HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dimethyl acetylenedicarboxylate → HCID 12437419, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dimethyl acetylenedicarboxylate | HCID 12980 | — |
| Reactant | 5-(3,4-Dichlorophenyl)-1,3,4-oxathiazol-2-one | HCID 12437402 | — |
| Solvent | Chlorobenzene | HCID 7964 | — |
| Product | HCID 12437419 | HCID 12437419 | 70.7% |
Reaction Steps
5-(3,4-Dichlorophenyl)-1,3,4-oxathiazol-2-one (99.2 g, 0.4 mol) and dimethyl acetylenedicarboxylate (113.5 g, 0.8 mol) were heated in 240 ml of chlorobenzene at reflux for 47 hours. The product, from hot methanol, was recrystallized twice from hot methanol to give 97.8 g (0.283 mol, 70.7%) of white solid, m.p. 105°-107°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04187099 |
| Source dataset | uspto-grants-1980_02 |
| ORD ID | ord-a339b53132fe4bcdab61799cfff8f1aa |
| Source note | uspto-grants-1980_02 |