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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 62680Generated: October 30, 2026

Trifluoroacetic acid → Azetidin-3-ylmethyl (2-nitro-5-(thiophen-2-yl)phenyl)carbamate

https://huagongshe.com/reaction/62680

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantButyl 3-((((2-nitro-5-(thiophen-2-yl)phenyl)carbamoyl)oxy)methyl)azetidine-1-carboxylateHCID 86712525—
SolventDichloromethaneHCID 6344—
ProductAzetidin-3-ylmethyl (2-nitro-5-(thiophen-2-yl)phenyl)carbamateHCID 7100732591.3%

Reaction Steps

To a solution of tort-butyl 3-((((2-nitro-5-(thiophen-2-yl)phenyl)carbamoyl)oxy)methyl)azetidine-1-carboxylate (0.50 g, 1.15 mmol, 1 eq.) in dichloromethane (10 mL) was added TFA (3 mL) at 0° C. The reaction was stirred at room temperature for 2 h. The reaction was concentrated under reduced pressure. A saturated solution of sodium bicarbonate was added. The obtained solid was filtered and dried under reduced pressure to afford azetidin-3-ylmethyl (2-nitro-5-(thiophen-2-yl)phenyl)carbamate (0.35 g, 91% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447030B2
Source datasetuspto-grants-2016_09
ORD IDord-bb68253daf194d10a61d3f371f0b759c
Source noteuspto-grants-2016_09