HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 869202Generated: October 30, 2026
Cesium carbonate → HCID 67451804, compound
https://huagongshe.com/reaction/869202
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Ethyl thiazole-5-carboxylate | HCID 459108 | — |
| Reactant | 2-(Di-tert-butylphosphino)biphenyl | HCID 2734215 | — |
| Reactant | HCID 86686131 | HCID 86686131 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 67451804 | HCID 67451804 | 24.8% |
Reaction Steps
tert-butyl 6-chloropyridazin-3-yl((1-(3-fluoropyridin-2-yl)cyclobutyl)methyl)carbamate (500 mg, 1.27 mmol), ethyl thiazole-5-carboxylate (300 mg, 1.91 mmol), Pd(OAc)2 (86 mg, 0.13 mmol), JohnPhos (92 mg, 0.26 mmol) and Cs2CO3 (827 mg, 2.54 mmol) in toluene (10 mL) were combined and heated in a microwave reactor for 30 min at 145° C. The reaction mixture was filtered through a celite plug and the filtrate was concentrated. The resulting residue was purified on silica gel using a mixture of ethyl acetate and hexanes to provide the title compound as yellow oil (162 mg, 82% pure, 21%), LRMS (M+H+) m/z 514.3.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08969346B2 |
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| Source dataset | uspto-grants-2015_03 |
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| ORD ID | ord-a520da7a6a2a47a38ca51688c8405fea |
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| Source note | uspto-grants-2015_03 |
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