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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1630366Generated: October 29, 2026

Benzene, 1-fluoro-2-methyl-4-nitro- → tert-Butyl 4-(2-methyl-4-nitrophenyl)piperazine-1-carboxylate

https://huagongshe.com/reaction/1630366

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzene, 1-fluoro-2-methyl-4-nitro-HCID 68001—
ReactantDiisopropylethylamineHCID 81531—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
SolventDimethyl SulfoxideHCID 679—
Producttert-Butyl 4-(2-methyl-4-nitrophenyl)piperazine-1-carboxylateHCID 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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791125B2
Source datasetuspto-grants-2014_07
ORD IDord-d04bcb6604cf42d5809efcf6e0192822
Source noteuspto-grants-2014_07