HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 9168Generated: October 25, 2026
Ethyl isocyanate → N-(6-Cyano-1,3-benzothiazol-2-yl)-N'-ethylurea
https://huagongshe.com/reaction/9168
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl isocyanate | HCID 8022 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 2-Aminobenzothiazole-6-carbonitrile | HCID 4327139 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | N-(6-Cyano-1,3-benzothiazol-2-yl)-N'-ethylurea | HCID 21985533 | — |
Reaction Steps
0.2 grams of 2-amino-1,3-benzothiazole-6-carbonitrile is dissolved in about 5 ml dimethylformamide. About 0.2 ml of ethylisocyanate is added followed by about 0.3 ml triethylamine and the solution is heated to about 80° C. under good agitation. The solution is allowed to stir for about 4 hours then cooled to RT. The solvent is removed in vacuo and the solids are washed well with ether. The product is further purified by column chromatography and after drying in vacuo, about 0.14 grams is isolated.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07091227B2 |
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| Source dataset | uspto-grants-2006_08 |
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| ORD ID | ord-b5781a6f057c43938316f29e4db42aaf |
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| Source note | uspto-grants-2006_08 |
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