HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzene, 1-fluoro-2-methyl-4-nitro- → tert-Butyl 4-(2-methyl-4-nitrophenyl)piperazine-1-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzene, 1-fluoro-2-methyl-4-nitro- | HCID 68001 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Solvent | Dimethyl Sulfoxide | HCID 679 | — |
| Product | tert-Butyl 4-(2-methyl-4-nitrophenyl)piperazine-1-carboxylate | HCID 22336105 | — |
Reaction Steps
In the same manner as in Production Example 5-1, but using tert-butyl piperazine-1-carboxylate in place of N-ethylpiperazine used in Production Example 5-1, using 2-fluoro-5-nitrotoluene in place of 2-fluoro-5-nitrobenzyl alcohol, using N,N-diisopropylethylamine in place of potassium carbonate, and using dimethylsulfoxide in place of N-methylpyrrolidone, 4.91 g of crude tert-butyl 4-[2-methyl-4-nitrophenyl]piperazine-1-carboxylate was obtained as a yellow solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07935708B2 |
| Source dataset | uspto-grants-2011_05 |
| ORD ID | ord-868f69b5c7c24614aa5df62cdb79badf |
| Source note | uspto-grants-2011_05 |