Potassium Iodide → HCID 86733456, compound
Reaction equation
[Cl:1][CH2:2][C:3]([C:5]1[CH:18]=[CH:17][C:16]2[O:15][C:14]3[C:9](=[CH:10][C:11]([C:19](=[O:22])[CH2:20]Cl)=[CH:12][CH:13]=3)[CH2:8][C:7]=2[CH:6]=1)=[O:4].[I-].[K+].[CH3:25][NH:26][CH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1>O1CCCC1>[OH2:4].[ClH:1].[ClH:1].[CH3:25][N:26]([CH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1)[CH2:2][C:3]([C:5]1[CH:18]=[CH:17][C:16]2[O:15][C:14]3[C:9](=[CH:10][C:11]([C:19](=[O:22])[CH2:20][N:26]([CH:27]4[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]4)[CH3:25])=[CH:12][CH:13]=3)[CH2:8][C:7]=2[CH:6]=1)=[O:4]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 33.5 g (0.1 mole) of 2,7-bis(2-chloroacetyl)-xanthene, 2 g of potassium iodide, 50.6 g (0.5 mole) of N-methylcyclohexylamine and 500 ml. of tetrahydrofuran was allowed to stand for seven days at room temperature, then filtered. The filtrate was evaporated to dryness, and the residue was cooled, then dissolved in 5% HCl and filtered. The filtrate was made alkaline and the product was extracted with methylene chloride, evaporated to a small volume, cooled, and acidified with ethereal HCl to Congo Red. The solid was filtered off and recrystallized four times from methanol-diethyl ether. After drying in vacuo and hydrating in a constant humidity chamber, the desired product was obtained. M.P. 203°-206°C.
Workup
- filtrationfiltered
- customThe filtrate was evaporated to dryness
- temperaturethe residue was cooled
- dissolutiondissolved in 5% HCl
- filtrationfiltered
- extractionthe product was extracted with methylene chloride
- customevaporated to a small volume
- temperaturecooled
- filtrationThe solid was filtered off
- customrecrystallized four times from methanol-diethyl ether
- customAfter drying in vacuo and hydrating in a constant humidity chamber
Sources & evidence
- ORD record
- ord-a6e2a0905d044e04ada9da55a9025003
- Source dataset
- uspto-grants-1976_05
- Patent number
- US03957989
Reaction notes
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