HuagongsheHuagongshe Chemistry Print Report · For research reference only
Stannous Chloride → 3-[2-(2,2-Difluoro-benzo[1,3]dioxol-4-yl)-2H-pyrazol-3-yl]-1-(4-difluoromethoxy-phenyl)-1H-pyridazin-4-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Stannous Chloride | HCID 24479 | — |
| Reactant | Sodium Nitrite | HCID 23668193 | — |
| Reactant | (2,2-Difluoro-benzo[1,3]dioxol-4-yl)hydrazine | HCID 55279040 | — |
| Reactant | 1-(4-Difluoromethoxy-phenyl)-3-((E)-3-dimethylamino-acryloyl)-1H-pyridazin-4-one | HCID 59369978 | — |
| Product | 3-[2-(2,2-Difluoro-benzo[1,3]dioxol-4-yl)-2H-pyrazol-3-yl]-1-(4-difluoromethoxy-phenyl)-1H-pyridazin-4-one | HCID 59370118 | — |
Reaction Steps
The product was obtained starting from 1-(4-Difluoromethoxy-phenyl)-3-((E)-3-dimethylamino-acryloyl)-1H-pyridazin-4-one (A-9) and 2,2-difluoro-benzo[1,3]dioxol-4-yl-hydrazine (prepared from the corresponding amino derivative using sodium nitrite and tin(II) chloride as described in J. Med. Chem. 2003, 46, 4676-4686) according to the method described for example 91. MS: M=461.3 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08178538B2 |
| Source dataset | uspto-grants-2012_05 |
| ORD ID | ord-2ffda8a806f2470abdc341e2934a1979 |
| Source note | uspto-grants-2012_05 |