HuagongsheHuagongshe Chemistry Print Report · For research reference only
Propionic Acid → 4-(2,6-Difluoro-9H-thioxanthen-9-ylidene)-1-methylpiperidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Propionic Acid | HCID 1032 | — |
| Reactant | Sulphobenzoic anhydride | HCID 13795534 | — |
| Reactant | 2,6-Difluoro-9-(1-methylpiperidin-4-YL)-9H-thioxanthen-9-OL | HCID 20357479 | — |
| Product | 4-(2,6-Difluoro-9H-thioxanthen-9-ylidene)-1-methylpiperidine | HCID 20357530 | — |
Reaction Steps
The thioxanthene-9-ol (2.6 g., 0.0075 mol) prepared as above is heated with 2.8 g. (0.015 mol) of o-sulfobenzoic anhydride in 80 ml. of propionic acid. The product is isolated by the usual procedure to give 4-(2,6-difluoro-9-thioxanthenylidene)-1-methylpiperidine, m.p. 120°-123° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04086350 |
| Source dataset | uspto-grants-1978_04 |
| ORD ID | ord-c69734512e314c74b321adb0e585f9e9 |
| Source note | uspto-grants-1978_04 |