HuagongsheHuagongshe Chemistry Print Report · For research reference only
Lawesson's reagent → (+/-)-1-Methyl-5-(2-methyl-7-ethyl-4H-benzo[5,6]cyclohepta[1,2-d]thiazol-4-yl)-3,4-dihydro-4-thioxo-2-(1H)-pyrimidinone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Lawesson's reagent | HCID 87949 | — |
| Reactant | (+/-)-5-[7-Ethyl-2-methyl-4H-benzo[5,6]cyclohepta[1,2-d]thiazol-4-yl]-1-methyl-2,4(1H,3H)-pyrimidinedione | HCID 70113042 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | (+/-)-1-Methyl-5-(2-methyl-7-ethyl-4H-benzo[5,6]cyclohepta[1,2-d]thiazol-4-yl)-3,4-dihydro-4-thioxo-2-(1H)-pyrimidinone | HCID 88151787 | — |
Reaction Steps
A mixture of the product of step (xii) (0.070 g) and Lawesson's reagent (0.077 g) in 1,4-dioxane (5 ml) was heated at reflux for 16 hours. The solvent was evaporated under reduced pressure. Purification was by chromatography eluting with 2% ethanol in dichloromethane to give the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06218376B1 |
| Source dataset | uspto-grants-2001_04 |
| ORD ID | ord-a022612c47b944778eaa5be81911e400 |
| Source note | uspto-grants-2001_04 |