Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 15572561 | HCID 15572561 | — |
| Product | HCID 13098067 | HCID 13098067 | 82.5% |
Reaction Steps
5 g of 3-(4-butyl-piperazin-1-yl)-1-(xanthene-9-carbonyloxy)-propane dihydrochloride, prepared as described in Example 2, are admixed with 20 ml of an 5% aqueous solution of sodium hydroxide. The alkaline solution is extracted with 3×20 ml of ethyl ether. The etheral extracts are combined, dried over sodium sulfate, filtered, and the filtrate is evaporated. The residue is dissolved in 25 ml of acetone, and 3.5 g of methyl iodide are added to the solution. The reaction mixture is refluxed for 15 minutes and then cooled to 0° C. The crystalline product is filtered off and recrystallized from 30 ml of ethanol. 3.5 g of the title compound are obtained; m.p.: 188°-190° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04140790 |
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| Source dataset | uspto-grants-1979_02 |
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| ORD ID | ord-2c8cbe30c4f54054aa809dcea7f95cb1 |
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| Source note | uspto-grants-1979_02 |
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