HuagongsheHuagongshe Chemistry Print Report · For research reference only
Trifluoroacetic acid → (E)-3-[1-(3-bromo-benzenesulfonyl)-1H-pyrrol-3-yl]-acrylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Trifluoroacetic acid | HCID 6422 | — |
| Reactant | (E)-3-[1-(3-Bromo-benzenesulfonyl)-1H-pyrrol-3-yl]-acrylic acid tert-butyl ester | HCID 66646069 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (E)-3-[1-(3-bromo-benzenesulfonyl)-1H-pyrrol-3-yl]-acrylic acid | HCID 68526317 | 44.6% |
Reaction Steps
A mixture of 2.0 g (E)-3-[1-(3-bromo-benzenesulfonyl)-1H-pyrrol-3-yl]-acrylic acid tert-butyl ester with 60 ml dichloromethane and 6.0 ml TFA is stirred at ambient temperature for 24 h. The dichloromethane and TFA is evaporated and the residue is coevaporated with toluene for a few times. By this method 0.77 g brown solid is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07666868B2 |
| Source dataset | uspto-grants-2010_02 |
| ORD ID | ord-e8ad8c61cb5f4c8fa6b4bcec0bf5e1bb |
| Source note | uspto-grants-2010_02 |