HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 570835Generated: October 30, 2026
Hydrochloric Acid → 4-(3-Butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid
https://huagongshe.com/reaction/570835
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Lithium hydroxide, monohydrate | HCID 168937 | — |
| Reactant | 4-(3-Butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid ethyl ester | HCID 59478057 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4-(3-Butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid | HCID 59477764 | 98.9% |
Reaction Steps
A suspension of 4-(3-butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid ethyl ester (0.030 g) and lithium hydroxide mono hydrate (0.041 g) in ethanol (2 mL) and water (1 mL) was stirred at 50° C. for 2 hours. To this reaction mixture was added 1 mol/L hydrochloric acid (5 mL), and this mixture was stirred at room temperature for 30 minutes. This reaction mixture was extracted with ethyl acetate, and this organic layer was washed with water, dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to give the title compound (0.027 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09023882B2 |
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| Source dataset | uspto-grants-2015_05 |
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| ORD ID | ord-339af673c05048f6ad5bbc8041fe35a8 |
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| Source note | uspto-grants-2015_05 |
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