Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Toluene | HCID 1140 | — |
| Reactant | 1-Methyl-3-aminopyrazole | HCID 137254 | — |
| Reactant | Binap, (A+-)- | HCID 634876 | — |
| Reactant | 5-(Benzyloxy)-2-bromopyridine | HCID 16094696 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 68491125 | HCID 68491125 | — |
Reaction Steps
11.2 5-Benzyloxy-2-bromo-pyridine (0.53 mmol), sodium-tert.-butyl at (1.4 eq.), tris-(dibenzylidene-acetone)-dipalladium (0.01 eq.), BINAP (0.01 eq.) and 1-methyl-1H-pyrazole-3-amine (1.2 eq.) are filled under nitrogen in a microwave reaction vessel. Degassed Toluene (50 eq.) is added. The reaction suspension is heated to 120° C. for 10 min. Ethyl acetate is added to the reaction suspension and filtrated over celite. The solvent of the filtrate is removed in vacuo. “A11” is obtained after column chromatography (heptan/ethyl acetate) as a colourless powder in a yield of 29%; HPLC (method C): 1.60 min); LC-MS (m Method A): 1.008 min, 281.15 (M+H+); 1H-NMR (DMSO-d6, 500 MHz): δ [ppm] 8.859 (s, 1H), 7.886 (d, 1H, J=2.5 Hz), 7.449-7.429 (m, 3H), 7.400-7.370 (m, 2H), 7.342-7.308 (m, 2H), 7.246 (d, 1H, J=9.0 Hz), 6.169 (d, 1H, J=2.5 Hz), 5.062 (s, 2H), 3.709 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08420642B2 |
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| Source dataset | uspto-grants-2013_04 |
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| ORD ID | ord-aae75655c3464f7b9c0b0d10696e8e14 |
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| Source note | uspto-grants-2013_04 |
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