Potassium Iodide → HCID 19913858, compound
Reaction equation
Cl[CH2:2][C:3]1[CH:20]=[CH:19][C:6]([O:7][CH2:8][C:9]2[CH:18]=[CH:17][C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]=2)=[CH:5][CH:4]=1.[C:21]([C:27]1[O:28][C:29]2[CH:37]=[CH:36][C:35]([Cl:38])=[C:34]([OH:39])[C:30]=2[C:31](=[O:33])[CH:32]=1)([O:23][CH2:24][CH2:25][CH3:26])=[O:22].[I-].[K+]>CC(C)=O.CN(C)C=O>[C:21]([C:27]1[O:28][C:29]2[CH:37]=[CH:36][C:35]([Cl:38])=[C:34]([O:39][CH2:2][C:3]3[CH:20]=[CH:19][C:6]([O:7][CH2:8][C:9]4[CH:18]=[CH:17][C:16]5[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=5)[N:10]=4)=[CH:5][CH:4]=3)[C:30]=2[C:31](=[O:33])[CH:32]=1)([O:23][CH2:24][CH2:25][CH3:26])=[O:22]Participants
6
Procedure
0.78 g of 2-(4-chloromethylphenoxy)methylquinoline, 0.76 g of 2-carbopropoxy-6-chloro-5-hydroxy-4-oxo-4H-1-benzopyran and a catalytic amount of potassium iodide are combined in 50 ml of acetone and 2 ml of dimethylformamide, and refluxed for 19 hours. The crude solid obtained on cooling is purified by flash chromatography to give 2-carbopropoxy-6-chloro-5-(4-(quinolin-2-ylmethoxy)benzyloxy) 4-oxo-4H-1-benzopyran having an m.p. of 173°-74° C.
Workup
- customThe crude solid obtained
- temperatureon cooling
- customis purified by flash chromatography
Sources & evidence
- ORD record
- ord-45ebf63c475c4eb680b5b89e419100eb
- Source dataset
- uspto-grants-1992_01
- Patent number
- US05082849
Reaction notes
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