Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Iodide | HCID 4875 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | HCID 10540475 | HCID 10540475 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 10665070 | HCID 10665070 | 88.8% |
Reaction Steps
2 g of anhydrous potassium carbonate are added to a solution of 2 g of the product of Step A in 50 ml of anhydrous dimethylformamide, under an inert atmosphere. After stirring for 15 minutes at 65° C., 2.4 g of anhydrous potassium iodide and 4.4 g of 3-chloro-3-nmethyl-1-butyne are added and the reaction mixture is maintained at 65° C. for 24 hours and then at 130° C. for 1 hour 30 minutes. After cooling, the solution is hydrolysed and then extracted with dichloromethane. The combined organic phases are washed with water and then with a 1M solution of potassium hydroxide, dried over sodium sulphate and then evaporated. After chromatography on silica gel (cyclohexane/acetone: 90/10), 1.10 g of the expected product are isolated.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06288073B1 |
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| Source dataset | uspto-grants-2001_09 |
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| ORD ID | ord-82b99fb7a30d456b99d5f95d5349e24b |
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| Source note | uspto-grants-2001_09 |
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