Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | 18-Crown-6 | HCID 28557 | — |
| Reactant | HCID 19742898 | HCID 19742898 | — |
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 19742890 | HCID 19742890 | 64.3% |
Reaction Steps
3-Chloro-2,6-diethyl-4-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methylamino]pyridine (335 mg) was added to a mixture of potassium t-butoxide (75 mg) and 1,4,7,10,13,16-hexaoxacyclooctadecane (10 mg) in THF (10 ml) and the mixture was stirred for 15 minutes. Iodomethane (0.04 ml) was added and the solution heated at reflux for 6 hours. The mixture was cooled to ambient temperature and solvent was removed by evaporation. The residue was purified by flash chromatography eluting with ethyl acetate/hexane (1:1 v/v) to give 3-chloro-2,6-diethyl-4-[N-(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methyl-N-methylamino]-pyridine (A) (220 mg) as a foam; NMR (CDCl3): 1.28(double t, 6H), 2.60(s, 3H), 2.72(q, 2H), 2.96(q, 2H), 4.24(s, 2H), 6.59(s, 1H), 6.89(m, 6H), 7.13(m, 3H), 7.30(complex m, 14H), 7.95(m, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05236937 |
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| Source dataset | uspto-grants-1993_08 |
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| ORD ID | ord-98227433dfa549108cb833149702e283 |
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| Source note | uspto-grants-1993_08 |
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