Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | psi-Pelletierine | HCID 11096 | — |
| Reactant | 2,2,2-Trichloroethyl chloroformate | HCID 87063 | — |
| Catalyst | Potassium Carbonate | HCID 11430 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 15646116 | HCID 15646116 | 76.1% |
Reaction Steps
To a solution of pseudopelletierine (52 g, 0.34 mol) in toluene (220 mL) at 50° C. was added anhydrous potassium carbonate (1.0 g), followed by the slow addition of trichloroethylchloroformate (79 g, 0.37 mol). After addition was completed (30 minutes), triethylamine (10 mL) was added. The reaction was allowed to cool to room temperature and stirred for 18 hours. The reaction mixture was diluted with ethyl acetate (300 mL) and 1N hydrochloric acid (200 mL). After the organic layer was washed with 1N hydrochloric acid (100 mL), it was washed with aqueous 10% sodium hydroxide (100 mL). The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated to afford a beige solid which was triturated with hexane (300 mL) to afford 81.4 g of crystalline solid (76% yield); mp 95°-96° C. after recrystallization from ethyl acetate-hexane. Anal. (C11H14C13NO3).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05250537 |
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| Source dataset | uspto-grants-1993_10 |
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| ORD ID | ord-5ebd17a7ebf543f2aa6fdad6211aef7d |
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| Source note | uspto-grants-1993_10 |
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