HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Carbonate → 4,5-Dihydro-6-methyl-4[[4-(phenylmethyl)-1-piperazinyl]acetyl]-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile, dihydrochloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 1-Benzylpiperazine | HCID 75994 | — |
| Reactant | Tetrafluoro-m-phenylenediamine dihydrochloride | HCID 149026 | — |
| Reactant | 4-(Chloroacetyl)-4,5-dihydro-6-methyl-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]-pyrimidine-3-carbonitrile | HCID 15101085 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | 4,5-Dihydro-6-methyl-4[[4-(phenylmethyl)-1-piperazinyl]acetyl]-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile, dihydrochloride | HCID 131716668 | — |
Reaction Steps
A mixture of 3.4 g of 4-(chloroacetyl)4,5-dihydro-6-methyl-7-[3-(trifluoromethyl)phenyl]pyrazolo-[1,5-a]pyrimidine-3-carbonitrile, 1.1 g of sodium carbonate, 1.7 g of N-benzylpiperazine and 115 ml of toluene was reacted as described in Example 16, giving the base form of the product which was converted to the dihydrochloride salt by the procedure of Example 97, giving 2.4 g, mp 204°-206° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05219857 |
| Source dataset | uspto-grants-1993_06 |
| ORD ID | ord-60126ddd85634bf9ae1105035621bfdd |
| Source note | uspto-grants-1993_06 |