HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 19387252, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | 6-nitro-2,2-dimethyl-3-aminomethyl-4-(2-oxo-1,2-dihydropyridin-1-yl)-2H-1-benzopyran | HCID 19387052 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 19387252 | HCID 19387252 | 56.5% |
Reaction Steps
To a solution of 6-nitro-2,2-dimethyl-3-aminomethyl-4-(2-oxo-1,2-dihydropyridin-1-yl)-2H-1-benzopyran (0.43 g, 1.31 mmol) and triethylamine (0.22 ml, 1.58 mmol) in dichloromethane (15 ml) was added methanesulfonylchloride (0.12 ml, 1.55 mol). The solution was stirred at room temperature for four hours, and then water was added. The organic phase was separated and evaporated under reduced pressure. The residue was washed with diethyl ether, affording 0.3 g of 6-nitro-2,2-dimethyl-3-(methanesulfonamido)methyl-4-(2-oxo-1,2-dihydropyridin-1-yl)-2H-1-benzopyran, m.p. 195° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05447943 |
| Source dataset | uspto-grants-1995_09 |
| ORD ID | ord-25e9c06589d94859b2555406b87af5cf |
| Source note | uspto-grants-1995_09 |