Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Chloride | HCID 5234 | — |
| Reactant | Diphosgene | HCID 10426 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Cyclopropanemethanol | HCID 75644 | — |
| Reactant | HCID 20191108 | HCID 20191108 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 13644551 | HCID 13644551 | 36% |
Reaction Steps
On the other hand, 45 mg of 50% suspension of sodium hydride (0.94 millimole) in oil was suspended in 3 ml of anhydrous tetrahydrofuran. To the suspension 259 mg (0.85 millimole) of 5-ethoxycarbonyl-2,6-dimethyl-4-(2-nitrophenyl)dihydropyrimidine in 5 ml of tetrahydrofuran was added dropwise with stirring. The mixture was stirred for further 5 minutes. To the solution the above reaction mixture of the above sodium hydride, cyclopropylcarbinol and trichloromethyl chloroformate was added at 0° C. After 15 minutes, saturated NaCl solution was added to the mixture and it was extracted with chloroform. The organic phase was dried over anhydrous magnesium sulfate and concentrated. The residue was purified on silica gel by thin layer chromatography (developer: chloroform/methanol 10:1) to obtain 122 mg (36% yield) of title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04683234 |
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| Source dataset | uspto-grants-1987_07 |
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| ORD ID | ord-fe6ee61928e145a4b6533482f28f9537 |
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| Source note | uspto-grants-1987_07 |
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