HuagongsheHuagongshe Chemistry Print Report · For research reference only
3-Sulfolene → 2,5-Bis-(2-pyrrylmethylidene)-2,5-dihydrothiophene-1,1-dioxide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3-Sulfolene | HCID 6498 | — |
| Reactant | Pyrrole-2-carboxaldehyde | HCID 13854 | — |
| Reactant | HCID 178418582 | HCID 178418582 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Sodium Hydroxide | HCID 14798 | — |
| Product | 2,5-Bis-(2-pyrrylmethylidene)-2,5-dihydrothiophene-1,1-dioxide | HCID 57120107 | — |
Reaction Steps
About 20 mmol (2.36 g) of 3-sulfolene (MW=118) and 42 mmol (4 g) of pyrrole-2-aldehyde (MW=95) were dissolved in an alkaline solution of 1.5 g of NaOH and 1.9 g of NaOCH3 in 70 ml of methanol. The mixture was stirred at room temperature for 5 days. The black-brown reaction mixture was concentrated.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05136049 |
| Source dataset | uspto-grants-1992_08 |
| ORD ID | ord-d07ebca76aa3460ba6ab7a67db724ae9 |
| Source note | uspto-grants-1992_08 |