HuagongsheHuagongshe Chemistry Print Report · For research reference only
Propargyl bromide → 4,9-Dihydro-3-methyl-4-(prop-2-ynyl)-10H-thieno[3,4-b][1,5]benzodiazepin-10-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Propargyl bromide | HCID 7842 | — |
| Reactant | 9,10-dihydro-3-methyl-4H-thieno[3,4-b][1,5]benzodiazepin-10-one | HCID 12658700 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 4,9-Dihydro-3-methyl-4-(prop-2-ynyl)-10H-thieno[3,4-b][1,5]benzodiazepin-10-one | HCID 20062492 | 50% |
Reaction Steps
Prepared analogously to Example la) from 4,9-dihydro-3-methyl-10H-thieno[3,4-b][1,5]benzodiazepin-10-one and 3-bromo-prop-1-yne in the presence of butyllithium and tetrahydrofuran in a yield of 50% of theory. The crude crystalline product was used for subsequent reactions without being further purified by chromatography.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05006522 |
| Source dataset | uspto-grants-1991_04 |
| ORD ID | ord-57fe840065ca4fbe9ee5422a49d492c2 |
| Source note | uspto-grants-1991_04 |