1([CH3:27])[CH3:26])[CH3:14]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
Under nitrogen atmosphere, to a mixture of 0.44 g of 3-hydroxymethyl-1-(2-propynyl)imidazolidine-2,4-dione, 0.58 g of (1R)-trans-3-[(E)-3-ethoxyimino-2-methyl-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid, catalytic amount of 4-dimethylaminopyridine and 5 ml of anhydrous chloroform was added 0.50 g of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride and the mixture was stirred at room temperature overnight. Thereafter, saturated brine was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate, then, filtrated, and the filtrate was concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to obtain 0.34 g of 2,5-dioxo-3-(2-propynyl)imidazolidin-1-ylmethyl (1R)-trans-3-[(E)-3-ethoxyimino-2-methyl-1-propenyl]-2,2-dimethylcyclopropanecarboxylate (hereinafter, referred to as the present compound (2)) represented by the formula (2):
Workup
- extractionthe mixture was extracted with ethyl acetate
- washThe organic layer was washed with saturated brine
- dry with materialdried over anhydrous magnesium sulfate
- filtrationfiltrated
- concentrationthe filtrate was concentrated under reduced pressure
Sources & evidence
- ORD record
- ord-fb1c9ae24bbe485f8ecf931a9429ab12
- Source dataset
- uspto-grants-2011_10
- Patent number
- US08039499B2
Reaction notes
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