Aniline → HCID 70590409, compound
Reaction equation
Br[CH2:2][C:3]1([CH3:29])[CH:7]([C:8]([O:10][CH2:11][C:12]([Cl:15])([Cl:14])[Cl:13])=[O:9])[N:6]2[C:16](=[O:28])[CH:17]([NH:18][C:19](=[O:27])[CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[C@H:5]2[S:4]1.[NH2:30][C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1>C(Cl)Cl.F[B-](F)(F)F.[Ag+]>[NH:30]([CH2:2][C:3]1([CH3:29])[CH:7]([C:8]([O:10][CH2:11][C:12]([Cl:15])([Cl:14])[Cl:13])=[O:9])[N:6]2[C:16](=[O:28])[CH:17]([NH:18][C:19](=[O:27])[CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[C@H:5]2[S:4]1)[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1Participants
Conditions
- Temperature
- -10 °C
Procedure
2,2,2-trichloroethyl 2-bromomethyl-2-methyl-6-(2-phenylacetamido)penam-3-carboxylate (1.10 g) dissolved in methylene chloride (15 ml). To this solution was added aniline (0.28 g) under cooling at -10° C and then silver fluoroborate (0.-3 g), after which the mixture was stirred for 2 hours. After the reaction was completed, the reaction mixture was washed with a dilute phosphoric acid aqueous solution and then with water, dried over magnesium sulfate, after which the solvent was distilled off. The residue was subjected to column chromatography at silica gel (20 g) and eluted with chloroform. The eluate was separated into fractions of each about 20 ml. The second to seventh fractions were collected and the solvent was distilled off to give 2,2,2-trichloroethyl 2-anilinomethyl-2-methyl-6-(2-phenylacetamido)-penam-3-carboxylate (0.8- g), mp 148° to 149° C.
Workup
- washthe reaction mixture was washed with a dilute phosphoric acid aqueous solution
- dry with materialwith water, dried over magnesium sulfate
- distillationafter which the solvent was distilled off
- washeluted with chloroform
- customThe eluate was separated into fractions of each about 20 ml
- customThe second to seventh fractions were collected
- distillationthe solvent was distilled off
Sources & evidence
- ORD record
- ord-5c31e973fb4045308ae63a8b9d10a8cb
- Source dataset
- uspto-grants-1977_11
- Patent number
- US04056521
Reaction notes
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