Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | 2-Amino-5-methylthiazole | HCID 351770 | — |
| Reactant | HCID 7303349 | HCID 7303349 | — |
| Catalyst | Tetrabutylammonium Iodide | HCID 67553 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | Ammonium Hydroxide | HCID 14923 | — |
| Product | HCID 66660824 | HCID 66660824 | 102.8% |
Reaction Steps
A mixture of 2-(4-methylthiazol-5-yl)ethyl 4-methylbenzenesulfonate (3.23 g, 10.9 mmol), 2-amino-5-methylthiazole (1.25 g, 10.9 mmol) and tetrabutyl ammonium iodide (2 g, 5.4 mmol) in N,N-dimethylformamide (2 mL) was warmed to 85° C. and was stirred for 18 h. The mixture was cooled to ambient temperature, was diluted with CH2Cl2 (10 mL) and was quenched with 10% NaOH (5 mL). The layers were separated and the aqueous layer was extracted with CH2Cl2 (3×5 mL). The combined organics were dried over anhydrous Na2SO4, filtered, concentrated under reduced pressure and purified via column chromatography (SiO2, 10% methanol in ethyl acetate then 9:1:0.1 CH2Cl2:methanol:ammonium hydroxide) to give the title compound (1.34 g, 5.6 mmol, 51% yield). MS (DCI/NH3) m/z 240 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08338467B2 |
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| Source dataset | uspto-grants-2012_12 |
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| ORD ID | ord-443a897075fa483eb1a47eeacef5fd87 |
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| Source note | uspto-grants-2012_12 |
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