HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phosphorus oxychloride → 4-Chloro-2-(pyrazin-2-yl)-6-nitro-thieno-[2,3-d]-pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phosphorus oxychloride | HCID 24813 | — |
| Reactant | Pyrazinecarbonitrile | HCID 73172 | — |
| Reactant | 3-Thiophenecarboxylic acid, 2-amino-5-nitro-, ethyl ester | HCID 2737608 | — |
| Product | 4-Chloro-2-(pyrazin-2-yl)-6-nitro-thieno-[2,3-d]-pyrimidine | HCID 18460196 | — |
Reaction Steps
With the procedure of Example 477, the reaction of 2-cyanopyrazine and 2-amino-5-nitro-3-ethoxycarbonyl-thiophene, and the subsequent reaction with POCl3 yields 4-chloro-2-(pyrazin-2-yl)-6-nitro-thieno-[2,3-d]-pyrimidine.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06432950B1 |
| Source dataset | uspto-grants-2002_08 |
| ORD ID | ord-33f0cb0010f341deb132dacbfc6e36a4 |
| Source note | uspto-grants-2002_08 |