HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acrylonitrile → (E)-4-Ethoxy-3-(1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-pyrimidin-5-yl)cinnamonitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acrylonitrile | HCID 7855 | — |
| Reactant | 5-(5-Bromo-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-D]pyrimidin-7(6H)-one | HCID 135738554 | — |
| Product | (E)-4-Ethoxy-3-(1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-pyrimidin-5-yl)cinnamonitrile | HCID 178440314 | — |
Reaction Steps
The title compound was prepared from acrylonitrile and 5-(5-bromo-2-ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-pyrimidin-7-one following the procedure of Example 19 and was obtained as off-white crystals (33%). Found C,65.99; H,5.52; N,19.07. C20H21N5O2 requires C,66.10; H,5.82; N,19.27%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05272147 |
| Source dataset | uspto-grants-1993_12 |
| ORD ID | ord-0ba345190734476e97edd072d4ec6200 |
| Source note | uspto-grants-1993_12 |