Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Azide | HCID 33557 | — |
| Reactant | HCID 68294348 | HCID 68294348 | — |
| Catalyst | Zinc bromide | HCID 10421208 | — |
| Product | HCID 178426099 | HCID 178426099 | 71% |
Reaction Steps
A round-bottomed flask was charged with 4,5-bis(4-chloro-2-methylphenyl)thiazole-2-carbonitrile (150 mg, 0.42 mmol), zinc bromide (189 mg, 0.84 mmol) and sodium azide (45.5 mg, 0.84 mmol). After degassed, DMF (3 mL) was added. The reaction mixture was heated to 150° C. overnight. After cooled to rt, the reaction was quenched with 30 mL of 0.1 N aqueous HCl, and extracted with ethyl acetate. The organic phase was dried over anhydrous sodium sulphate and then concentrated. The residue was purified by flash chromatography (hexane:EtOAc:AcOH=30:10:1). 120 mg of product was obtained as a white solid, 1H NMR (DMSO, 500 MHz) δ 7.93 (d, J=8.41 Hz, 1H), 7.57 (d, J=1.90 Hz, 1H), 7.49-7.44 (m, 2H), 7.33-7.28 (m, 2H), 2.63 (s, 3H), 2.18 (s, 3H); 13C NMR (DMSO, 125 MHz) δ 166.07, 153.61, 139.50, 138.74, 134.92, 133.48, 132.53, 131.87, 131.42, 130.27, 129.98, 126.64, 125.67, 21.13, 19.51.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09012655B2 |
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| Source dataset | uspto-grants-2015_04 |
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| ORD ID | ord-083e13f55f924029887188bc3e100cde |
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| Source note | uspto-grants-2015_04 |
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