Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 2-Butene, 1-bromo-3-methyl- | HCID 70092 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | HCID 73656241 | HCID 73656241 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 67897303 | HCID 67897303 | 35% |
Reaction Steps
To a stirred solution of 1.42 g of 6,12-dimethyl-1,2,3,4,5,6-hexahydro-2,6-methano-8H-pyrrolo[2,3-i][3]benzazocine and 40 ml of dimethylformamide was added 1.54 ml of diisopropylethyl amine. The mixture was cooled to 0° C. and 0.97 g of 4-bromo-2-methyl-2-butene in 8 ml of dimethylformamide was added, under nitrogen. The mixture was stirred at 0° C. for an additional 1.25 hr, and was poured into water and ethyl acetate. The layers were separated and the aqueous layer was extracted with ethyl acetate and ether. The combined organic layers were washed with brine, dried over anhydrous potassium carbonate, filtered, and concentrated. The residue was purified by flash column chromatography (silica gel, 2% triethylamine/ethyl acetate) to afford 0.63 g (35%) of product, mp 62°-65° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05037985 |
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| Source dataset | uspto-grants-1991_08 |
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| ORD ID | ord-3f6234889d7b4bdf97b687969ff61306 |
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| Source note | uspto-grants-1991_08 |
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