Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Oxalyl chloride | HCID 65578 | — |
| Reactant | HCID 11036363 | HCID 11036363 | — |
| Catalyst | Dimethylformamide | HCID 6228 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 10927507 | HCID 10927507 | — |
Reaction Steps
2.0 g (5.2 mmol) of 2-(8-chloro-4,4-dimethyl-1,1-dioxothiochroman-7-yl)carbonyl-1,3-cyclohexanedione were dissolved in 30 ml of methylene chloride and 2.2 g (17.3 mmol) of oxalyl chloride and 2 drops of dimethylformamide were added. After 1 hour of stirring at 25° C., the solvent was removed. This gave 2.1 g of colored crystals.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06440899B1 |
|---|
| Source dataset | uspto-grants-2002_08 |
|---|
| ORD ID | ord-4465588775e045b5a484a24bcc9d2fbb |
|---|
| Source note | uspto-grants-2002_08 |
|---|
